./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 32bit --witnessprinter.graph.data.programhash 934ee9c856a834ce808d29dea79c6912619f897f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 01:26:35,573 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:26:35,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:26:35,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:26:35,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:26:35,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:26:35,581 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:26:35,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:26:35,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:26:35,583 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:26:35,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:26:35,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:26:35,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:26:35,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:26:35,586 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:26:35,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:26:35,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:26:35,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:26:35,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:26:35,591 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:26:35,591 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:26:35,592 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:26:35,593 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:26:35,593 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:26:35,593 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:26:35,594 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:26:35,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:26:35,595 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:26:35,596 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:26:35,596 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:26:35,596 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:26:35,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:26:35,597 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:26:35,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:26:35,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:26:35,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:26:35,599 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 01:26:35,609 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:26:35,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:26:35,610 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:26:35,611 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 01:26:35,611 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 01:26:35,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:26:35,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 01:26:35,613 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:26:35,614 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 01:26:35,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:26:35,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:26:35,614 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 01:26:35,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:26:35,614 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:26:35,614 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 01:26:35,615 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 01:26:35,615 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_72d3d7f1-a240-4608-892c-73648d4cb99c/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934ee9c856a834ce808d29dea79c6912619f897f [2018-11-23 01:26:35,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:26:35,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:26:35,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:26:35,652 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:26:35,652 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:26:35,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-11-23 01:26:35,695 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/data/4027bebad/3812c147470246b092ff1cd4fa0f654d/FLAG7566e5d6c [2018-11-23 01:26:36,112 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:26:36,113 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-11-23 01:26:36,118 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/data/4027bebad/3812c147470246b092ff1cd4fa0f654d/FLAG7566e5d6c [2018-11-23 01:26:36,129 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/data/4027bebad/3812c147470246b092ff1cd4fa0f654d [2018-11-23 01:26:36,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:26:36,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:26:36,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:26:36,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:26:36,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:26:36,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e013e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36, skipping insertion in model container [2018-11-23 01:26:36,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:26:36,164 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:26:36,280 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:26:36,282 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:26:36,292 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:26:36,301 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:26:36,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36 WrapperNode [2018-11-23 01:26:36,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:26:36,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:26:36,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:26:36,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:26:36,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:26:36,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:26:36,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:26:36,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:26:36,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... [2018-11-23 01:26:36,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:26:36,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:26:36,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:26:36,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:26:36,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:26:36,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:26:36,508 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:26:36,508 INFO L280 CfgBuilder]: Removed 13 assue(true) statements. [2018-11-23 01:26:36,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:26:36 BoogieIcfgContainer [2018-11-23 01:26:36,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:26:36,509 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 01:26:36,509 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 01:26:36,511 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 01:26:36,512 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:26:36,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:26:36" (1/3) ... [2018-11-23 01:26:36,513 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f9a373c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:26:36, skipping insertion in model container [2018-11-23 01:26:36,513 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:26:36,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:36" (2/3) ... [2018-11-23 01:26:36,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f9a373c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:26:36, skipping insertion in model container [2018-11-23 01:26:36,514 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:26:36,514 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:26:36" (3/3) ... [2018-11-23 01:26:36,515 INFO L375 chiAutomizerObserver]: Analyzing ICFG nested6_true-unreach-call_true-termination.i [2018-11-23 01:26:36,561 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:26:36,561 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 01:26:36,562 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 01:26:36,562 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 01:26:36,562 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:26:36,562 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:26:36,562 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 01:26:36,562 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:26:36,562 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 01:26:36,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-23 01:26:36,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-23 01:26:36,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:36,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:36,589 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 01:26:36,589 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 01:26:36,589 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 01:26:36,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-23 01:26:36,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-23 01:26:36,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:36,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:36,591 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 01:26:36,591 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 01:26:36,596 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 21#L14true assume !!(main_~n~0 < 1000000); 3#L15true assume main_~k~0 == main_~n~0; 22#L15-1true main_~i~0 := 0; 5#L19-3true [2018-11-23 01:26:36,596 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-3true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 8#L20-2true assume !