./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 79bd658ed9c5ba1aa412e80cf651fd0f09a08950 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:10:16,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:10:16,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:10:16,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:10:16,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:10:16,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:10:16,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:10:16,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:10:16,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:10:16,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:10:16,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:10:16,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:10:16,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:10:16,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:10:16,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:10:16,694 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:10:16,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:10:16,696 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:10:16,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:10:16,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:10:16,699 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:10:16,699 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:10:16,701 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:10:16,701 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:10:16,701 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:10:16,702 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:10:16,703 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:10:16,703 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:10:16,704 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:10:16,705 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:10:16,705 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:10:16,705 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:10:16,705 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:10:16,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:10:16,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:10:16,706 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:10:16,707 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:10:16,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:10:16,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:10:16,719 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:10:16,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:10:16,719 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:10:16,719 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:10:16,719 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:10:16,719 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:10:16,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:10:16,720 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:10:16,721 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:10:16,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:10:16,722 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:10:16,722 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:10:16,722 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:10:16,722 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:10:16,722 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:10:16,723 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:10:16,723 INFO L133 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/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 -> 79bd658ed9c5ba1aa412e80cf651fd0f09a08950 [2018-11-28 12:10:16,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:10:16,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:10:16,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:10:16,762 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:10:16,762 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:10:16,763 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c [2018-11-28 12:10:16,808 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/data/7eb0c02f1/cd51a38a032c486989253a3f98fcd98b/FLAG09232fdce [2018-11-28 12:10:17,155 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:10:17,155 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c [2018-11-28 12:10:17,160 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/data/7eb0c02f1/cd51a38a032c486989253a3f98fcd98b/FLAG09232fdce [2018-11-28 12:10:17,566 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/data/7eb0c02f1/cd51a38a032c486989253a3f98fcd98b [2018-11-28 12:10:17,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:10:17,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:10:17,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:10:17,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:10:17,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:10:17,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2b40f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17, skipping insertion in model container [2018-11-28 12:10:17,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:10:17,589 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:10:17,683 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:10:17,686 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:10:17,695 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:10:17,703 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:10:17,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17 WrapperNode [2018-11-28 12:10:17,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:10:17,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:10:17,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:10:17,704 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:10:17,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:10:17,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:10:17,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:10:17,724 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:10:17,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... [2018-11-28 12:10:17,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:10:17,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:10:17,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:10:17,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:10:17,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:10:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:10:17,883 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:10:17,883 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 12:10:17,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:10:17 BoogieIcfgContainer [2018-11-28 12:10:17,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:10:17,884 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:10:17,884 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:10:17,886 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:10:17,887 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:10:17,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:10:17" (1/3) ... [2018-11-28 12:10:17,888 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61643a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:10:17, skipping insertion in model container [2018-11-28 12:10:17,888 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:10:17,888 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:10:17" (2/3) ... [2018-11-28 12:10:17,888 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61643a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:10:17, skipping insertion in model container [2018-11-28 12:10:17,888 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:10:17,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:10:17" (3/3) ... [2018-11-28 12:10:17,890 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.13_true-termination_true-no-overflow.c [2018-11-28 12:10:17,927 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:10:17,928 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:10:17,928 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:10:17,928 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:10:17,928 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:10:17,928 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:10:17,928 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:10:17,929 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:10:17,929 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:10:17,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:10:17,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:17,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:10:17,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:10:17,960 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:10:17,961 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:10:17,961 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:10:17,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:10:17,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:17,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:10:17,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:10:17,962 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:10:17,963 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 12:10:17,970 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 10#L16-2true [2018-11-28 12:10:17,970 INFO L796 eck$LassoCheckResult]: Loop: 10#L16-2true assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 8#L13true assume main_~x~0 > main_~z~0;main_~x~0 := main_~x~0 - 1; 10#L16-2true [2018-11-28 12:10:17,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:17,975 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:10:17,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:17,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 12:10:18,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:18,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 12:10:18,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:18,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,107 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:10:18,108 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:10:18,108 