/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-semanticLbe.epf -i ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:24:36,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:24:36,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:24:36,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:24:36,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:24:36,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:24:36,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:24:36,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:24:36,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:24:36,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:24:36,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:24:36,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:24:36,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:24:36,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:24:36,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:24:36,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:24:36,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:24:36,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:24:36,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:24:36,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:24:36,643 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:24:36,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:24:36,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:24:36,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:24:36,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:24:36,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:24:36,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:24:36,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:24:36,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:24:36,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:24:36,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:24:36,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:24:36,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:24:36,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:24:36,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:24:36,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:24:36,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:24:36,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:24:36,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:24:36,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:24:36,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:24:36,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:24:36,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-22 12:24:36,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:24:36,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:24:36,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:24:36,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:24:36,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:24:36,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:24:36,695 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:24:36,695 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:24:36,696 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:24:36,696 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:24:36,696 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:24:36,696 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:24:36,696 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:24:36,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:24:36,697 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:24:36,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:24:36,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:24:36,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:24:36,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:24:36,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:24:36,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:24:36,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:24:36,698 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:24:36,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:24:36,699 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:24:36,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:24:36,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:24:36,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:24:36,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:24:36,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:24:36,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:24:36,701 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:24:36,702 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:24:37,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:24:37,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:24:37,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:24:37,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:24:37,126 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:24:37,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-07-22 12:24:37,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd55b884/256a0dcf99774b2a82e60da92227d990/FLAG6157a59bd [2022-07-22 12:24:37,883 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:24:37,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-07-22 12:24:37,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd55b884/256a0dcf99774b2a82e60da92227d990/FLAG6157a59bd [2022-07-22 12:24:38,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd55b884/256a0dcf99774b2a82e60da92227d990 [2022-07-22 12:24:38,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:24:38,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:24:38,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:24:38,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:24:38,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:24:38,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f01bd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38, skipping insertion in model container [2022-07-22 12:24:38,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:24:38,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:24:38,469 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-07-22 12:24:38,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:24:38,479 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:24:38,500 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-07-22 12:24:38,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:24:38,520 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:24:38,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38 WrapperNode [2022-07-22 12:24:38,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:24:38,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:24:38,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:24:38,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:24:38,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,568 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-07-22 12:24:38,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:24:38,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:24:38,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:24:38,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:24:38,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:24:38,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:24:38,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:24:38,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:24:38,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (1/1) ... [2022-07-22 12:24:38,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:38,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:38,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:38,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 12:24:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:24:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:24:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:24:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:24:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:24:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:24:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:24:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:24:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:24:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:24:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:24:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:24:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:24:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:24:38,725 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 12:24:38,831 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:24:38,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:24:39,094 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:24:39,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:24:39,172 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 12:24:39,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:24:39 BoogieIcfgContainer [2022-07-22 12:24:39,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:24:39,185 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:24:39,186 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:24:39,189 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:24:39,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:24:39,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:24:38" (1/3) ... [2022-07-22 12:24:39,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d48e590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:24:39, skipping insertion in model container [2022-07-22 