(main_~j~0 < main_~n~0); 6#L19-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5#L19-3true [2018-11-23 01:26:36,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:36,600 INFO L82 PathProgramCache]: Analyzing trace with hash 959370, now seen corresponding path program 1 times [2018-11-23 01:26:36,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:36,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:36,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:36,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:36,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:36,663 INFO L82 PathProgramCache]: Analyzing trace with hash 50890, now seen corresponding path program 1 times [2018-11-23 01:26:36,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:36,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:36,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:36,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:36,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:36,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1484158303, now seen corresponding path program 1 times [2018-11-23 01:26:36,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:36,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:36,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:36,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:36,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:26:36,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:26:36,758 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:36,758 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:36,759 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:36,759 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:36,759 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:26:36,759 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:36,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:36,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:36,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-23 01:26:36,759 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:36,760 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:36,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:36,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:36,842 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:36,842 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:36,853 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:36,854 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:36,877 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:26:36,877 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:37,050 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:26:37,051 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:37,051 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:37,052 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:37,052 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:37,052 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:26:37,052 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:37,052 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:37,052 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:37,052 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-23 01:26:37,052 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:37,052 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:37,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,105 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:37,108 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:26:37,109 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 [2018-11-23 01:26:37,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:37,110 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:37,111 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:37,111 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:37,111 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:37,113 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:37,113 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:37,119 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:26:37,129 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 01:26:37,129 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 01:26:37,130 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:26:37,130 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:26:37,131 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:26:37,131 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-23 01:26:37,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:26:37,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:37,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:37,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:37,186 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 [2018-11-23 01:26:37,187 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-11-23 01:26:37,227 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 63 states and 90 transitions. Complement of second has 7 states. [2018-11-23 01:26:37,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 01:26:37,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2018-11-23 01:26:37,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 63 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 01:26:37,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:37,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 63 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 01:26:37,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:37,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 63 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 01:26:37,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:37,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 90 transitions. [2018-11-23 01:26:37,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-11-23 01:26:37,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 26 states and 33 transitions. [2018-11-23 01:26:37,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 01:26:37,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-23 01:26:37,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2018-11-23 01:26:37,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:37,238 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-23 01:26:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2018-11-23 01:26:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-23 01:26:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 01:26:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-11-23 01:26:37,255 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-11-23 01:26:37,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:26:37,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:26:37,257 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 4 states. [2018-11-23 01:26:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:26:37,320 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2018-11-23 01:26:37,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:26:37,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2018-11-23 01:26:37,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2018-11-23 01:26:37,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 58 transitions. [2018-11-23 01:26:37,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-23 01:26:37,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-23 01:26:37,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 58 transitions. [2018-11-23 01:26:37,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:37,324 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2018-11-23 01:26:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 58 transitions. [2018-11-23 01:26:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 26. [2018-11-23 01:26:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 01:26:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2018-11-23 01:26:37,326 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-23 01:26:37,326 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-23 01:26:37,327 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 01:26:37,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2018-11-23 01:26:37,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-11-23 01:26:37,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:37,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:37,328 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 01:26:37,328 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 01:26:37,328 INFO L794 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 231#L14 assume !!(main_~n~0 < 1000000); 208#L15 assume main_~k~0 == main_~n~0; 209#L15-1 main_~i~0 := 0; 210#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 212#L20-2 [2018-11-23 01:26:37,328 INFO L796 eck$LassoCheckResult]: Loop: 212#L20-2 assume !!(main_~j~0 < main_~n~0); 218#L21 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;main_~k~0 := main_~j~0; 222#L22-2 assume !