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:10:18,108 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:10:18,108 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:10:18,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,109 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:10:18,109 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:10:18,109 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:10:18,109 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:10:18,109 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:10:18,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,201 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:10:18,201 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,205 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,205 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:18,223 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:10:18,223 INFO L448 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/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:18,227 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,227 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:18,242 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:10:18,242 INFO L448 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/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:18,244 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,244 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:10:18,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:18,440 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:10:18,442 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:10:18,442 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:10:18,442 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:10:18,442 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:10:18,442 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:10:18,442 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,442 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:10:18,442 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:10:18,442 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:10:18,442 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:10:18,442 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:10:18,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,514 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:10:18,517 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:10:18,518 INFO L122 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 [2018-11-28 12:10:18,519 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:10:18,519 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:10:18,520 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:10:18,520 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:10:18,523 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:10:18,523 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:10:18,530 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:10:18,530 INFO L122 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 [2018-11-28 12:10:18,531 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:10:18,531 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:10:18,531 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:10:18,531 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:10:18,533 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:10:18,533 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:10:18,540 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:10:18,541 INFO L122 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 [2018-11-28 12:10:18,541 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:10:18,541 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:10:18,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:10:18,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:10:18,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:10:18,543 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:10:18,543 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:10:18,548 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:10:18,554 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 12:10:18,555 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:10:18,556 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:10:18,556 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:10:18,557 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:10:18,557 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 12:10:18,559 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:10:18,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:10:18,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:10:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:10:18,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:10:18,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:10:18,612 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 12:10:18,613 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 12:10:18,648 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 34 transitions. Complement of second has 5 states. [2018-11-28 12:10:18,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:10:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:10:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2018-11-28 12:10:18,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 12:10:18,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:18,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 12:10:18,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:18,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 12:10:18,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:18,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2018-11-28 12:10:18,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:18,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 15 transitions. [2018-11-28 12:10:18,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 12:10:18,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 12:10:18,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2018-11-28 12:10:18,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:10:18,658 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2018-11-28 12:10:18,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2018-11-28 12:10:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-11-28 12:10:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-28 12:10:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2018-11-28 12:10:18,674 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2018-11-28 12:10:18,675 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2018-11-28 12:10:18,675 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:10:18,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2018-11-28 12:10:18,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:18,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:10:18,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:10:18,676 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:10:18,676 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:10:18,676 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 64#L16-2 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 69#L13 [2018-11-28 12:10:18,676 INFO L796 eck$LassoCheckResult]: Loop: 69#L13 assume !(main_~x~0 > main_~z~0); 65#L16 assume main_~y~0 > main_~z~0;main_~y~0 := main_~y~0 - 1; 66#L16-2 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 69#L13 [2018-11-28 12:10:18,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:10:18,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:18,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,684 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-11-28 12:10:18,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:18,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:18,691 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-11-28 12:10:18,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:18,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:18,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:18,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:18,731 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:10:18,732 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:10:18,732 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:10:18,732 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:10:18,732 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:10:18,732 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,732 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:10:18,732 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:10:18,732 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:10:18,732 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:10:18,732 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:10:18,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:18,781 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:10:18,781 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:18,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,795 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:18,821 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:10:18,821 INFO L448 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/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:18,824 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,824 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:18,849 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:10:18,850 INFO L448 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/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/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 [2018-11-28 12:10:18,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:10:18,855 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f710a07-ea16-4719-bfc9-bbfa6075e129/bin-2019/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:18,871 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:10:18,871 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:10:19,176 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:10:19,177 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:10:19,177 