12:24:39,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:24:39,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:24:38" (2/3) ... [2022-07-22 12:24:39,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d48e590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:24:39, skipping insertion in model container [2022-07-22 12:24:39,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:24:39,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:24:39" (3/3) ... [2022-07-22 12:24:39,195 INFO L322 chiAutomizerObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-07-22 12:24:39,306 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:24:39,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 85 transitions, 186 flow [2022-07-22 12:24:39,390 INFO L129 PetriNetUnfolder]: 6/81 cut-off events. [2022-07-22 12:24:39,390 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:24:39,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 6/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-22 12:24:39,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 85 transitions, 186 flow [2022-07-22 12:24:39,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 174 flow [2022-07-22 12:24:39,422 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:24:39,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 81 transitions, 174 flow [2022-07-22 12:24:39,449 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 81 transitions, 174 flow [2022-07-22 12:24:39,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 81 transitions, 174 flow [2022-07-22 12:24:39,499 INFO L129 PetriNetUnfolder]: 6/81 cut-off events. [2022-07-22 12:24:39,499 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:24:39,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 6/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-22 12:24:39,505 INFO L116 LiptonReduction]: Number of co-enabled transitions 404 [2022-07-22 12:24:42,491 INFO L131 LiptonReduction]: Checked pairs total: 457 [2022-07-22 12:24:42,491 INFO L133 LiptonReduction]: Total number of compositions: 75 [2022-07-22 12:24:42,519 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:24:42,519 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:24:42,520 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:24:42,520 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:24:42,520 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:24:42,520 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:24:42,520 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:24:42,521 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:24:42,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:24:42,571 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-22 12:24:42,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:24:42,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:24:42,579 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 12:24:42,580 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 12:24:42,582 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 12:24:42,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 33 states, but on-demand construction may add more states [2022-07-22 12:24:42,593 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 14 [2022-07-22 12:24:42,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:24:42,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:24:42,594 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 12:24:42,594 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 12:24:42,600 INFO L748 eck$LassoCheckResult]: Stem: 87#[ULTIMATE.startENTRY]don't care [311] ULTIMATE.startENTRY-->L72-3: Formula: (let ((.cse0 (select |v_#memory_int_48| 1)) (.cse1 (store |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 1))) (and (= |v_#NULL.offset_6| 0) (= (select |v_#valid_93| 1) 1) (= |v_#memory_int_47| (store |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49| (store (select |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_29|))) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t2~0#1.base_49|) (= (select .cse0 0) 48) (= |v_#NULL.base_6| 0) (= (store (store |v_#length_62| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_49| 4) |v_#length_61|) (= (select |v_#length_62| 2) 34) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_39| 0) (= (select |v_#valid_93| 0) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| 0)) (= (select |v_#valid_93| 2) 1) (= (ite (and (< 0 v_~M1~0_53) (< 0 v_~M2~0_51)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49| 1) |v_#valid_92|) (= (select .cse0 1) 0) (= 2 (select |v_#length_62| 1)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49|) 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) (= |v_#pthreadsForks_31| (+ |v_#pthreadsForks_32| 1)) (< 0 |v_#StackHeapBarrier_20|) (= (select |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_29| |v_#pthreadsForks_32|) (= v_~counter~0_67 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_20|, #pthreadsForks=|v_#pthreadsForks_32|, #valid=|v_#valid_93|, #memory_int=|v_#memory_int_48|, #length=|v_#length_62|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_39|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_27|, #NULL.offset=|v_#NULL.offset_6|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_32|, #pthreadsForks=|v_#pthreadsForks_31|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_59|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_29|, #length=|v_#length_61|, ~M1~0=v_~M1~0_53, ~counter~0=v_~counter~0_67, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_19|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_26|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_49|, #NULL.base=|v_#NULL.base_6|, #StackHeapBarrier=|v_#StackHeapBarrier_20|, ~M2~0=v_~M2~0_51, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_92|, #memory_int=|v_#memory_int_47|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_49|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ~M2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ~M1~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 90#[L72-3]don't care [231] L72-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 92#[thread1ENTRY, L72-4]don't care [212] thread1ENTRY-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 94#[L41-4, L72-4]don't care [2022-07-22 12:24:42,601 INFO L750 eck$LassoCheckResult]: Loop: 94#[L41-4, L72-4]don't care [296] L41-4-->L41-4: Formula: (and (< v_thread1Thread1of1ForFork0_~i~0_28 v_~M1~0_35) (= (+ v_~counter~0_54 1) v_~counter~0_53) (= (+ v_thread1Thread1of1ForFork0_~i~0_28 1) v_thread1Thread1of1ForFork0_~i~0_27)) InVars {~counter~0=v_~counter~0_54, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_28, ~M1~0=v_~M1~0_35} OutVars{~counter~0=v_~counter~0_53, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_17|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_9|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_27, ~M1~0=v_~M1~0_35} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0] 94#[L41-4, L72-4]don't care [2022-07-22 12:24:42,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash 336035, now seen corresponding path program 1 times [2022-07-22 12:24:42,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:42,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468053113] [2022-07-22 12:24:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:42,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:42,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:42,811 INFO L85 PathProgramCache]: Analyzing trace with hash 327, now seen corresponding path program 1 times [2022-07-22 12:24:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:42,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960787956] [2022-07-22 12:24:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,820 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:42,829 INFO L85 PathProgramCache]: Analyzing trace with hash 10417381, now seen corresponding path program 1 times [2022-07-22 12:24:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842513093] [2022-07-22 12:24:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:42,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:42,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:42,941 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:42,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:42,942 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:42,942 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:42,943 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 12:24:42,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:42,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:42,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:42,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-22 12:24:42,944 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:42,944 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:42,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:42,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,054 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:43,055 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 12:24:43,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:43,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:43,061 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) [2022-07-22 12:24:43,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:43,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:43,086 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 [2022-07-22 12:24:43,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:43,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:43,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:43,140 