(main_~k~0 < main_~n~0); 216#L4-8 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 212#L20-2 [2018-11-23 01:26:37,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,329 INFO L82 PathProgramCache]: Analyzing trace with hash 29740491, now seen corresponding path program 1 times [2018-11-23 01:26:37,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:37,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:37,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:37,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1819467, now seen corresponding path program 1 times [2018-11-23 01:26:37,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:37,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:37,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:37,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:37,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:26:37,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 01:26:37,365 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-23 01:26:37,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:26:37,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:26:37,365 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-23 01:26:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:26:37,391 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2018-11-23 01:26:37,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 01:26:37,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-23 01:26:37,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-23 01:26:37,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 35 transitions. [2018-11-23 01:26:37,394 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-23 01:26:37,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-23 01:26:37,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2018-11-23 01:26:37,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:37,394 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-23 01:26:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2018-11-23 01:26:37,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 01:26:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 01:26:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2018-11-23 01:26:37,397 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-23 01:26:37,397 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-23 01:26:37,397 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 01:26:37,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2018-11-23 01:26:37,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-23 01:26:37,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:37,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:37,400 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 01:26:37,400 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-23 01:26:37,400 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 294#L14 assume !!(main_~n~0 < 1000000); 271#L15 assume main_~k~0 == main_~n~0; 272#L15-1 main_~i~0 := 0; 273#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 275#L20-2 [2018-11-23 01:26:37,401 INFO L796 eck$LassoCheckResult]: Loop: 275#L20-2 assume !!(main_~j~0 < main_~n~0); 281#L21 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;__VERIFIER_assert_#in~cond := (if main_~k~0 >= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 291#L4-3 assume !(0 == __VERIFIER_assert_~cond); 289#L4-5 __VERIFIER_assert_#in~cond := (if main_~k~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 283#L4-6 assume !(0 == __VERIFIER_assert_~cond); 279#L4-8 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 275#L20-2 [2018-11-23 01:26:37,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,401 INFO L82 PathProgramCache]: Analyzing trace with hash 29740491, now seen corresponding path program 2 times [2018-11-23 01:26:37,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:37,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:37,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:37,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1771408835, now seen corresponding path program 1 times [2018-11-23 01:26:37,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:37,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:37,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,409 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 01:26:37,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1589140493, now seen corresponding path program 1 times [2018-11-23 01:26:37,419 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:37,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:37,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:37,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:37,493 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:37,493 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:37,493 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:37,493 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:37,493 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:26:37,493 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:37,494 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:37,494 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:37,494 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-23 01:26:37,494 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:37,494 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:37,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,549 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:37,549 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:37,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:37,558 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:37,563 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 01:26:37,563 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:37,580 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:37,580 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:37,608 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:26:37,608 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:37,863 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:26:37,864 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:37,864 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:37,865 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:37,865 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:37,865 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:26:37,865 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:37,865 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:37,865 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:37,865 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-23 01:26:37,865 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:37,865 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:37,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:37,920 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:37,920 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:26:37,920 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 [2018-11-23 01:26:37,921 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:37,921 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:37,922 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:37,922 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:37,922 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:37,922 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:37,922 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:37,924 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:37,924 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 [2018-11-23 01:26:37,925 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:37,925 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:37,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:37,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:37,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:37,927 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:37,927 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:37,931 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:37,931 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 [2018-11-23 01:26:37,932 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:37,932 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:37,932 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:37,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:37,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:37,933 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:37,933 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:37,937 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:26:37,942 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 01:26:37,942 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 01:26:37,942 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:26:37,943 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:26:37,943 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:26:37,943 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2018-11-23 01:26:37,943 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:26:37,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:37,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:37,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:37,980 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 [2018-11-23 01:26:37,980 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-23 01:26:38,009 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 71 states and 90 transitions. Complement of second has 7 states. [2018-11-23 01:26:38,013 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 [2018-11-23 01:26:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:38,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-23 01:26:38,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-23 01:26:38,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-23 01:26:38,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 12 letters. [2018-11-23 01:26:38,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 90 transitions. [2018-11-23 01:26:38,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2018-11-23 01:26:38,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 56 states and 71 transitions. [2018-11-23 01:26:38,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 01:26:38,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-23 01:26:38,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 71 transitions. [2018-11-23 01:26:38,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:38,018 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2018-11-23 01:26:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 71 transitions. [2018-11-23 01:26:38,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 43. [2018-11-23 01:26:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-23 01:26:38,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-23 01:26:38,021 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-23 01:26:38,021 INFO L608 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-23 01:26:38,021 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 01:26:38,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 54 transitions. [2018-11-23 01:26:38,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2018-11-23 01:26:38,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:38,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:38,022 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:26:38,022 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 01:26:38,023 INFO L794 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 451#L14 assume !!