./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d32dea9005a55265d6c4ef8382f17d9e27d71b7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:29:14,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:29:14,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:29:14,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:29:14,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:29:14,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:29:14,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:29:14,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:29:14,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:29:14,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:29:14,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:29:14,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:29:14,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:29:14,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:29:14,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:29:14,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:29:14,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:29:14,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:29:14,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:29:14,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:29:14,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:29:14,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:29:14,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:29:14,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:29:14,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:29:14,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:29:14,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:29:14,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:29:14,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:29:14,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:29:14,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:29:14,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:29:14,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:29:14,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:29:14,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:29:14,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:29:14,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:29:14,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:29:14,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:29:14,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:29:14,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:29:14,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 05:29:14,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:29:14,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:29:14,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:29:14,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:29:14,746 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:29:14,746 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:29:14,746 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:29:14,746 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:29:14,747 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:29:14,747 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:29:14,747 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:29:14,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:29:14,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:29:14,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:29:14,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:29:14,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:29:14,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:29:14,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:29:14,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:29:14,749 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:29:14,749 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:29:14,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:29:14,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:29:14,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:29:14,750 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:29:14,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:29:14,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:29:14,751 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:29:14,751 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:29:14,752 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d32dea9005a55265d6c4ef8382f17d9e27d71b7 [2019-11-20 05:29:14,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:29:14,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:29:14,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:29:14,898 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:29:14,898 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:29:14,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.03.c [2019-11-20 05:29:14,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/data/8051f0963/9fd709c88d88469fb42c1434f0a76294/FLAG330ce1d15 [2019-11-20 05:29:15,303 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:29:15,304 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/sv-benchmarks/c/termination-restricted-15/c.03.c [2019-11-20 05:29:15,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/data/8051f0963/9fd709c88d88469fb42c1434f0a76294/FLAG330ce1d15 [2019-11-20 05:29:15,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/data/8051f0963/9fd709c88d88469fb42c1434f0a76294 [2019-11-20 05:29:15,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:29:15,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:29:15,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:29:15,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:29:15,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:29:15,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec5683c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15, skipping insertion in model container [2019-11-20 05:29:15,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,335 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:29:15,349 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:29:15,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:29:15,539 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:29:15,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:29:15,635 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:29:15,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15 WrapperNode [2019-11-20 05:29:15,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:29:15,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:29:15,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:29:15,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:29:15,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:29:15,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:29:15,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:29:15,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:29:15,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... [2019-11-20 05:29:15,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:29:15,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:29:15,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:29:15,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:29:15,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:29:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:29:15,907 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:29:15,907 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:29:15,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:15 BoogieIcfgContainer [2019-11-20 05:29:15,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:29:15,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:29:15,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:29:15,915 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:29:15,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:29:15,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:29:15" (1/3) ... [2019-11-20 05:29:15,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44e94b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:29:15, skipping insertion in model container [2019-11-20 05:29:15,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:29:15,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:15" (2/3) ... [2019-11-20 05:29:15,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44e94b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:29:15, skipping insertion in model container [2019-11-20 05:29:15,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:29:15,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:15" (3/3) ... [2019-11-20 05:29:15,921 INFO L371 chiAutomizerObserver]: Analyzing ICFG c.03.c [2019-11-20 05:29:15,970 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:29:15,970 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:29:15,970 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:29:15,971 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:29:15,971 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:29:15,971 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:29:15,971 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:29:15,972 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:29:15,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 05:29:16,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:29:16,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:29:16,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:29:16,014 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:29:16,014 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:29:16,015 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:29:16,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 05:29:16,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:29:16,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:29:16,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:29:16,017 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:29:16,018 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:29:16,025 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2019-11-20 05:29:16,026 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 5#L12true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 3#L12-2true [2019-11-20 05:29:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,032 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 05:29:16,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190270111] [2019-11-20 05:29:16,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-20 05:29:16,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997266449] [2019-11-20 05:29:16,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,142 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-20 05:29:16,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866671489] [2019-11-20 05:29:16,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,160 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,217 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:29:16,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:29:16,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:29:16,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:29:16,219 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:29:16,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:29:16,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:29:16,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2019-11-20 05:29:16,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:29:16,220 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:29:16,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,403 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:29:16,404 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:16,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:16,413 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:29:16,422 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:16,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:29:16,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:29:16,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:16,443 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:16,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:29:16,472 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,493 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:29:16,496 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:29:16,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:29:16,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:29:16,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:29:16,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:29:16,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:29:16,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:29:16,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2019-11-20 05:29:16,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:29:16,497 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:29:16,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,610 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:29:16,614 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:29:16,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:29:16,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:29:16,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:29:16,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:29:16,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:29:16,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 