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) [2022-07-22 12:24:43,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 12:24:43,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:43,152 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 [2022-07-22 12:24:43,296 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 12:24:43,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-22 12:24:43,302 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:43,303 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:43,303 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:43,303 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:43,303 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 12:24:43,303 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:43,303 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:43,303 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:43,303 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2022-07-22 12:24:43,304 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:43,304 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:43,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:43,393 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:43,399 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 12:24:43,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:43,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:43,402 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) [2022-07-22 12:24:43,412 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 [2022-07-22 12:24:43,412 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 [2022-07-22 12:24:43,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:43,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:43,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:43,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:43,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:43,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:43,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:43,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 12:24:43,448 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 12:24:43,449 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 12:24:43,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:43,455 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) [2022-07-22 12:24:43,460 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 [2022-07-22 12:24:43,461 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 12:24:43,461 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 12:24:43,462 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 12:24:43,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~M1~0, thread1Thread1of1ForFork0_~i~0) = 1*~M1~0 - 1*thread1Thread1of1ForFork0_~i~0 Supporting invariants [] [2022-07-22 12:24:43,553 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 [2022-07-22 12:24:43,557 INFO L257 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 12:24:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:43,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:24:43,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:43,660 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:24:43,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:24:43,706 INFO L142 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 12:24:43,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 33 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-22 12:24:43,803 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 33 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 63 states and 161 transitions. Complement of second has 3 states. [2022-07-22 12:24:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-07-22 12:24:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-07-22 12:24:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 10 transitions. [2022-07-22 12:24:43,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-22 12:24:43,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:43,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-22 12:24:43,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:43,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 10 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-22 12:24:43,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:43,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 161 transitions. [2022-07-22 12:24:43,833 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2022-07-22 12:24:43,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 52 states and 135 transitions. [2022-07-22 12:24:43,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-07-22 12:24:43,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-07-22 12:24:43,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 135 transitions. [2022-07-22 12:24:43,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 12:24:43,847 INFO L220 hiAutomatonCegarLoop]: Abstraction has 52 states and 135 transitions. [2022-07-22 12:24:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 135 transitions. [2022-07-22 12:24:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2022-07-22 12:24:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 2.6) internal successors, (104), 39 states have internal predecessors, (104), 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) [2022-07-22 12:24:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 104 transitions. [2022-07-22 12:24:43,882 INFO L242 hiAutomatonCegarLoop]: Abstraction has 40 states and 104 transitions. [2022-07-22 12:24:43,883 INFO L425 stractBuchiCegarLoop]: Abstraction has 40 states and 104 transitions. [2022-07-22 12:24:43,883 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 12:24:43,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 104 transitions. [2022-07-22 12:24:43,884 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2022-07-22 12:24:43,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:24:43,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:24:43,885 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 12:24:43,885 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 12:24:43,886 INFO L748 eck$LassoCheckResult]: Stem: 293#[ULTIMATE.startENTRY]don't care [311] ULTIMATE.startENTRY-->L72-3: Formula: (let ((.cse0 (select |v_#memory_int_48| 1)) (.cse1 (store |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 1))) (and (= |v_#NULL.offset_6| 0) (= (select |v_#valid_93| 1) 1) (= |v_#memory_int_47| (store |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49| (store (select |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_29|))) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t2~0#1.base_49|) (= (select .cse0 0) 48) (= |v_#NULL.base_6| 0) (= (store (store |v_#length_62| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_49| 4) |v_#length_61|) (= (select |v_#length_62| 2) 34) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_39| 0) (= (select |v_#valid_93| 0) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| 0)) (= (select |v_#valid_93| 2) 1) (= (ite (and (< 0 v_~M1~0_53) (< 0 v_~M2~0_51)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49| 1) |v_#valid_92|) (= (select .cse0 1) 0) (= 2 (select |v_#length_62| 1)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49|) 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) (= |v_#pthreadsForks_31| (+ |v_#pthreadsForks_32| 1)) (< 0 |v_#StackHeapBarrier_20|) (= (select |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_29| |v_#pthreadsForks_32|) (= v_~counter~0_67 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_20|, #pthreadsForks=|v_#pthreadsForks_32|, #valid=|v_#valid_93|, #memory_int=|v_#memory_int_48|, #length=|v_#length_62|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_39|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_27|, #NULL.offset=|v_#NULL.offset_6|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_32|, #pthreadsForks=|v_#pthreadsForks_31|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_59|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_29|, #length=|v_#length_61|, ~M1~0=v_~M1~0_53, ~counter~0=v_~counter~0_67, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_19|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_26|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_49|, #NULL.base=|v_#NULL.base_6|, #StackHeapBarrier=|v_#StackHeapBarrier_20|, ~M2~0=v_~M2~0_51, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_92|, #memory_int=|v_#memory_int_47|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_49|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ~M2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ~M1~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 285#[L72-3]don't care [231] L72-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 247#[thread1ENTRY, L72-4]don't care [212] thread1ENTRY-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 249#[L41-4, L72-4]don't care [300] L72-4-->L73-3: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_19| |v_#pthreadsForks_24|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_27|) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_27| 4) (select |v_#length_45| |v_ULTIMATE.start_main_~#t2~0#1.base_33|)) (= (select |v_#valid_68| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) 1) (= (store |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33| (store (select |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) |v_ULTIMATE.start_main_~#t2~0#1.offset_27| |v_ULTIMATE.start_main_#t~pre9#1_19|)) |v_#memory_int_35|) (= |v_#pthreadsForks_23| (+ |v_#pthreadsForks_24| 1))) InVars {#pthreadsForks=|v_#pthreadsForks_24|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_36|, #length=|v_#length_45|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} OutVars{#pthreadsForks=|v_#pthreadsForks_23|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_19|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_11|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_35|, #length=|v_#length_45|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_19|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} AuxVars[] AssignedVars[#pthreadsForks, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#t~nondet8#1, #memory_int, ULTIMATE.start_main_#t~pre7#1] 277#[L41-4, L73-3]don't care [2022-07-22 12:24:43,886 INFO L750 eck$LassoCheckResult]: Loop: 277#[L41-4, L73-3]don't care [296] L41-4-->L41-4: Formula: (and (< v_thread1Thread1of1ForFork0_~i~0_28 v_~M1~0_35) (= (+ v_~counter~0_54 1) v_~counter~0_53) (= (+ v_thread1Thread1of1ForFork0_~i~0_28 1) v_thread1Thread1of1ForFork0_~i~0_27)) InVars {~counter~0=v_~counter~0_54, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_28, ~M1~0=v_~M1~0_35} OutVars{~counter~0=v_~counter~0_53, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_17|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_9|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_27, ~M1~0=v_~M1~0_35} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0] 277#[L41-4, L73-3]don't care [2022-07-22 12:24:43,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:43,887 INFO L85 PathProgramCache]: Analyzing trace with hash 10417385, now seen corresponding path program 1 times [2022-07-22 12:24:43,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:43,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020076751] [2022-07-22 12:24:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:43,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:43,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:43,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 327, now seen corresponding path program 2 times [2022-07-22 12:24:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:43,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728115645] [2022-07-22 12:24:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:43,945 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:43,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:43,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash 322939231, now seen corresponding path program 1 times [2022-07-22 12:24:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:43,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226720272] [2022-07-22 12:24:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:44,011 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:44,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:44,079 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:44,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:44,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:44,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:44,080 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 12:24:44,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:44,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:44,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-22 12:24:44,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:44,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:44,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:44,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:44,194 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 12:24:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,201 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) [2022-07-22 12:24:44,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:44,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,219 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 [2022-07-22 12:24:44,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:44,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post1=0} Honda state: {thread1Thread1of1ForFork0_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:44,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:44,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,272 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) [2022-07-22 12:24:44,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:44,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,292 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 [2022-07-22 12:24:44,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:44,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_3=1} Honda state: {v_rep#funAddr~thread2.offset_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:44,334 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 [2022-07-22 12:24:44,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,336 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) [2022-07-22 12:24:44,337 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 [2022-07-22 12:24:44,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:44,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,356 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:44,356 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: [] [2022-07-22 12:24:44,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:44,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,381 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) [2022-07-22 12:24:44,382 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 [2022-07-22 12:24:44,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:44,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,400 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:44,400 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: [] [2022-07-22 12:24:44,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:44,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,425 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) [2022-07-22 12:24:44,427 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 [2022-07-22 12:24:44,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:44,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-22 12:24:44,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,465 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) [2022-07-22 12:24:44,468 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 [2022-07-22 12:24:44,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 12:24:44,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:44,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 12:24:44,648 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 [2022-07-22 12:24:44,648 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:44,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:44,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:44,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:44,649 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 12:24:44,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:44,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:44,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration2_Loop [2022-07-22 12:24:44,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:44,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:44,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:44,730 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:44,731 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 12:24:44,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,732 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) [2022-07-22 12:24:44,741 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 [2022-07-22 12:24:44,742 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 [2022-07-22 12:24:44,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:44,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:44,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:44,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:44,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:44,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:44,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:44,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:44,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:44,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,813 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) [2022-07-22 12:24:44,818 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 [2022-07-22 12:24:44,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:44,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:44,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:44,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:44,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 12:24:44,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 12:24:44,837 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 [2022-07-22 12:24:44,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:44,886 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 [2022-07-22 12:24:44,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,888 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) [2022-07-22 12:24:44,894 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 [2022-07-22 12:24:44,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:44,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:44,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:44,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:44,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 12:24:44,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 12:24:44,911 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 [2022-07-22 12:24:44,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:44,963 