(main_~n~0 < 1000000); 427#L15 assume main_~k~0 == main_~n~0; 428#L15-1 main_~i~0 := 0; 429#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 431#L20-2 assume !!(main_~j~0 < main_~n~0); 439#L21 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;main_~k~0 := main_~j~0; 443#L22-2 [2018-11-23 01:26:38,023 INFO L796 eck$LassoCheckResult]: Loop: 443#L22-2 assume !!(main_~k~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 >= 2 * main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 444#L4 assume !(0 == __VERIFIER_assert_~cond); 453#L4-2 main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 443#L22-2 [2018-11-23 01:26:38,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1484158290, now seen corresponding path program 1 times [2018-11-23 01:26:38,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:38,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:38,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 69739, now seen corresponding path program 1 times [2018-11-23 01:26:38,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:38,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:38,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2128734878, now seen corresponding path program 1 times [2018-11-23 01:26:38,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:38,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:38,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,070 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:38,071 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:38,071 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:38,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:38,071 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:26:38,071 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:38,071 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:38,071 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:38,071 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-23 01:26:38,071 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:38,071 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:38,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,137 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:38,138 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,140 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:38,140 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:38,142 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 01:26:38,143 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,158 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:38,158 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:26:38,180 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:38,432 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:26:38,434 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:38,434 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:38,434 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:38,434 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:38,434 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:26:38,434 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:38,434 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:38,434 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:38,435 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-23 01:26:38,435 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:38,435 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:38,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,498 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:38,498 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:26:38,499 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 [2018-11-23 01:26:38,499 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:38,499 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:38,499 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:38,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:38,500 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:38,500 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:38,500 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:38,501 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:38,501 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 [2018-11-23 01:26:38,501 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:38,502 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:38,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:38,502 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:38,502 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:38,503 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:38,503 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:38,507 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:26:38,511 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 01:26:38,511 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 01:26:38,512 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:26:38,512 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:26:38,512 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:26:38,512 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2018-11-23 01:26:38,512 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:26:38,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:38,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:38,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:38,535 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 [2018-11-23 01:26:38,536 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 15 Second operand 3 states. [2018-11-23 01:26:38,560 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 54 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 132 states and 167 transitions. Complement of second has 7 states. [2018-11-23 01:26:38,560 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 [2018-11-23 01:26:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:38,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-11-23 01:26:38,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 01:26:38,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-23 01:26:38,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-23 01:26:38,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:38,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 167 transitions. [2018-11-23 01:26:38,564 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 25 [2018-11-23 01:26:38,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 97 states and 121 transitions. [2018-11-23 01:26:38,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-23 01:26:38,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-23 01:26:38,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 121 transitions. [2018-11-23 01:26:38,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:38,565 INFO L705 BuchiCegarLoop]: Abstraction has 97 states and 121 transitions. [2018-11-23 01:26:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 121 transitions. [2018-11-23 01:26:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 67. [2018-11-23 01:26:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-23 01:26:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions. [2018-11-23 01:26:38,569 INFO L728 BuchiCegarLoop]: Abstraction has 67 states and 83 transitions. [2018-11-23 01:26:38,570 INFO L608 BuchiCegarLoop]: Abstraction has 67 states and 83 transitions. [2018-11-23 01:26:38,570 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 01:26:38,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 83 transitions. [2018-11-23 01:26:38,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2018-11-23 01:26:38,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:38,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:38,571 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:26:38,571 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-23 01:26:38,571 INFO L794 eck$LassoCheckResult]: Stem: 682#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 683#L14 assume !!(main_~n~0 < 1000000); 656#L15 assume main_~k~0 == main_~n~0; 657#L15-1 main_~i~0 := 0; 658#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 659#L20-2 assume !!(main_~j~0 < main_~n~0); 703#L21 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;__VERIFIER_assert_#in~cond := (if main_~k~0 >= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 708#L4-3 assume !(0 == __VERIFIER_assert_~cond); 707#L4-5 __VERIFIER_assert_#in~cond := (if main_~k~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 706#L4-6 assume !(0 == __VERIFIER_assert_~cond); 705#L4-8 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 699#L20-2 assume !(main_~j~0 < main_~n~0); 701#L19-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 698#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 697#L20-2 [2018-11-23 01:26:38,572 INFO L796 eck$LassoCheckResult]: Loop: 697#L20-2 assume !!(main_~j~0 < main_~n~0); 693#L21 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;__VERIFIER_assert_#in~cond := (if main_~k~0 >= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 694#L4-3 assume !