/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/popl20-figure1-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:34:13,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:34:13,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:34:13,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 13:34:13,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 13:34:13,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 13:34:13,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 13:34:13,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 13:34:13,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 13:34:13,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 13:34:13,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 13:34:13,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 13:34:13,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:34:13,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:34:13,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:34:13,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:34:13,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:34:13,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:34:13,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:34:13,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:34:13,488 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:34:13,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:34:13,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:34:13,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:34:13,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:34:13,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:34:13,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-26 13:34:13,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-26 13:34:13,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-26 13:34:13,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-26 13:34:13,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-26 13:34:13,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-26 13:34:13,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-26 13:34:13,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-26 13:34:13,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:34:13,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:34:13,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:34:13,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-26 13:34:13,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:34:13,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:34:13,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:34:13,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:34:13,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:34:13,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:34:13,560 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:34:13,561 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:34:13,561 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:34:13,561 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:34:13,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:34:13,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:34:13,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:34:13,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:34:13,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:34:13,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:34:13,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:34:13,564 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-26 13:34:13,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:34:13,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:34:13,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:34:13,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:34:13,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:34:13,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:34:13,896 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:34:13,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure1-alt.wvr.c [2022-07-26 13:34:13,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2776fa4f3/f392a1c9fd714445a284c07fac277935/FLAG0d0fdd881 [2022-07-26 13:34:14,328 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:34:14,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1-alt.wvr.c [2022-07-26 13:34:14,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2776fa4f3/f392a1c9fd714445a284c07fac277935/FLAG0d0fdd881 [2022-07-26 13:34:14,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2776fa4f3/f392a1c9fd714445a284c07fac277935 [2022-07-26 13:34:14,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:34:14,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:34:14,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:34:14,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:34:14,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:34:14,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344cf94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14, skipping insertion in model container [2022-07-26 13:34:14,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:34:14,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:34:14,499 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/popl20-figure1-alt.wvr.c[2087,2100] [2022-07-26 13:34:14,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:34:14,506 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:34:14,521 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/popl20-figure1-alt.wvr.c[2087,2100] [2022-07-26 13:34:14,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:34:14,534 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:34:14,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14 WrapperNode [2022-07-26 13:34:14,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:34:14,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:34:14,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:34:14,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:34:14,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,574 INFO L137 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-07-26 13:34:14,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:34:14,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:34:14,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:34:14,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:34:14,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:34:14,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:34:14,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:34:14,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:34:14,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (1/1) ... [2022-07-26 13:34:14,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:14,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:14,627 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) [2022-07-26 13:34:14,629 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 [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 13:34:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 13:34:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 13:34:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:34:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:34:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 13:34:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:34:14,658 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 13:34:14,707 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:34:14,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:34:14,869 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:34:14,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:34:14,892 