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 [2022-07-22 12:24:44,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:44,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:44,965 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) [2022-07-22 12:24:44,971 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 [2022-07-22 12:24:44,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:44,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:44,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:44,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:44,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:44,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:44,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:44,986 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 [2022-07-22 12:24:44,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 12:24:45,000 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 12:24:45,001 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 12:24:45,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,003 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) [2022-07-22 12:24:45,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 12:24:45,011 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 12:24:45,011 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 12:24:45,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_~i~0, ~M1~0) = -1*thread1Thread1of1ForFork0_~i~0 + 1*~M1~0 Supporting invariants [] [2022-07-22 12:24:45,026 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 [2022-07-22 12:24:45,045 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 [2022-07-22 12:24:45,046 INFO L257 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 12:24:45,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:45,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:24:45,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:45,088 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:24:45,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:24:45,089 INFO L142 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 12:24:45,090 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 104 transitions. cyclomatic complexity: 84 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:24:45,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 104 transitions. cyclomatic complexity: 84. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 115 transitions. Complement of second has 3 states. [2022-07-22 12:24:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-07-22 12:24:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:24:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2022-07-22 12:24:45,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-22 12:24:45,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:45,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-22 12:24:45,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:45,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 12:24:45,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:45,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 115 transitions. [2022-07-22 12:24:45,120 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2022-07-22 12:24:45,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 115 transitions. [2022-07-22 12:24:45,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-07-22 12:24:45,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2022-07-22 12:24:45,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 115 transitions. [2022-07-22 12:24:45,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 12:24:45,123 INFO L220 hiAutomatonCegarLoop]: Abstraction has 45 states and 115 transitions. [2022-07-22 12:24:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 115 transitions. [2022-07-22 12:24:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-07-22 12:24:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 2.58974358974359) internal successors, (101), 38 states have internal predecessors, (101), 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) [2022-07-22 12:24:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 101 transitions. [2022-07-22 12:24:45,129 INFO L242 hiAutomatonCegarLoop]: Abstraction has 39 states and 101 transitions. [2022-07-22 12:24:45,129 INFO L425 stractBuchiCegarLoop]: Abstraction has 39 states and 101 transitions. [2022-07-22 12:24:45,130 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 12:24:45,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 101 transitions. [2022-07-22 12:24:45,131 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2022-07-22 12:24:45,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:24:45,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:24:45,132 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 12:24:45,132 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 12:24:45,133 INFO L748 eck$LassoCheckResult]: Stem: 447#[ULTIMATE.startENTRY]don't care [311] ULTIMATE.startENTRY-->L72-3: Formula: (let ((.cse0 (select |v_#memory_int_48| 1)) (.cse1 (store |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 1))) (and (= |v_#NULL.offset_6| 0) (= (select |v_#valid_93| 1) 1) (= |v_#memory_int_47| (store |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49| (store (select |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_29|))) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t2~0#1.base_49|) (= (select .cse0 0) 48) (= |v_#NULL.base_6| 0) (= (store (store |v_#length_62| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_49| 4) |v_#length_61|) (= (select |v_#length_62| 2) 34) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_39| 0) (= (select |v_#valid_93| 0) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| 0)) (= (select |v_#valid_93| 2) 1) (= (ite (and (< 0 v_~M1~0_53) (< 0 v_~M2~0_51)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49| 1) |v_#valid_92|) (= (select .cse0 1) 0) (= 2 (select |v_#length_62| 1)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49|) 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) (= |v_#pthreadsForks_31| (+ |v_#pthreadsForks_32| 1)) (< 0 |v_#StackHeapBarrier_20|) (= (select |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_29| |v_#pthreadsForks_32|) (= v_~counter~0_67 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_20|, #pthreadsForks=|v_#pthreadsForks_32|, #valid=|v_#valid_93|, #memory_int=|v_#memory_int_48|, #length=|v_#length_62|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_39|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_27|, #NULL.offset=|v_#NULL.offset_6|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_32|, #pthreadsForks=|v_#pthreadsForks_31|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_59|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_29|, #length=|v_#length_61|, ~M1~0=v_~M1~0_53, ~counter~0=v_~counter~0_67, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_19|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_26|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_49|, #NULL.base=|v_#NULL.base_6|, #StackHeapBarrier=|v_#StackHeapBarrier_20|, ~M2~0=v_~M2~0_51, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_92|, #memory_int=|v_#memory_int_47|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_49|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ~M2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ~M1~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 439#[L72-3]don't care [231] L72-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 403#[thread1ENTRY, L72-4]don't care [212] thread1ENTRY-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 405#[L41-4, L72-4]don't care [300] L72-4-->L73-3: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_19| |v_#pthreadsForks_24|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_27|) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_27| 4) (select |v_#length_45| |v_ULTIMATE.start_main_~#t2~0#1.base_33|)) (= (select |v_#valid_68| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) 1) (= (store |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33| (store (select |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) |v_ULTIMATE.start_main_~#t2~0#1.offset_27| |v_ULTIMATE.start_main_#t~pre9#1_19|)) |v_#memory_int_35|) (= |v_#pthreadsForks_23| (+ |v_#pthreadsForks_24| 1))) InVars {#pthreadsForks=|v_#pthreadsForks_24|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_36|, #length=|v_#length_45|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} OutVars{#pthreadsForks=|v_#pthreadsForks_23|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_19|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_11|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_35|, #length=|v_#length_45|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_19|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} AuxVars[] AssignedVars[#pthreadsForks, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#t~nondet8#1, #memory_int, ULTIMATE.start_main_#t~pre7#1] 429#[L41-4, L73-3]don't care [234] L73-3-->thread2ENTRY: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar1_2) (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread2Thread1of1ForFork1_thidvar0_2) (= 0 v_thread2Thread1of1ForFork1_thidvar2_2)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|} OutVars{thread2Thread1of1ForFork1_#res.offset=|v_thread2Thread1of1ForFork1_#res.offset_4|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_12, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_6|, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_6|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, thread2Thread1of1ForFork1_#res.base=|v_thread2Thread1of1ForFork1_#res.base_4|, thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_2, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#res.offset, thread2Thread1of1ForFork1_~i~1, thread2Thread1of1ForFork1_#t~post4, thread2Thread1of1ForFork1_#t~post3, thread2Thread1of1ForFork1_#res.base, thread2Thread1of1ForFork1_thidvar2, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 