(0 == __VERIFIER_assert_~cond); 704#L4-5 __VERIFIER_assert_#in~cond := (if main_~k~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 702#L4-6 assume !(0 == __VERIFIER_assert_~cond); 700#L4-8 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 697#L20-2 [2018-11-23 01:26:38,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1340048366, now seen corresponding path program 1 times [2018-11-23 01:26:38,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:38,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:38,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:38,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:26:38,605 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 01:26:38,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:38,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:38,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 01:26:38,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-11-23 01:26:38,688 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 01:26:38,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1771408835, now seen corresponding path program 2 times [2018-11-23 01:26:38,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:38,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:38,733 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:38,733 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:38,733 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:38,733 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:38,733 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:26:38,733 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:38,733 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:38,733 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:38,733 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration5_Loop [2018-11-23 01:26:38,733 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:38,733 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:38,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:38,779 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:38,779 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,786 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:38,786 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:38,788 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 01:26:38,788 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,815 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:38,816 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:38,818 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 01:26:38,818 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:38,847 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:38,874 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:26:38,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:39,150 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:26:39,152 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:39,152 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:39,152 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:39,152 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:39,152 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:26:39,152 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:39,153 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:39,153 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:39,153 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration5_Loop [2018-11-23 01:26:39,153 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:39,153 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:39,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,196 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:39,197 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:26:39,197 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 [2018-11-23 01:26:39,197 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,198 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,198 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,198 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,198 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,198 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,198 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,199 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:39,199 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 [2018-11-23 01:26:39,199 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,199 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,200 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,200 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,200 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,200 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,200 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,201 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:39,201 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 [2018-11-23 01:26:39,202 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,202 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,202 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,202 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,202 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,202 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,202 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,204 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:39,204 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 [2018-11-23 01:26:39,204 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,204 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,205 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,205 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,205 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,205 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,205 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,208 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:26:39,211 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 01:26:39,211 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 01:26:39,212 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:26:39,212 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:26:39,212 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:26:39,212 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-23 01:26:39,212 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:26:39,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,246 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 [2018-11-23 01:26:39,247 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24 Second operand 3 states. [2018-11-23 01:26:39,263 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 123 states and 155 transitions. Complement of second has 7 states. [2018-11-23 01:26:39,263 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 [2018-11-23 01:26:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-23 01:26:39,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-23 01:26:39,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,264 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:26:39,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,309 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 01:26:39,309 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24 Second operand 3 states. [2018-11-23 01:26:39,320 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 123 states and 155 transitions. Complement of second has 7 states. [2018-11-23 01:26:39,321 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 [2018-11-23 01:26:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-23 01:26:39,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-23 01:26:39,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,321 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:26:39,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,349 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 2 loop predicates [2018-11-23 01:26:39,349 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24 Second operand 3 states. [2018-11-23 01:26:39,365 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 67 states and 83 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 123 states and 154 transitions. Complement of second has 6 states. [2018-11-23 01:26:39,365 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 [2018-11-23 01:26:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2018-11-23 01:26:39,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-23 01:26:39,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 20 letters. Loop has 6 letters. [2018-11-23 01:26:39,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 14 letters. Loop has 12 letters. [2018-11-23 01:26:39,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 154 transitions. [2018-11-23 01:26:39,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 01:26:39,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 74 states and 92 transitions. [2018-11-23 01:26:39,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-23 01:26:39,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-23 01:26:39,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 92 transitions. [2018-11-23 01:26:39,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:39,369 INFO L705 BuchiCegarLoop]: Abstraction has 74 states and 92 transitions. [2018-11-23 01:26:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 92 transitions. [2018-11-23 01:26:39,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2018-11-23 01:26:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-23 01:26:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2018-11-23 01:26:39,372 INFO L728 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2018-11-23 01:26:39,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 