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-26 13:34:14,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:34:14 BoogieIcfgContainer [2022-07-26 13:34:14,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:34:14,894 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:34:14,894 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:34:14,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:34:14,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:34:14,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:34:14" (1/3) ... [2022-07-26 13:34:14,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4615b1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:34:14, skipping insertion in model container [2022-07-26 13:34:14,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:34:14,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:34:14" (2/3) ... [2022-07-26 13:34:14,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4615b1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:34:14, skipping insertion in model container [2022-07-26 13:34:14,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:34:14,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:34:14" (3/3) ... [2022-07-26 13:34:14,899 INFO L322 chiAutomizerObserver]: Analyzing ICFG popl20-figure1-alt.wvr.c [2022-07-26 13:34:14,944 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 13:34:14,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 88 transitions, 192 flow [2022-07-26 13:34:14,989 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2022-07-26 13:34:14,989 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:34:14,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 84 events. 6/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-26 13:34:14,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 88 transitions, 192 flow [2022-07-26 13:34:14,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 84 transitions, 180 flow [2022-07-26 13:34:15,006 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:34:15,006 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:34:15,006 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:34:15,006 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:34:15,006 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:34:15,006 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:34:15,007 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:34:15,007 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:34:15,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 13:34:15,102 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 305 [2022-07-26 13:34:15,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:34:15,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:34:15,106 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, 1, 1, 1, 1, 1, 1] [2022-07-26 13:34:15,106 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-26 13:34:15,106 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 13:34:15,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 454 states, but on-demand construction may add more states [2022-07-26 13:34:15,119 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 305 [2022-07-26 13:34:15,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:34:15,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:34:15,120 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, 1, 1, 1, 1, 1, 1] [2022-07-26 13:34:15,120 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-26 13:34:15,125 INFO L733 eck$LassoCheckResult]: Stem: 90#[ULTIMATE.startENTRY]don't care [200] ULTIMATE.startENTRY-->L-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 93#[L-1]don't care [182] 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] 95#[L-1-1]don't care [205] L-1-1-->L-1-2: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 97#[L-1-2]don't care [207] L-1-2-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 99#[L21]don't care [177] L21-->L21-1: Formula: (and (= (select |v_#valid_2| 1) 1) (= 2 (select |v_#length_1| 1))) InVars {#length=|v_#length_1|, #valid=|v_#valid_2|} OutVars{#length=|v_#length_1|, #valid=|v_#valid_2|} AuxVars[] AssignedVars[] 101#[L21-1]don't care [195] L21-1-->L21-2: Formula: (= 48 (select (select |v_#memory_int_1| 1) 0)) InVars {#memory_int=|v_#memory_int_1|} OutVars{#memory_int=|v_#memory_int_1|} AuxVars[] AssignedVars[] 103#[L21-2]don't care [193] L21-2-->L21-3: Formula: (= (select (select |v_#memory_int_2| 1) 1) 0) InVars {#memory_int=|v_#memory_int_2|} OutVars{#memory_int=|v_#memory_int_2|} AuxVars[] AssignedVars[] 105#[L21-3]don't care [163] L21-3-->L21-4: Formula: (and (= (select |v_#length_2| 2) 25) (= (select |v_#valid_3| 2) 1)) InVars {#length=|v_#length_2|, #valid=|v_#valid_3|} OutVars{#length=|v_#length_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[] 107#[L21-4]don't care [216] L21-4-->L38: Formula: (= 0 v_~N1~0_3) InVars {} OutVars{~N1~0=v_~N1~0_3} AuxVars[] AssignedVars[~N1~0] 109#[L38]don't care [217] L38-->L38-1: Formula: (= 0 v_~N2~0_3) InVars {} OutVars{~N2~0=v_~N2~0_3} AuxVars[] AssignedVars[~N2~0] 111#[L38-1]don't care [164] L38-1-->L-1-3: Formula: (= v_~counter~0_6 0) InVars {} OutVars{~counter~0=v_~counter~0_6} AuxVars[] AssignedVars[~counter~0] 113#[L-1-3]don't care [210] L-1-3-->L-1-4: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 115#[L-1-4]don't care [190] L-1-4-->L-1-5: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 117#[L-1-5]don't care [158] L-1-5-->L-1-6: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 119#[L-1-6]don't care [188] L-1-6-->L62: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#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_1|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~mem12#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 121#[L62]don't care [211] L62-->L62-1: Formula: (and (= |v_ULTIMATE.start_main_~#t1~0#1.offset_2| 0) (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) (= |v_#length_3| (store |v_#length_4| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 4)) (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_2| 0)) (= (store |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 1) |v_#valid_4|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_4|, #valid=|v_#valid_5|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 123#[L62-1]don't care [198] L62-1-->L62-2: Formula: (and (= |v_#length_5| (store |v_#length_6| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 4)) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2|) 0) (= (store |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 1) |v_#valid_6|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_2| 0)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_2|) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_2|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_6|, #valid=|v_#valid_7|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_5|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_2|, #valid=|v_#valid_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 125#[L62-2]don't care [176] L62-2-->L64: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_2| v_~N1~0_4) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|, ~N1~0=v_~N1~0_4} AuxVars[] AssignedVars[~N1~0] 127#[L64]don't care [165] L64-->L65: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 129#[L65]don't care [222] L65-->L65-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet6#1_2| v_~N2~0_4) InVars {ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|, ~N2~0=v_~N2~0_4} AuxVars[] AssignedVars[~N2~0] 131#[L65-1]don't care [202] L65-1-->L67: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 133#[L67]don't care [199] L67-->L67-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 135#[L67-1]don't care [170] L67-1-->L67-2: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1| (ite (and (<= 0 v_~N1~0_5) (<= 0 v_~N2~0_5)) 1 0)) InVars {~N1~0=v_~N1~0_5, ~N2~0=v_~N2~0_5} OutVars{~N1~0=v_~N1~0_5, ~N2~0=v_~N2~0_5, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond#1] 137#[L67-2]don't care [157] L67-2-->L34: Formula: true InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 139#[L34]don't care [173] L34-->L35: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2| |v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 141#[L35]don't care [197] L35-->L34-1: Formula: (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_4| 0)) InVars {ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} AuxVars[] AssignedVars[] 145#[L34-1]don't care [191] L34-1-->L70: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 147#[L70]don't care [220] L70-->L70-1: Formula: (= |v_ULTIMATE.start_main_#t~pre7#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 149#[L70-1]don't care [174] L70-1-->L70-2: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 151#[L70-2]don't care [172] L70-2-->L70-3: Formula: (and (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_3|) (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) 1) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|)) (= (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) |v_ULTIMATE.start_main_~#t1~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre7#1_3|)) |v_#memory_int_3|)) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} OutVars{#valid=|v_#valid_8|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 153#[L70-3]don't care [249] L70-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_8|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_4|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_12, thread1Thread1of1ForFork1_#res.offset=|v_thread1Thread1of1ForFork1_#res.offset_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|, thread1Thread1of1ForFork1_thidvar1=v_thread1Thread1of1ForFork1_thidvar1_2, thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#res.base, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0, thread1Thread1of1ForFork1_#res.offset, thread1Thread1of1ForFork1_thidvar1, thread1Thread1of1ForFork1_thidvar0] 155#[L70-4, thread1ENTRY]don't care [224] thread1ENTRY-->L41-4: Formula: (= v_thread1Thread1of1ForFork1_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_~i~0] 157#[L70-4, L41-4]don't care [2022-07-26 13:34:15,125 INFO L735 eck$LassoCheckResult]: Loop: 157#[L70-4, L41-4]don't care [227] L41-4-->L42: Formula: (< v_thread1Thread1of1ForFork1_~i~0_5 v_~N1~0_2) InVars {thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_5, ~N1~0=v_~N1~0_2} OutVars{thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_5, ~N1~0=v_~N1~0_2} AuxVars[] AssignedVars[] 163#[L70-4, L42]don't care [229] L42-->L44: Formula: (= (+ v_~counter~0_17 1) v_~counter~0_16) InVars {~counter~0=v_~counter~0_17} OutVars{~counter~0=v_~counter~0_16, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_1|} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork1_#t~post2] 173#[L70-4, L44]don't care [231] L44-->L41-2: Formula: (= |v_thread1Thread1of1ForFork1_#t~post1_1| v_thread1Thread1of1ForFork1_~i~0_7) InVars {thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_7} OutVars{thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_7, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_1|} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post1] 187#[L70-4, L41-2]don't care [232] L41-2-->L41-3: Formula: (= v_thread1Thread1of1ForFork1_~i~0_9 (+ |v_thread1Thread1of1ForFork1_#t~post1_3| 1)) InVars {thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_3|} OutVars{thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_9, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_3|} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_~i~0] 203#[L41-3, L70-4]don't care [233] L41-3-->L41-4: Formula: true InVars {} OutVars{thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_5|} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post1] 157#[L70-4, L41-4]don't care [2022-07-26 13:34:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash -45089768, now seen corresponding path program 1 times [2022-07-26 13:34:15,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:15,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274429100] [2022-07-26 13:34:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:34:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:34:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 245319973, now seen corresponding path program 1 times [2022-07-26 13:34:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:15,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861440005] [2022-07-26 13:34:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:15,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,265 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:34:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:34:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 925647726, now seen corresponding path program 1 times [2022-07-26 13:34:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:15,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921014824] [2022-07-26 13:34:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:15,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,290 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:34:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:15,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:34:15,358 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:34:15,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:34:15,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:34:15,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:34:15,358 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:34:15,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:34:15,359 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:34:15,359 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:34:15,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:34:15,359 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:34:15,392 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,397 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,403 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,406 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,408 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,410 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,414 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,428 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:34:15,506 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:34:15,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,509 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2022-07-26 13:34:15,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-26 13:34:15,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:15,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:15,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:34:15,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_1=1} Honda state: {v_rep#funAddr~thread2.offset_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:34:15,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-26 13:34:15,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,574 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2022-07-26 13:34:15,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-26 