433#[L41-4, thread2ENTRY, L73-4]don't care [2022-07-22 12:24:45,133 INFO L750 eck$LassoCheckResult]: Loop: 433#[L41-4, thread2ENTRY, L73-4]don't care [296] L41-4-->L41-4: Formula: (and (< v_thread1Thread1of1ForFork0_~i~0_28 v_~M1~0_35) (= (+ v_~counter~0_54 1) v_~counter~0_53) (= (+ v_thread1Thread1of1ForFork0_~i~0_28 1) v_thread1Thread1of1ForFork0_~i~0_27)) InVars {~counter~0=v_~counter~0_54, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_28, ~M1~0=v_~M1~0_35} OutVars{~counter~0=v_~counter~0_53, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_17|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_9|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_27, ~M1~0=v_~M1~0_35} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0] 433#[L41-4, thread2ENTRY, L73-4]don't care [2022-07-22 12:24:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash 322939169, now seen corresponding path program 1 times [2022-07-22 12:24:45,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400305941] [2022-07-22 12:24:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:45,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,178 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:45,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash 327, now seen corresponding path program 3 times [2022-07-22 12:24:45,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:45,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236273120] [2022-07-22 12:24:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,225 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:45,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1421179943, now seen corresponding path program 1 times [2022-07-22 12:24:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:45,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723256737] [2022-07-22 12:24:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:45,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:45,284 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:45,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:45,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:45,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:45,285 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 12:24:45,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:45,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:45,286 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration3_Loop [2022-07-22 12:24:45,286 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:45,286 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:45,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:45,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:45,357 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 12:24:45,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,358 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) [2022-07-22 12:24:45,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,371 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 [2022-07-22 12:24:45,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_5=-1} Honda state: {v_rep#funAddr~thread1.base_5=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:45,441 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 [2022-07-22 12:24:45,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,444 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 12:24:45,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_5=1} Honda state: {v_rep#funAddr~thread2.offset_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:45,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,525 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-22 12:24:45,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,559 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,559 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post1=0} Honda state: {thread1Thread1of1ForFork0_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:45,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,597 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 12:24:45,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,628 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.base_5=-1} Honda state: {v_rep#funAddr~thread2.base_5=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:45,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,671 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 12:24:45,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post2=0} Honda state: {thread1Thread1of1ForFork0_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 12:24:45,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,747 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 12:24:45,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,814 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 12:24:45,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 12:24:45,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 12:24:45,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~counter~0=0} Honda state: {~counter~0=0} Generalized eigenvectors: [{~counter~0=-6}, {~counter~0=6}, {~counter~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2022-07-22 12:24:45,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-22 12:24:45,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,874 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 12:24:45,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:45,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-22 12:24:45,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:45,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:45,933 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:45,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-22 12:24:45,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 12:24:45,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 12:24:46,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 12:24:46,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-22 12:24:46,072 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 12:24:46,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 12:24:46,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 12:24:46,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 12:24:46,072 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 12:24:46,072 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 12:24:46,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 12:24:46,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration3_Loop [2022-07-22 12:24:46,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 12:24:46,073 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 12:24:46,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 12:24:46,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 12:24:46,150 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 12:24:46,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,153 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-22 12:24:46,158 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 [2022-07-22 12:24:46,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 12:24:46,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 12:24:46,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:46,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,197 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-22 12:24:46,199 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 [2022-07-22 12:24:46,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 12:24:46,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 12:24:46,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-22 12:24:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,248 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-22 12:24:46,250 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 [2022-07-22 12:24:46,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 12:24:46,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 12:24:46,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,320 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,322 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 [2022-07-22 12:24:46,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:46,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-22 12:24:46,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:46,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:46,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:46,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,369 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-22 12:24:46,371 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 [2022-07-22 12:24:46,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:46,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:46,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:46,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:46,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,431 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,434 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 [2022-07-22 12:24:46,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:46,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:46,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:46,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-22 