./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 d74da2e3412ebf25201dbb4db5374c4c67ab19bd ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:20:49,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:20:49,693 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:20:49,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:20:49,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:20:49,702 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:20:49,703 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:20:49,704 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:20:49,706 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:20:49,707 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:20:49,707 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:20:49,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:20:49,708 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:20:49,709 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:20:49,710 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:20:49,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:20:49,711 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:20:49,713 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:20:49,715 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:20:49,716 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:20:49,717 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:20:49,718 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:20:49,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:20:49,720 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:20:49,721 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:20:49,721 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:20:49,722 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:20:49,723 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:20:49,723 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:20:49,724 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:20:49,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:20:49,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:20:49,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:20:49,726 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:20:49,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:20:49,727 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:20:49,727 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 03:20:49,740 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:20:49,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:20:49,741 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:20:49,742 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:20:49,742 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:20:49,742 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 03:20:49,742 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 03:20:49,742 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 03:20:49,742 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 03:20:49,743 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 03:20:49,743 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 03:20:49,743 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:20:49,743 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:20:49,743 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:20:49,743 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 03:20:49,744 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 03:20:49,745 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:20:49,745 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:20:49,745 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 03:20:49,745 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:20:49,745 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:20:49,745 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 03:20:49,746 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 03:20:49,746 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_bd18668c-8ba3-4549-820d-16f2d9185277/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 -> d74da2e3412ebf25201dbb4db5374c4c67ab19bd [2018-11-10 03:20:49,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:20:49,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:20:49,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:20:49,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:20:49,782 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:20:49,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaC3_true-termination_true-no-overflow.c [2018-11-10 03:20:49,823 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/data/75949f856/db9bc1bf7c244a8cb66ea66b719a48f4/FLAG8ebc90a98 [2018-11-10 03:20:50,161 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:20:50,161 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/sv-benchmarks/c/termination-restricted-15/PastaC3_true-termination_true-no-overflow.c [2018-11-10 03:20:50,165 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/data/75949f856/db9bc1bf7c244a8cb66ea66b719a48f4/FLAG8ebc90a98 [2018-11-10 03:20:50,177 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/data/75949f856/db9bc1bf7c244a8cb66ea66b719a48f4 [2018-11-10 03:20:50,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:20:50,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:20:50,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:20:50,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:20:50,183 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:20:50,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50, skipping insertion in model container [2018-11-10 03:20:50,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:20:50,204 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:20:50,313 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:20:50,316 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:20:50,327 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:20:50,336 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:20:50,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50 WrapperNode [2018-11-10 03:20:50,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:20:50,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:20:50,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:20:50,338 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:20:50,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:20:50,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:20:50,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:20:50,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:20:50,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... [2018-11-10 03:20:50,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:20:50,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:20:50,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:20:50,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:20:50,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:20:50,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:20:50,581 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:20:50,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:20:50 BoogieIcfgContainer [2018-11-10 03:20:50,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:20:50,583 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 03:20:50,583 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 03:20:50,586 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 03:20:50,587 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:20:50,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 03:20:50" (1/3) ... [2018-11-10 03:20:50,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18db75ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:20:50, skipping insertion in model container [2018-11-10 03:20:50,589 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:20:50,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:20:50" (2/3) ... [2018-11-10 03:20:50,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18db75ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:20:50, skipping insertion in model container [2018-11-10 03:20:50,590 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:20:50,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:20:50" (3/3) ... [2018-11-10 03:20:50,592 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaC3_true-termination_true-no-overflow.c [2018-11-10 03:20:50,647 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:20:50,648 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 03:20:50,648 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 03:20:50,648 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 03:20:50,648 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:20:50,648 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:20:50,649 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 03:20:50,649 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:20:50,649 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 03:20:50,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 03:20:50,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:50,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:20:50,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:20:50,690 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 03:20:50,690 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:20:50,690 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 03:20:50,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 03:20:50,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:50,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:20:50,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:20:50,692 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 03:20:50,692 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:20:50,701 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L14-2true [2018-11-10 03:20:50,701 INFO L795 eck$LassoCheckResult]: Loop: 7#L14-2true assume true; 8#L13-1true assume !!(main_~x~0 < main_~y~0); 11#L14true assume !