13:34:15,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:15,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:15,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:15,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,611 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2022-07-26 13:34:15,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-26 13:34:15,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:34:15,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:15,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:34:15,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:15,721 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:34:15,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:34:15,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:34:15,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:34:15,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:34:15,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:34:15,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:34:15,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-26 13:34:15,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:34:15,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:34:15,723 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,728 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,741 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,745 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,748 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,750 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,754 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,757 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:15,846 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:34:15,849 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:34:15,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,852 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2022-07-26 13:34:15,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-26 13:34:15,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:15,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:15,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:15,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:15,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:15,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:34:15,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:34:15,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:34:15,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-26 13:34:15,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,935 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2022-07-26 13:34:15,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-26 13:34:15,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:15,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:15,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:34:15,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:15,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:15,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:15,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:34:15,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:34:15,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:34:15,965 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-26 13:34:15,966 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-26 13:34:15,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:15,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:15,968 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2022-07-26 13:34:15,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-26 13:34:15,970 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:34:15,970 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:34:15,970 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:34:15,971 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork1_~i~0, ~N1~0) = -1*thread1Thread1of1ForFork1_~i~0 + 1*~N1~0 Supporting invariants [] [2022-07-26 13:34:15,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-26 13:34:15,988 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:34:16,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:34:16,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:34:16,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:34:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:34:16,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-26 13:34:16,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:34:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:34:16,147 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-26 13:34:16,149 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 454 states, but on-demand construction may add more states Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-07-26 13:34:16,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 454 states, but on-demand construction may add more states. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) Result 1497 states and 4309 transitions. Complement of second has 9 states. [2022-07-26 13:34:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-26 13:34:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-07-26 13:34:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2022-07-26 13:34:16,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 212 transitions. Stem has 32 letters. Loop has 5 letters. [2022-07-26 13:34:16,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:16,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 212 transitions. Stem has 37 letters. Loop has 5 letters. [2022-07-26 13:34:16,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:16,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 212 transitions. Stem has 32 letters. Loop has 10 letters. [2022-07-26 13:34:16,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:16,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1497 states and 4309 transitions. [2022-07-26 13:34:16,302 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 195 [2022-07-26 13:34:16,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1497 states to 644 states and 1802 transitions. [2022-07-26 13:34:16,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 346 [2022-07-26 13:34:16,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 465 [2022-07-26 13:34:16,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 644 states and 1802 transitions. [2022-07-26 13:34:16,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-26 13:34:16,320 INFO L220 hiAutomatonCegarLoop]: Abstraction has 644 states and 1802 transitions. [2022-07-26 13:34:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states and 1802 transitions. [2022-07-26 13:34:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 527. [2022-07-26 13:34:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 527 states have (on average 2.7836812144212524) internal successors, (1467), 526 states have internal predecessors, (1467), 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) [2022-07-26 13:34:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 1467 transitions. [2022-07-26 13:34:16,382 INFO L242 hiAutomatonCegarLoop]: Abstraction has 527 states and 1467 transitions. [2022-07-26 13:34:16,382 INFO L426 stractBuchiCegarLoop]: Abstraction has 527 states and 1467 transitions. [2022-07-26 13:34:16,383 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-26 13:34:16,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 527 states and 1467 transitions. [2022-07-26 13:34:16,385 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 195 [2022-07-26 