05:29:16,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:29:16,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:29:16,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:29:16,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:29:16,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:29:16,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:29:16,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:29:16,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:29:16,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:29:16,679 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 05:29:16,680 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:29:16,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:29:16,699 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:29:16,700 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 4294967291 Supporting invariants [] [2019-11-20 05:29:16,705 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:29:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:29:16,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:29:16,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:29:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:29:16,765 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 05:29:16,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:29:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:29:16,796 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 05:29:16,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-20 05:29:16,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 21 states and 30 transitions. Complement of second has 7 states. [2019-11-20 05:29:16,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 05:29:16,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:29:16,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-20 05:29:16,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 05:29:16,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:16,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 05:29:16,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:16,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 05:29:16,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:16,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2019-11-20 05:29:16,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:29:16,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 8 states and 11 transitions. [2019-11-20 05:29:16,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 05:29:16,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 05:29:16,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-20 05:29:16,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:29:16,865 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-20 05:29:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-20 05:29:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-20 05:29:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 05:29:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 05:29:16,890 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:29:16,890 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:29:16,891 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:29:16,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 05:29:16,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:29:16,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:29:16,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:29:16,892 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:29:16,892 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:29:16,892 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 69#L12-2 assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 65#L12 [2019-11-20 05:29:16,893 INFO L796 eck$LassoCheckResult]: Loop: 65#L12 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 64#L12-2 assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 65#L12 [2019-11-20 05:29:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 05:29:16,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447913313] [2019-11-20 05:29:16,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-20 05:29:16,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239143476] [2019-11-20 05:29:16,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,919 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:16,920 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-11-20 05:29:16,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:29:16,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226221706] [2019-11-20 05:29:16,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:29:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:29:16,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:29:16,973 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:29:16,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:29:16,974 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:29:16,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:29:16,974 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:29:16,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:16,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:29:16,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:29:16,974 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2019-11-20 05:29:16,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:29:16,975 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:29:16,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:16,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:17,057 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:29:17,057 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:17,062 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,067 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:29:17,067 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:17,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:29:17,084 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:29:17,085 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:29:17,103 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:29:17,127 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,141 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:29:17,144 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:29:17,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:29:17,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:29:17,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:29:17,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:29:17,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:29:17,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:29:17,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2019-11-20 05:29:17,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:29:17,145 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:29:17,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:17,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:17,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:29:17,224 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:29:17,224 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:29:17,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:29:17,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:29:17,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:29:17,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:29:17,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:29:17,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:29:17,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:29:17,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:29:17,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:29:17,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:29:17,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:29:17,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:29:17,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:29:17,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:29:17,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:29:17,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:29:17,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:29:17,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:29:17,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:29:17,303 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:29:17,308 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 05:29:17,308 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ae267dc-2a9e-4a66-9324-de2ba2a79a79/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:29:17,321 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:29:17,321 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:29:17,321 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:29:17,321 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -2*ULTIMATE.start_main_~z~0 + 4294967291 Supporting invariants [] [2019-11-20 05:29:17,325 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:29:17,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:29:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:29:17,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:29:17,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:29:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:29:17,366 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:29:17,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:29:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:29:17,399 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 05:29:17,399 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 05:29:17,440 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 6 states. [2019-11-20 05:29:17,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 05:29:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:29:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-20 05:29:17,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-20 05:29:17,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:17,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 05:29:17,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:17,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 05:29:17,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:29:17,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-11-20 05:29:17,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:29:17,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-11-20 05:29:17,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:29:17,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:29:17,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:29:17,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:29:17,446 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:29:17,446 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:29:17,446 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:29:17,446 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:29:17,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:29:17,446 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:29:17,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 05:29:17,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:29:17 BoogieIcfgContainer [2019-11-20 05:29:17,454 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:29:17,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:29:17,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:29:17,455 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:29:17,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:15" (3/4) ... [2019-11-20 05:29:17,463 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:29:17,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:29:17,466 INFO L168 Benchmark]: Toolchain (without parser) took 2143.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 946.1 MB in the beginning and 952.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 148.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:29:17,466 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:29:17,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:29:17,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:29:17,469 INFO L168 Benchmark]: Boogie Preprocessor took 13.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:29:17,475 INFO L168 Benchmark]: RCFGBuilder took 229.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:29:17,475 INFO L168 Benchmark]: BuchiAutomizer took 1544.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.8 MB in the end (delta: 177.8 MB). Peak memory consumption was 177.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:29:17,476 INFO L168 Benchmark]: Witness Printer took 9.46 ms. Allocated memory is still 1.2 GB. Free memory is still 952.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:29:17,478 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1544.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.8 MB in the end (delta: 177.8 MB). Peak memory consumption was 177.8 MB. Max. memory is 11.5 GB. * Witness Printer took 9.46 ms. Allocated memory is still 1.2 GB. Free memory is still 952.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * x + 4294967291 and consists of 5 locations. One deterministic module has affine ranking function -2 * z + 4294967291 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 17 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax172 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq137 hnf95 smp100 dnf100 smp100 tf109 neg100 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...