12:24:46,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 12:24:46,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:46,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,493 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,502 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 [2022-07-22 12:24:46,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 12:24:46,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 12:24:46,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 12:24:46,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 12:24:46,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 12:24:46,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 12:24:46,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 12:24:46,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-22 12:24:46,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 12:24:46,535 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 12:24:46,535 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 12:24:46,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:24:46,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:24:46,538 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:24:46,539 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 12:24:46,539 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 12:24:46,539 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 12:24:46,540 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_~i~0, ~M1~0) = -1*thread1Thread1of1ForFork0_~i~0 + 1*~M1~0 Supporting invariants [] [2022-07-22 12:24:46,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 12:24:46,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-22 12:24:46,576 INFO L257 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 12:24:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:46,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:24:46,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:24:46,617 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:24:46,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:24:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:24:46,619 INFO L142 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 12:24:46,619 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 101 transitions. cyclomatic complexity: 81 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:24:46,642 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 101 transitions. cyclomatic complexity: 81. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 125 transitions. Complement of second has 3 states. [2022-07-22 12:24:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-07-22 12:24:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:24:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2022-07-22 12:24:46,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-22 12:24:46,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:46,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2022-07-22 12:24:46,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:46,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 12:24:46,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 12:24:46,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 125 transitions. [2022-07-22 12:24:46,647 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 11 [2022-07-22 12:24:46,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 125 transitions. [2022-07-22 12:24:46,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-07-22 12:24:46,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-07-22 12:24:46,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 125 transitions. [2022-07-22 12:24:46,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 12:24:46,650 INFO L220 hiAutomatonCegarLoop]: Abstraction has 47 states and 125 transitions. [2022-07-22 12:24:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 125 transitions. [2022-07-22 12:24:46,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2022-07-22 12:24:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 2.5526315789473686) internal successors, (97), 37 states have internal predecessors, (97), 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) [2022-07-22 12:24:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 97 transitions. [2022-07-22 12:24:46,655 INFO L242 hiAutomatonCegarLoop]: Abstraction has 38 states and 97 transitions. [2022-07-22 12:24:46,655 INFO L425 stractBuchiCegarLoop]: Abstraction has 38 states and 97 transitions. [2022-07-22 12:24:46,656 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 12:24:46,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 97 transitions. [2022-07-22 12:24:46,657 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 11 [2022-07-22 12:24:46,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 12:24:46,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 12:24:46,657 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 12:24:46,658 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 12:24:46,658 INFO L748 eck$LassoCheckResult]: Stem: 606#[ULTIMATE.startENTRY]don't care [311] ULTIMATE.startENTRY-->L72-3: Formula: (let ((.cse0 (select |v_#memory_int_48| 1)) (.cse1 (store |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 1))) (and (= |v_#NULL.offset_6| 0) (= (select |v_#valid_93| 1) 1) (= |v_#memory_int_47| (store |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49| (store (select |v_#memory_int_48| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) |v_ULTIMATE.start_main_~#t1~0#1.offset_41| |v_ULTIMATE.start_main_#t~pre7#1_29|))) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t2~0#1.base_49|) (= (select .cse0 0) 48) (= |v_#NULL.base_6| 0) (= (store (store |v_#length_62| |v_ULTIMATE.start_main_~#t1~0#1.base_49| 4) |v_ULTIMATE.start_main_~#t2~0#1.base_49| 4) |v_#length_61|) (= (select |v_#length_62| 2) 34) (= |v_ULTIMATE.start_main_~#t2~0#1.offset_39| 0) (= (select |v_#valid_93| 0) 0) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| 0)) (= (select |v_#valid_93| 2) 1) (= (ite (and (< 0 v_~M1~0_53) (< 0 v_~M2~0_51)) 1 0) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (= (store .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49| 1) |v_#valid_92|) (= (select .cse0 1) 0) (= 2 (select |v_#length_62| 1)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_41| 0) (= (select .cse1 |v_ULTIMATE.start_main_~#t2~0#1.base_49|) 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_59| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|) (< |v_#StackHeapBarrier_20| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) (= |v_#pthreadsForks_31| (+ |v_#pthreadsForks_32| 1)) (< 0 |v_#StackHeapBarrier_20|) (= (select |v_#valid_93| |v_ULTIMATE.start_main_~#t1~0#1.base_49|) 0) (= |v_ULTIMATE.start_main_#t~pre7#1_29| |v_#pthreadsForks_32|) (= v_~counter~0_67 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_20|, #pthreadsForks=|v_#pthreadsForks_32|, #valid=|v_#valid_93|, #memory_int=|v_#memory_int_48|, #length=|v_#length_62|} OutVars{ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_39|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_27|, #NULL.offset=|v_#NULL.offset_6|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_41|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_32|, #pthreadsForks=|v_#pthreadsForks_31|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_59|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_26|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_29|, #length=|v_#length_61|, ~M1~0=v_~M1~0_53, ~counter~0=v_~counter~0_67, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_19|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_36|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_26|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_49|, #NULL.base=|v_#NULL.base_6|, #StackHeapBarrier=|v_#StackHeapBarrier_20|, ~M2~0=v_~M2~0_51, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, #valid=|v_#valid_92|, #memory_int=|v_#memory_int_47|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_24|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_49|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_43|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet6#1, #NULL.offset, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_#t~mem12#1, #NULL.base, #pthreadsForks, ~M2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, #valid, #memory_int, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, #length, ~M1~0, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1] 598#[L72-3]don't care [231] L72-3-->thread1ENTRY: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 562#[thread1ENTRY, L72-4]don't care [300] L72-4-->L73-3: Formula: (and (= |v_ULTIMATE.start_main_#t~pre9#1_19| |v_#pthreadsForks_24|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_27|) (<= (+ |v_ULTIMATE.start_main_~#t2~0#1.offset_27| 4) (select |v_#length_45| |v_ULTIMATE.start_main_~#t2~0#1.base_33|)) (= (select |v_#valid_68| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) 1) (= (store |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33| (store (select |v_#memory_int_36| |v_ULTIMATE.start_main_~#t2~0#1.base_33|) |v_ULTIMATE.start_main_~#t2~0#1.offset_27| |v_ULTIMATE.start_main_#t~pre9#1_19|)) |v_#memory_int_35|) (= |v_#pthreadsForks_23| (+ |v_#pthreadsForks_24| 1))) InVars {#pthreadsForks=|v_#pthreadsForks_24|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_36|, #length=|v_#length_45|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} OutVars{#pthreadsForks=|v_#pthreadsForks_23|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_19|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_27|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_11|, #valid=|v_#valid_68|, #memory_int=|v_#memory_int_35|, #length=|v_#length_45|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_19|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_33|} AuxVars[] AssignedVars[#pthreadsForks, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#t~nondet8#1, #memory_int, ULTIMATE.start_main_#t~pre7#1] 