13:34:16,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:34:16,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:34:16,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-26 13:34:16,387 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-26 13:34:16,388 INFO L733 eck$LassoCheckResult]: Stem: 3686#[ULTIMATE.startENTRY]don't care [200] ULTIMATE.startENTRY-->L-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3632#[L-1]don't care [182] 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] 3634#[L-1-1]don't care [205] L-1-1-->L-1-2: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 3690#[L-1-2]don't care [207] L-1-2-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 3386#[L21]don't care [177] L21-->L21-1: Formula: (and (= (select |v_#valid_2| 1) 1) (= 2 (select |v_#length_1| 1))) InVars {#length=|v_#length_1|, #valid=|v_#valid_2|} OutVars{#length=|v_#length_1|, #valid=|v_#valid_2|} AuxVars[] AssignedVars[] 3388#[L21-1]don't care [195] L21-1-->L21-2: Formula: (= 48 (select (select |v_#memory_int_1| 1) 0)) InVars {#memory_int=|v_#memory_int_1|} OutVars{#memory_int=|v_#memory_int_1|} AuxVars[] AssignedVars[] 3644#[L21-2]don't care [193] L21-2-->L21-3: Formula: (= (select (select |v_#memory_int_2| 1) 1) 0) InVars {#memory_int=|v_#memory_int_2|} OutVars{#memory_int=|v_#memory_int_2|} AuxVars[] AssignedVars[] 3646#[L21-3]don't care [163] L21-3-->L21-4: Formula: (and (= (select |v_#length_2| 2) 25) (= (select |v_#valid_3| 2) 1)) InVars {#length=|v_#length_2|, #valid=|v_#valid_3|} OutVars{#length=|v_#length_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[] 3200#[L21-4]don't care [216] L21-4-->L38: Formula: (= 0 v_~N1~0_3) InVars {} OutVars{~N1~0=v_~N1~0_3} AuxVars[] AssignedVars[~N1~0] 3202#[L38]don't care [217] L38-->L38-1: Formula: (= 0 v_~N2~0_3) InVars {} OutVars{~N2~0=v_~N2~0_3} AuxVars[] AssignedVars[~N2~0] 3660#[L38-1]don't care [164] L38-1-->L-1-3: Formula: (= v_~counter~0_6 0) InVars {} OutVars{~counter~0=v_~counter~0_6} AuxVars[] AssignedVars[~counter~0] 3670#[L-1-3]don't care [210] L-1-3-->L-1-4: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3044#[L-1-4]don't care [190] L-1-4-->L-1-5: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3046#[L-1-5]don't care [158] L-1-5-->L-1-6: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 3570#[L-1-6]don't care [188] L-1-6-->L62: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#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_1|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~mem12#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 3680#[L62]don't care [211] L62-->L62-1: Formula: (and (= |v_ULTIMATE.start_main_~#t1~0#1.offset_2| 0) (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) (= |v_#length_3| (store |v_#length_4| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 4)) (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_2| 0)) (= (store |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 1) |v_#valid_4|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_4|, #valid=|v_#valid_5|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 3654#[L62-1]don't care [198] L62-1-->L62-2: Formula: (and (= |v_#length_5| (store |v_#length_6| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 4)) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2|) 0) (= (store |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 1) |v_#valid_6|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_2| 0)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_2|) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_2|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_6|, #valid=|v_#valid_7|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_5|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_2|, #valid=|v_#valid_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 3610#[L62-2]don't care [176] L62-2-->L64: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_2| v_~N1~0_4) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|, ~N1~0=v_~N1~0_4} AuxVars[] AssignedVars[~N1~0] 3592#[L64]don't care [165] L64-->L65: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 3594#[L65]don't care [222] L65-->L65-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet6#1_2| v_~N2~0_4) InVars {ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|, ~N2~0=v_~N2~0_4} AuxVars[] AssignedVars[~N2~0] 3132#[L65-1]don't care [202] L65-1-->L67: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 3134#[L67]don't care [199] L67-->L67-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3358#[L67-1]don't care [170] L67-1-->L67-2: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1| (ite (and (<= 0 v_~N1~0_5) (<= 0 v_~N2~0_5)) 1 0)) InVars {~N1~0=v_~N1~0_5, ~N2~0=v_~N2~0_5} OutVars{~N1~0=v_~N1~0_5, ~N2~0=v_~N2~0_5, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond#1] 3360#[L67-2]don't care [157] L67-2-->L34: Formula: true InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 3568#[L34]don't care [173] L34-->L35: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2| |v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 3606#[L35]don't care [197] L35-->L34-1: Formula: (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_4| 0)) InVars {ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} AuxVars[] AssignedVars[] 3682#[L34-1]don't care [191] L34-1-->L70: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 3214#[L70]don't care [220] L70-->L70-1: Formula: (= |v_ULTIMATE.start_main_#t~pre7#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 3216#[L70-1]don't care [174] L70-1-->L70-2: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 3602#[L70-2]don't care [172] L70-2-->L70-3: Formula: (and (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_3|) (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) 1) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|)) (= (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) |v_ULTIMATE.start_main_~#t1~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre7#1_3|)) |v_#memory_int_3|)) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} OutVars{#valid=|v_#valid_8|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 3604#[L70-3]don't care [249] L70-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork1_thidvar0_2) (= 0 v_thread1Thread1of1ForFork1_thidvar1_2)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork1_#res.base=|v_thread1Thread1of1ForFork1_#res.base_4|, thread1Thread1of1ForFork1_#t~post1=|v_thread1Thread1of1ForFork1_#t~post1_8|, thread1Thread1of1ForFork1_#t~post2=|v_thread1Thread1of1ForFork1_#t~post2_4|, thread1Thread1of1ForFork1_~i~0=v_thread1Thread1of1ForFork1_~i~0_12, thread1Thread1of1ForFork1_#res.offset=|v_thread1Thread1of1ForFork1_#res.offset_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|, thread1Thread1of1ForFork1_thidvar1=v_thread1Thread1of1ForFork1_thidvar1_2, thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#res.base, thread1Thread1of1ForFork1_#t~post1, thread1Thread1of1ForFork1_#t~post2, thread1Thread1of1ForFork1_~i~0, thread1Thread1of1ForFork1_#res.offset, thread1Thread1of1ForFork1_thidvar1, thread1Thread1of1ForFork1_thidvar0] 3650#[L70-4, thread1ENTRY]don't care [159] L70-4-->L70-5: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 3578#[L70-5, thread1ENTRY]don't care [201] L70-5-->L71: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1] 3582#[L71, thread1ENTRY]don't care [146] L71-->L71-1: Formula: (= |v_ULTIMATE.start_main_#t~pre9#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre9#1] 2754#[L71-1, thread1ENTRY]don't care [167] L71-1-->L71-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 2758#[L71-2, thread1ENTRY]don't care [206] L71-2-->L71-3: Formula: (and (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|) (select |v_#length_8| |v_ULTIMATE.start_main_~#t2~0#1.base_3|)) (= (select |v_#valid_9| |v_ULTIMATE.start_main_~#t2~0#1.base_3|) 1) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|) (= (store |v_#memory_int_6| |v_ULTIMATE.start_main_~#t2~0#1.base_3| (store (select |v_#memory_int_6| |v_ULTIMATE.start_main_~#t2~0#1.base_3|) |v_ULTIMATE.start_main_~#t2~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre9#1_3|)) |v_#memory_int_5|)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_3|, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_6|, #length=|v_#length_8|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_3|} OutVars{ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_3|, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_5|, #length=|v_#length_8|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_3|} AuxVars[] AssignedVars[#memory_int] 3060#[L71-3, thread1ENTRY]don't care [246] L71-3-->thread2ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread2Thread1of1ForFork0_thidvar0_2) (= v_thread2Thread1of1ForFork0_thidvar2_2 0) (= v_thread2Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|} OutVars{thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_4|, thread2Thread1of1ForFork0_#res#1.base=|v_thread2Thread1of1ForFork0_#res#1.base_4|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, thread2Thread1of1ForFork0_#res#1.offset=|v_thread2Thread1of1ForFork0_#res#1.offset_4|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_4|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_2, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_12|, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_8|, thread2Thread1of1ForFork0_#t~post4#1=|v_thread2Thread1of1ForFork0_#t~post4#1_4|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#res#1.base, thread2Thread1of1ForFork0_#res#1.offset, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_thidvar2, thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_~i~1#1, thread2Thread1of1ForFork0_thidvar0, thread2Thread1of1ForFork0_#t~post3#1, thread2Thread1of1ForFork0_#t~post4#1] 2808#[thread2ENTRY, thread1ENTRY, L71-4]don't care [234] thread2ENTRY-->L51-4: Formula: (= |v_thread2Thread1of1ForFork0_~i~1#1_1| 0) InVars {} OutVars{thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_~i~1#1] 2812#[thread1ENTRY, L51-4, L71-4]don't care [2022-07-26 13:34:16,389 INFO L735 eck$LassoCheckResult]: Loop: 2812#[thread1ENTRY, L51-4, L71-4]don't care [237] L51-4-->L52: Formula: (< |v_thread2Thread1of1ForFork0_~i~1#1_5| v_~N2~0_2) InVars {thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_5|, ~N2~0=v_~N2~0_2} OutVars{thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_5|, ~N2~0=v_~N2~0_2} AuxVars[] AssignedVars[] 2964#[L52, thread1ENTRY, L71-4]don't care [239] L52-->L55: Formula: (and (not (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_1| 0)) (= (+ v_~counter~0_38 1) v_~counter~0_39) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_1| |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_1|) (= (ite (< 0 v_~counter~0_39) 1 0) |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_1|)) InVars {~counter~0=v_~counter~0_39} OutVars{thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_1|, ~counter~0=v_~counter~0_38, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_1|, thread2Thread1of1ForFork0_#t~post4#1=|v_thread2Thread1of1ForFork0_#t~post4#1_1|} AuxVars[] AssignedVars[~counter~0, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_#t~post4#1] 3020#[L55, thread1ENTRY, L71-4]don't care [241] L55-->L51-2: Formula: (= |v_thread2Thread1of1ForFork0_~i~1#1_7| |v_thread2Thread1of1ForFork0_#t~post3#1_1|) InVars {thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_7|} OutVars{thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_7|, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~post3#1] 3540#[L51-2, thread1ENTRY, L71-4]don't care [242] L51-2-->L51-3: Formula: (= (+ |v_thread2Thread1of1ForFork0_#t~post3#1_3| 1) |v_thread2Thread1of1ForFork0_~i~1#1_9|) InVars {thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_3|} OutVars{thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_9|, thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_~i~1#1] 3458#[thread1ENTRY, L51-3, L71-4]don't care [243] L51-3-->L51-4: Formula: true InVars {} OutVars{thread2Thread1of1ForFork0_#t~post3#1=|v_thread2Thread1of1ForFork0_#t~post3#1_5|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~post3#1] 2812#[thread1ENTRY, L51-4, L71-4]don't care [2022-07-26 13:34:16,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash 249170171, now seen corresponding path program 1 times [2022-07-26 13:34:16,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:16,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183908464] [2022-07-26 13:34:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:16,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:16,426 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:34:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:16,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:34:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash 254863023, now seen corresponding path program 1 times [2022-07-26 13:34:16,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:16,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538715139] [2022-07-26 13:34:16,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:16,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:16,464 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:34:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:34:16,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:34:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1980274187, now seen corresponding path program 1 times [2022-07-26 13:34:16,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:34:16,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33133047] [2022-07-26 13:34:16,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:34:16,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:34:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:34:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:34:16,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-26 13:34:16,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33133047] [2022-07-26 13:34:16,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33133047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-26 13:34:16,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-26 13:34:16,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-26 13:34:16,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610078431] [2022-07-26 13:34:16,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-26 13:34:16,615 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:34:16,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:34:16,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:34:16,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:34:16,616 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-26 13:34:16,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:34:16,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:34:16,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:34:16,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:34:16,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:34:16,617 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,619 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,624 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,626 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,629 