(main_~x~0 < main_~z~0);main_~z~0 := main_~z~0 + 1; 7#L14-2true [2018-11-10 03:20:50,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:50,708 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 03:20:50,710 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:50,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:50,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:50,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:50,792 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-10 03:20:50,793 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:50,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:50,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:50,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:50,803 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-10 03:20:50,803 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:50,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:50,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:50,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:50,874 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:50,875 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:50,875 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:50,875 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:50,875 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:20:50,875 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:50,875 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:50,876 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:50,876 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 03:20:50,876 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:50,876 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:50,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:50,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:50,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:50,989 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:50,989 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:50,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:50,993 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:51,015 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:51,015 INFO L446 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_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,021 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:51,021 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:51,039 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:51,040 INFO L446 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_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,042 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:51,042 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,062 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:20:51,062 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:51,338 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:20:51,339 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:51,339 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:51,339 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:51,339 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:51,339 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:20:51,339 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:51,339 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:51,339 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:51,339 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 03:20:51,339 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:51,340 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:51,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,416 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:51,420 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:20:51,421 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 [2018-11-10 03:20:51,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:51,422 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:51,422 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:51,422 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:51,425 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:51,425 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:51,433 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:51,433 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 [2018-11-10 03:20:51,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:51,434 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:51,434 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:51,434 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:51,437 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:51,437 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:51,445 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:51,446 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 [2018-11-10 03:20:51,446 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:51,446 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:20:51,447 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:51,447 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:51,447 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:51,448 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:20:51,448 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:20:51,455 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:20:51,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:20:51,460 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:20:51,462 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:20:51,462 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:20:51,463 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:20:51,463 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-10 03:20:51,464 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:20:51,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:51,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:51,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:51,539 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 [2018-11-10 03:20:51,539 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 3 states. [2018-11-10 03:20:51,581 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 3 states. Result 27 states and 32 transitions. Complement of second has 6 states. [2018-11-10 03:20:51,582 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 [2018-11-10 03:20:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 03:20:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 03:20:51,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 03:20:51,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:51,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 03:20:51,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:51,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 03:20:51,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:51,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-10 03:20:51,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:51,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 11 states and 14 transitions. [2018-11-10 03:20:51,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 03:20:51,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 03:20:51,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-10 03:20:51,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:20:51,596 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 03:20:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-10 03:20:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 03:20:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 03:20:51,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-10 03:20:51,614 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 03:20:51,615 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 03:20:51,615 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 03:20:51,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-10 03:20:51,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:51,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:20:51,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:20:51,615 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 03:20:51,615 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:20:51,616 INFO L793 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 76#L14-2 assume true; 84#L13-1 assume !!(main_~x~0 < main_~y~0); 85#L14 assume main_~x~0 < main_~z~0;main_~x~0 := main_~x~0 + 1; 82#L14-2 [2018-11-10 03:20:51,616 INFO L795 eck$LassoCheckResult]: Loop: 82#L14-2 assume true; 78#L13-1 assume !!(main_~x~0 < main_~y~0); 79#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := main_~z~0 + 1; 82#L14-2 [2018-11-10 03:20:51,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:51,616 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 03:20:51,616 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:51,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:51,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:51,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:51,622 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 2 times [2018-11-10 03:20:51,622 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:51,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:51,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:51,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:51,628 INFO L82 PathProgramCache]: Analyzing trace with hash 150863077, now seen corresponding path program 1 times [2018-11-10 03:20:51,628 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:51,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:51,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,630 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:20:51,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:51,653 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:51,653 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:51,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:51,653 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:51,654 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:20:51,654 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:51,654 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:51,654 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:51,654 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 03:20:51,654 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:51,654 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:51,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:51,704 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:51,704 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:51,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:51,732 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:51,732 INFO L446 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_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:51,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:51,753 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:51,754 INFO L446 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_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,757 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:51,758 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/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 [2018-11-10 03:20:51,780 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:20:51,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:52,037 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:20:52,038 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:52,039 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:52,039 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:52,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:52,039 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:20:52,039 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,039 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:52,039 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:52,039 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 03:20:52,039 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:52,040 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:52,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,071 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:52,071 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:20:52,072 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 [2018-11-10 03:20:52,072 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:52,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:52,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:52,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:52,075 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:52,075 