566#[thread1ENTRY, L73-3]don't care [234] L73-3-->thread2ENTRY: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar1_2) (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread2Thread1of1ForFork1_thidvar0_2) (= 0 v_thread2Thread1of1ForFork1_thidvar2_2)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|} OutVars{thread2Thread1of1ForFork1_#res.offset=|v_thread2Thread1of1ForFork1_#res.offset_4|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_12, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_6|, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_6|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, thread2Thread1of1ForFork1_#res.base=|v_thread2Thread1of1ForFork1_#res.base_4|, thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_2, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#res.offset, thread2Thread1of1ForFork1_~i~1, thread2Thread1of1ForFork1_#t~post4, thread2Thread1of1ForFork1_#t~post3, thread2Thread1of1ForFork1_#res.base, thread2Thread1of1ForFork1_thidvar2, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 570#[thread1ENTRY, L73-4, thread2ENTRY]don't care [222] thread2ENTRY-->L54-1: Formula: (= v_thread2Thread1of1ForFork1_~i~1_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_~i~1] 608#[thread1ENTRY, L73-4, L54-1]don't care [2022-07-22 12:24:46,658 INFO L750 eck$LassoCheckResult]: Loop: 608#[thread1ENTRY, L73-4, L54-1]don't care [244] L54-1-->L54-1: Formula: (and (< v_thread2Thread1of1ForFork1_~i~1_14 v_~M2~0_9) (let ((.cse0 (< 0 v_~counter~0_34))) (or (and (= v_~counter~0_34 v_~counter~0_33) (= |v_thread2Thread1of1ForFork1_#t~post3_8| |v_thread2Thread1of1ForFork1_#t~post3_7|) (= v_thread2Thread1of1ForFork1_~i~1_14 v_thread2Thread1of1ForFork1_~i~1_13) (not .cse0) (= |v_thread2Thread1of1ForFork1_#t~post4_8| |v_thread2Thread1of1ForFork1_#t~post4_7|)) (and (= v_thread2Thread1of1ForFork1_~i~1_13 (+ v_thread2Thread1of1ForFork1_~i~1_14 1)) (= (+ v_~counter~0_33 1) v_~counter~0_34) .cse0)))) InVars {~counter~0=v_~counter~0_34, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_8|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_14, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_8|, ~M2~0=v_~M2~0_9} OutVars{~counter~0=v_~counter~0_33, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_7|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_13, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_7|, ~M2~0=v_~M2~0_9} AuxVars[] AssignedVars[~counter~0, thread2Thread1of1ForFork1_#t~post4, thread2Thread1of1ForFork1_~i~1, thread2Thread1of1ForFork1_#t~post3] 608#[thread1ENTRY, L73-4, L54-1]don't care [2022-07-22 12:24:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:46,659 INFO L85 PathProgramCache]: Analyzing trace with hash 323021679, now seen corresponding path program 1 times [2022-07-22 12:24:46,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:46,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101740668] [2022-07-22 12:24:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:46,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,675 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:46,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:46,691 INFO L85 PathProgramCache]: Analyzing trace with hash 275, now seen corresponding path program 1 times [2022-07-22 12:24:46,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:46,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121255643] [2022-07-22 12:24:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:46,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,696 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:46,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:24:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1423737701, now seen corresponding path program 1 times [2022-07-22 12:24:46,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:24:46,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812457060] [2022-07-22 12:24:46,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:24:46,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:24:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,715 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 12:24:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 12:24:46,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 12:24:47,124 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 [2022-07-22 12:24:47,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 12:24:47,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:24:47 BoogieIcfgContainer [2022-07-22 12:24:47,608 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:24:47,609 INFO L158 Benchmark]: Toolchain (without parser) took 9368.92ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 137.6MB in the beginning and 148.4MB in the end (delta: -10.8MB). Peak memory consumption was 113.7MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,610 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:24:47,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.00ms. Allocated memory is still 163.6MB. Free memory was 137.4MB in the beginning and 127.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.83ms. Allocated memory is still 163.6MB. Free memory was 127.1MB in the beginning and 125.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,611 INFO L158 Benchmark]: Boogie Preprocessor took 31.53ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 124.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,612 INFO L158 Benchmark]: RCFGBuilder took 582.79ms. Allocated memory is still 163.6MB. Free memory was 124.4MB in the beginning and 111.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,612 INFO L158 Benchmark]: BuchiAutomizer took 8422.92ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 111.0MB in the beginning and 148.4MB in the end (delta: -37.4MB). Peak memory consumption was 87.4MB. Max. memory is 8.0GB. [2022-07-22 12:24:47,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 272.00ms. Allocated memory is still 163.6MB. Free memory was 137.4MB in the beginning and 127.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.83ms. Allocated memory is still 163.6MB. Free memory was 127.1MB in the beginning and 125.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.53ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 124.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 582.79ms. Allocated memory is still 163.6MB. Free memory was 124.4MB in the beginning and 111.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 8422.92ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 111.0MB in the beginning and 148.4MB in the end (delta: -37.4MB). Peak memory consumption was 87.4MB. 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 (0 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + M1 and consists of 2 locations. One deterministic module has affine ranking function -1 * i + M1 and consists of 2 locations. One deterministic module has affine ranking function -1 * i + M1 and consists of 2 locations. The remainder module has 38 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax260 hnf100 lsp25 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 3.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 52]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\old(cond)=1, \result={0:0}, \result=0, \result={0:0}, cond=1, counter=0, i=0, i=0, M1=1, M2=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2560037c in0,26624, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27eaa2cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f438275 in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@798a7cbf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@43127e73=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@62854b5f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@392b91bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@670f8aea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6903bd3a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6e6c71f4=0, t1={15591:0}, t2={15590:0}} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 52]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L38] 0 int M1, M2, counter; [L65] 0 pthread_t t1, t2; [L67] 0 M1 = __VERIFIER_nondet_int() [L68] 0 M2 = __VERIFIER_nondet_int() [L69] CALL 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L35] COND FALSE 0 !(!cond) [L69] RET 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L73] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L51] 2 int i = 0; Loop: [L52] COND TRUE i < M2 [L54] COND FALSE !(counter > 0) End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 82 PlacesBefore, 20 PlacesAfterwards, 81 TransitionsBefore, 15 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 75 TotalNumberOfCompositions, 457 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 454, positive: 453, positive conditional: 0, positive unconditional: 453, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 276, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 276, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 454, positive: 178, positive conditional: 0, positive unconditional: 178, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 276, unknown conditional: 0, unknown unconditional: 276] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2022-07-22 12:24:47,671 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...