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,631 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,634 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,636 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,638 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:16,693 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:34:16,693 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-26 13:34:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:16,695 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2022-07-26 13:34:16,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-26 13:34:16,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:16,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:16,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:34:16,719 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_#t~post4#1=0} Honda state: {thread2Thread1of1ForFork0_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:34:16,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-26 13:34:16,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:16,784 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2022-07-26 13:34:16,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-26 13:34:16,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:16,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:16,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:34:16,802 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_3=-1} Honda state: {v_rep#funAddr~thread1.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:34:16,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-26 13:34:16,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:16,819 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2022-07-26 13:34:16,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-26 13:34:16,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:16,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:16,835 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-26 13:34:16,836 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.base_3=-1} Honda state: {v_rep#funAddr~thread2.base_3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-26 13:34:16,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:16,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:16,852 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2022-07-26 13:34:16,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-26 13:34:16,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-26 13:34:16,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:16,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:16,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:16,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:16,901 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2022-07-26 13:34:16,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-26 13:34:16,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-26 13:34:16,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-26 13:34:17,158 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-26 13:34:17,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-26 13:34:17,164 INFO L210 LassoAnalysis]: Preferences: [2022-07-26 13:34:17,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-26 13:34:17,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-26 13:34:17,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-26 13:34:17,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-26 13:34:17,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-26 13:34:17,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-26 13:34:17,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-figure1-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-26 13:34:17,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-26 13:34:17,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-26 13:34:17,165 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,168 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,170 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,171 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,175 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,176 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,179 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,181 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,182 INFO L142 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-26 13:34:17,252 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-26 13:34:17,252 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-26 13:34:17,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:17,253 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2022-07-26 13:34:17,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-26 13:34:17,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:17,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:17,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:34:17,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:17,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:17,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:17,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:34:17,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:34:17,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:34:17,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:17,301 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2022-07-26 13:34:17,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-26 13:34:17,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:17,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:17,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:17,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:17,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:17,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:34:17,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:34:17,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:34:17,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:17,361 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2022-07-26 13:34:17,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-26 13:34:17,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:17,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:17,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:17,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:17,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:17,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-26 13:34:17,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-26 13:34:17,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-26 13:34:17,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:17,440 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2022-07-26 13:34:17,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-26 13:34:17,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-26 13:34:17,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-26 13:34:17,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-26 13:34:17,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-26 13:34:17,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-26 13:34:17,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-26 13:34:17,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-26 13:34:17,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-26 13:34:17,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-26 13:34:17,477 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-26 13:34:17,477 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-26 13:34:17,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:34:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:34:17,480 