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:52,079 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:52,079 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 [2018-11-10 03:20:52,079 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:52,080 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:52,080 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:52,080 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:52,081 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:52,082 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:52,088 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:52,088 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 [2018-11-10 03:20:52,089 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:52,089 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:20:52,090 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:52,090 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:52,090 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:52,091 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:20:52,092 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:20:52,097 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:20:52,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:20:52,102 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:20:52,102 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:20:52,102 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:20:52,103 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:20:52,103 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-11-10 03:20:52,103 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:20:52,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:52,134 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 [2018-11-10 03:20:52,135 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 03:20:52,145 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 17 states and 22 transitions. Complement of second has 5 states. [2018-11-10 03:20:52,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 03:20:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 03:20:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 03:20:52,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 03:20:52,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 03:20:52,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-10 03:20:52,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-10 03:20:52,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:52,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-10 03:20:52,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 03:20:52,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 03:20:52,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-10 03:20:52,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:20:52,150 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-10 03:20:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-10 03:20:52,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 03:20:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 03:20:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-10 03:20:52,152 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-10 03:20:52,152 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-10 03:20:52,152 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 03:20:52,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2018-11-10 03:20:52,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:20:52,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:20:52,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:20:52,154 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2018-11-10 03:20:52,154 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:20:52,154 INFO L793 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 148#L14-2 assume true; 154#L13-1 assume !!(main_~x~0 < main_~y~0); 155#L14 assume main_~x~0 < main_~z~0;main_~x~0 := main_~x~0 + 1; 157#L14-2 assume true; 160#L13-1 assume !!(main_~x~0 < main_~y~0); 159#L14 assume main_~x~0 < main_~z~0;main_~x~0 := main_~x~0 + 1; 150#L14-2 [2018-11-10 03:20:52,154 INFO L795 eck$LassoCheckResult]: Loop: 150#L14-2 assume true; 151#L13-1 assume !!(main_~x~0 < main_~y~0); 158#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := main_~z~0 + 1; 150#L14-2 [2018-11-10 03:20:52,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,155 INFO L82 PathProgramCache]: Analyzing trace with hash 150863075, now seen corresponding path program 2 times [2018-11-10 03:20:52,155 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:52,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,165 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 3 times [2018-11-10 03:20:52,165 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,166 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:20:52,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1826081864, now seen corresponding path program 2 times [2018-11-10 03:20:52,172 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:20:52,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,217 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:52,217 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:52,217 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:52,217 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:52,217 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:20:52,217 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,217 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:52,218 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:52,218 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 03:20:52,218 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:52,218 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:52,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,295 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:52,295 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/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 [2018-11-10 03:20:52,300 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:52,301 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:52,331 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:52,332 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,337 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:52,337 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:20:52,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:52,651 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:20:52,652 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:52,652 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:52,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:52,653 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:52,653 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:20:52,653 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,653 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:52,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:52,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 03:20:52,653 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:52,654 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:52,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,692 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:52,693 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:20:52,693 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 [2018-11-10 03:20:52,694 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:52,694 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:52,694 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:52,694 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:52,695 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:52,695 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:52,699 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:52,699 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 [2018-11-10 03:20:52,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:52,700 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:20:52,700 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:52,701 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:52,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:52,701 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:20:52,701 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:20:52,704 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:20:52,707 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:20:52,707 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:20:52,708 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:20:52,708 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:20:52,708 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:20:52,708 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-11-10 03:20:52,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:20:52,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:52,731 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 [2018-11-10 03:20:52,731 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-10 03:20:52,738 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 5 states. [2018-11-10 03:20:52,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 03:20:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 03:20:52,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 03:20:52,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 03:20:52,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,740 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 03:20:52,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:52,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 03:20:52,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-10 03:20:52,764 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 5 states. [2018-11-10 03:20:52,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 03:20:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 03:20:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 03:20:52,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 03:20:52,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,766 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 03:20:52,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:52,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:52,790 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 03:20:52,790 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-10 03:20:52,799 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 24 states and 32 transitions. Complement of second has 4 states. [2018-11-10 03:20:52,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 03:20:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 03:20:52,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-10 03:20:52,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 03:20:52,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-10 03:20:52,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-10 03:20:52,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:52,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2018-11-10 03:20:52,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 03:20:52,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 26 transitions. [2018-11-10 03:20:52,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 03:20:52,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 03:20:52,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2018-11-10 03:20:52,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:20:52,804 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2018-11-10 03:20:52,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2018-11-10 03:20:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 8. [2018-11-10 03:20:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-10 03:20:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-10 03:20:52,805 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-10 03:20:52,805 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-10 03:20:52,805 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 03:20:52,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-10 03:20:52,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 03:20:52,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:20:52,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:20:52,806 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 03:20:52,806 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:20:52,807 INFO L793 eck$LassoCheckResult]: Stem: 360#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 358#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 359#L14-2 [2018-11-10 03:20:52,807 INFO L795 eck$LassoCheckResult]: Loop: 359#L14-2 assume true; 361#L13-1 assume !!