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:10:19,177 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:10:19,177 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:10:19,177 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:10:19,178 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:10:19,178 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:10:19,178 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:10:19,178 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:10:19,178 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:10:19,178 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:10:19,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:19,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:19,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:10:19,207 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:10:19,208 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:10:19,208 INFO L122 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 [2018-11-28 12:10:19,208 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:10:19,209 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:10:19,209 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:10:19,209 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:10:19,210 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:10:19,210 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:10:19,212 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:10:19,212 INFO L122 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 [2018-11-28 12:10:19,213 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:10:19,213 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:10:19,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:10:19,213 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:10:19,213 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:10:19,213 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:10:19,214 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:10:19,218 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:10:19,222 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:10:19,222 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:10:19,223 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:10:19,223 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:10:19,223 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:10:19,223 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 12:10:19,223 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:10:19,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:10:19,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:10:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:10:19,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:10:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:10:19,282 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 12:10:19,282 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-28 12:10:19,303 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 35 states and 53 transitions. Complement of second has 7 states. [2018-11-28 12:10:19,304 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 [2018-11-28 12:10:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:10:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-28 12:10:19,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-28 12:10:19,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:19,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 12:10:19,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:19,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-28 12:10:19,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:10:19,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2018-11-28 12:10:19,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:19,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 24 states and 35 transitions. [2018-11-28 12:10:19,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 12:10:19,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 12:10:19,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2018-11-28 12:10:19,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:10:19,309 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2018-11-28 12:10:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2018-11-28 12:10:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-11-28 12:10:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:10:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2018-11-28 12:10:19,312 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2018-11-28 12:10:19,312 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2018-11-28 12:10:19,312 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:10:19,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2018-11-28 12:10:19,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:10:19,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:10:19,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:10:19,313 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 12:10:19,314 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:10:19,314 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 148#L16-2 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 163#L13 assume !(main_~x~0 > main_~z~0); 149#L16 [2018-11-28 12:10:19,314 INFO L796 eck$LassoCheckResult]: Loop: 149#L16 assume !(main_~y~0 > main_~z~0); 150#L16-2 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 157#L13 assume !(main_~x~0 > main_~z~0); 149#L16 [2018-11-28 12:10:19,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:19,316 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 12:10:19,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:19,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:19,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:19,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:19,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:10:19,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:10:19,323 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-11-28 12:10:19,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:10:19,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:10:19,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:19,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:10:19,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:10:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:10:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:10:19,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:10:19,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:10:19,357 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:10:19,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:10:19,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:10:19,360 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 12:10:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:10:19,380 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2018-11-28 12:10:19,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:10:19,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2018-11-28 12:10:19,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:10:19,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2018-11-28 12:10:19,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:10:19,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:10:19,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:10:19,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:10:19,382 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:10:19,383 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:10:19,383 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:10:19,383 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:10:19,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:10:19,383 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:10:19,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:10:19,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:10:19 BoogieIcfgContainer [2018-11-28 12:10:19,388 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:10:19,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:10:19,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:10:19,388 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:10:19,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:10:17" (3/4) ... [2018-11-28 12:10:19,391 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:10:19,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:10:19,392 INFO L168 Benchmark]: Toolchain (without parser) took 1822.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.0 MB in the beginning and 978.5 MB in the end (delta: -22.5 MB). Peak memory consumption was 129.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:10:19,393 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:10:19,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.82 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:10:19,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.40 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:10:19,394 INFO L168 Benchmark]: Boogie Preprocessor took 11.35 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:10:19,395 INFO L168 Benchmark]: RCFGBuilder took 148.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:10:19,395 INFO L168 Benchmark]: BuchiAutomizer took 1503.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 151.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:10:19,396 INFO L168 Benchmark]: Witness Printer took 3.15 ms. Allocated memory is still 1.2 GB. Free memory is still 978.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:10:19,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.82 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.40 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.35 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 148.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1503.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.5 MB in the end (delta: 151.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.15 ms. Allocated memory is still 1.2 GB. Free memory is still 978.5 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 16 SDslu, 3 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...