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2022-07-26 13:34:17,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-26 13:34:17,481 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-26 13:34:17,481 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-26 13:34:17,482 INFO L513 LassoAnalysis]: Proved termination. [2022-07-26 13:34:17,482 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork0_~i~1#1, ~N2~0) = -1*thread2Thread1of1ForFork0_~i~1#1 + 1*~N2~0 Supporting invariants [] [2022-07-26 13:34:17,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-26 13:34:17,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:34:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:34:17,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-26 13:34:17,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:34:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-26 13:34:17,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-26 13:34:17,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-26 13:34:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-26 13:34:17,645 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-26 13:34:17,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 1467 transitions. cyclomatic complexity: 993 Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-07-26 13:34:17,703 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 1467 transitions. cyclomatic complexity: 993. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) Result 1319 states and 4124 transitions. Complement of second has 8 states. [2022-07-26 13:34:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-26 13:34:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-07-26 13:34:17,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2022-07-26 13:34:17,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 120 transitions. Stem has 38 letters. Loop has 5 letters. [2022-07-26 13:34:17,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:17,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 120 transitions. Stem has 43 letters. Loop has 5 letters. [2022-07-26 13:34:17,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:17,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 120 transitions. Stem has 38 letters. Loop has 10 letters. [2022-07-26 13:34:17,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-26 13:34:17,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1319 states and 4124 transitions. [2022-07-26 13:34:17,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,787 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:34:17,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1319 states to 0 states and 0 transitions. [2022-07-26 13:34:17,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 13:34:17,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 13:34:17,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 13:34:17,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 13:34:17,787 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:34:17,787 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:34:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-26 13:34:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-26 13:34:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-26 13:34:17,790 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-07-26 13:34:17,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-26 13:34:17,801 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-26 13:34:17,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-26 13:34:17,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:34:17,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-26 13:34:17,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-26 13:34:17,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-26 13:34:17,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-26 13:34:17,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-26 13:34:17,802 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:34:17,802 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:34:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-26 13:34:17,803 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-26 13:34:17,803 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-26 13:34:17,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-26 13:34:17,803 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:34:17,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 13:34:17,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-26 13:34:17,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:34:17 BoogieIcfgContainer [2022-07-26 13:34:17,811 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 13:34:17,812 INFO L158 Benchmark]: Toolchain (without parser) took 3466.49ms. Allocated memory was 221.2MB in the beginning and 277.9MB in the end (delta: 56.6MB). Free memory was 168.2MB in the beginning and 236.8MB in the end (delta: -68.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:34:17,812 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory is still 184.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:34:17,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.60ms. Allocated memory is still 221.2MB. Free memory was 168.1MB in the beginning and 194.8MB in the end (delta: -26.7MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2022-07-26 13:34:17,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.81ms. Allocated memory is still 221.2MB. Free memory was 194.8MB in the beginning and 193.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 13:34:17,813 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 221.2MB. Free memory was 193.1MB in the beginning and 192.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 13:34:17,813 INFO L158 Benchmark]: RCFGBuilder took 297.26ms. Allocated memory is still 221.2MB. Free memory was 192.0MB in the beginning and 178.7MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-07-26 13:34:17,813 INFO L158 Benchmark]: BuchiAutomizer took 2916.88ms. Allocated memory was 221.2MB in the beginning and 277.9MB in the end (delta: 56.6MB). Free memory was 178.4MB in the beginning and 236.8MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:34:17,815 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 221.2MB. Free memory is still 184.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.60ms. Allocated memory is still 221.2MB. Free memory was 168.1MB in the beginning and 194.8MB in the end (delta: -26.7MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.81ms. Allocated memory is still 221.2MB. Free memory was 194.8MB in the beginning and 193.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 221.2MB. Free memory was 193.1MB in the beginning and 192.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 297.26ms. Allocated memory is still 221.2MB. Free memory was 192.0MB in the beginning and 178.7MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2916.88ms. Allocated memory was 221.2MB in the beginning and 277.9MB in the end (delta: 56.6MB). Free memory was 178.4MB in the beginning and 236.8MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N1 and consists of 6 locations. One deterministic module has affine ranking function N2 + -1 * i and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 117 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 408 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 197 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax229 hnf100 lsp23 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-26 13:34:17,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...