(main_~x~0 < main_~y~0); 364#L14 assume main_~x~0 < main_~z~0;main_~x~0 := main_~x~0 + 1; 359#L14-2 [2018-11-10 03:20:52,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 03:20:52,807 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,808 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:20:52,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,810 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 1 times [2018-11-10 03:20:52,810 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,811 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:20:52,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:52,814 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 3 times [2018-11-10 03:20:52,815 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:20:52,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:20:52,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:20:52,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:20:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:20:52,832 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:52,832 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:52,832 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:52,832 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:52,832 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:20:52,832 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,832 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:52,833 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:52,833 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 03:20:52,833 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:52,833 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:52,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:52,882 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:52,882 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:52,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:52,902 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:52,903 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,906 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:52,907 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:52,923 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:20:52,923 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/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 [2018-11-10 03:20:52,926 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:20:52,926 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd18668c-8ba3-4549-820d-16f2d9185277/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:52,946 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:20:52,946 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:20:53,137 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:20:53,138 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:20:53,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:20:53,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:20:53,139 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:20:53,139 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:20:53,139 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:20:53,139 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:20:53,139 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:20:53,139 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 03:20:53,139 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:20:53,139 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:20:53,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:53,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:53,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:20:53,172 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:20:53,172 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:20:53,173 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 [2018-11-10 03:20:53,173 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:53,174 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:53,174 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:53,174 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:53,175 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:53,175 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:53,178 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:53,179 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 [2018-11-10 03:20:53,179 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:53,179 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:53,180 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:53,180 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:53,181 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:20:53,181 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:20:53,184 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:20:53,184 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 [2018-11-10 03:20:53,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:20:53,185 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:20:53,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:20:53,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:20:53,185 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:20:53,186 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:20:53,186 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:20:53,189 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:20:53,192 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 03:20:53,192 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 03:20:53,193 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:20:53,193 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:20:53,193 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:20:53,193 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 03:20:53,194 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:20:53,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:20:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:53,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:20:53,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:20:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:20:53,242 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 [2018-11-10 03:20:53,243 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 03:20:53,255 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 25 transitions. Complement of second has 6 states. [2018-11-10 03:20:53,255 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 [2018-11-10 03:20:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:20:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-10 03:20:53,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 03:20:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:53,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 03:20:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:53,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 03:20:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:20:53,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2018-11-10 03:20:53,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:20:53,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-11-10 03:20:53,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 03:20:53,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 03:20:53,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 03:20:53,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 03:20:53,258 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:20:53,258 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:20:53,258 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:20:53,258 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 03:20:53,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:20:53,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:20:53,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 03:20:53,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 03:20:53 BoogieIcfgContainer [2018-11-10 03:20:53,262 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 03:20:53,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:20:53,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:20:53,263 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:20:53,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:20:50" (3/4) ... [2018-11-10 03:20:53,267 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:20:53,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:20:53,267 INFO L168 Benchmark]: Toolchain (without parser) took 3087.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 960.2 MB in the beginning and 860.8 MB in the end (delta: 99.4 MB). Peak memory consumption was 226.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:20:53,268 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:20:53,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:20:53,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.57 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:20:53,269 INFO L168 Benchmark]: Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:20:53,270 INFO L168 Benchmark]: RCFGBuilder took 209.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:20:53,270 INFO L168 Benchmark]: BuchiAutomizer took 2679.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.8 MB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:20:53,271 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 860.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:20:53,273 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.57 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 209.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2679.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.8 MB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory is still 860.8 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * x + y and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 38 SDtfs, 40 SDslu, 10 SDs, 0 SdLazy, 37 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf97 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...