01:26:39,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-23 01:26:39,373 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand 11 states. [2018-11-23 01:26:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:26:39,423 INFO L93 Difference]: Finished difference Result 147 states and 180 transitions. [2018-11-23 01:26:39,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:26:39,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 180 transitions. [2018-11-23 01:26:39,427 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-23 01:26:39,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 143 states and 176 transitions. [2018-11-23 01:26:39,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 01:26:39,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-11-23 01:26:39,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 176 transitions. [2018-11-23 01:26:39,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:26:39,428 INFO L705 BuchiCegarLoop]: Abstraction has 143 states and 176 transitions. [2018-11-23 01:26:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 176 transitions. [2018-11-23 01:26:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2018-11-23 01:26:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-23 01:26:39,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2018-11-23 01:26:39,432 INFO L728 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2018-11-23 01:26:39,432 INFO L608 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2018-11-23 01:26:39,432 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 01:26:39,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 75 transitions. [2018-11-23 01:26:39,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 01:26:39,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:26:39,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:26:39,433 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:26:39,433 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 01:26:39,434 INFO L794 eck$LassoCheckResult]: Stem: 1578#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet5, main_#t~post6, main_#t~post4, main_#t~post3, main_~i~0, main_~j~0, main_~k~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~n~0;main_~k~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 1579#L14 assume !!(main_~n~0 < 1000000); 1558#L15 assume main_~k~0 == main_~n~0; 1559#L15-1 main_~i~0 := 0; 1560#L19-3 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 2 * main_~i~0; 1562#L20-2 assume !!(main_~j~0 < main_~n~0); 1569#L21 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;main_~k~0 := main_~j~0; 1573#L22-2 assume !!(main_~k~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 >= 2 * main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1574#L4 assume !(0 == __VERIFIER_assert_~cond); 1581#L4-2 main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 1582#L22-2 assume !(main_~k~0 < main_~n~0); 1592#L4-8 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 1583#L20-2 assume !!(main_~j~0 < main_~n~0); 1576#L21 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;main_~k~0 := main_~j~0; 1571#L22-2 [2018-11-23 01:26:39,434 INFO L796 eck$LassoCheckResult]: Loop: 1571#L22-2 assume !!(main_~k~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 >= 2 * main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1572#L4 assume !(0 == __VERIFIER_assert_~cond); 1580#L4-2 main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 1571#L22-2 [2018-11-23 01:26:39,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash 279041640, now seen corresponding path program 1 times [2018-11-23 01:26:39,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:39,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:39,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:39,435 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 01:26:39,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:26:39,461 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 01:26:39,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,488 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 01:26:39,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-23 01:26:39,488 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 01:26:39,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash 69739, now seen corresponding path program 2 times [2018-11-23 01:26:39,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:26:39,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:26:39,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:39,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:26:39,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:26:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:26:39,508 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:39,508 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:39,508 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:39,508 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:39,509 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:26:39,509 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:39,509 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:39,509 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:39,509 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration6_Loop [2018-11-23 01:26:39,509 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:39,509 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:39,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,542 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:39,542 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/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 [2018-11-23 01:26:39,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:26:39,543 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72d3d7f1-a240-4608-892c-73648d4cb99c/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:39,560 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:26:39,560 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:26:39,746 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:26:39,747 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:26:39,747 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:26:39,747 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:26:39,748 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:26:39,748 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:26:39,748 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:26:39,748 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:26:39,748 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:26:39,748 INFO L131 ssoRankerPreferences]: Filename of dumped script: nested6_true-unreach-call_true-termination.i_Iteration6_Loop [2018-11-23 01:26:39,748 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:26:39,748 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:26:39,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:26:39,781 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:26:39,781 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:26:39,782 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 [2018-11-23 01:26:39,782 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,782 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,782 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,782 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,783 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,783 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,783 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:26:39,784 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 [2018-11-23 01:26:39,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:26:39,784 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:26:39,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:26:39,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:26:39,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:26:39,790 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:26:39,790 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:26:39,793 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:26:39,796 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 01:26:39,796 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 01:26:39,796 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:26:39,796 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:26:39,796 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:26:39,796 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2018-11-23 01:26:39,797 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:26:39,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,837 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 [2018-11-23 01:26:39,837 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21 Second operand 3 states. [2018-11-23 01:26:39,855 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21. Second operand 3 states. Result 115 states and 147 transitions. Complement of second has 7 states. [2018-11-23 01:26:39,855 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 [2018-11-23 01:26:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-11-23 01:26:39,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 01:26:39,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,856 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:26:39,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,876 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 01:26:39,876 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21 Second operand 3 states. [2018-11-23 01:26:39,888 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21. Second operand 3 states. Result 115 states and 147 transitions. Complement of second has 7 states. [2018-11-23 01:26:39,888 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 [2018-11-23 01:26:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-11-23 01:26:39,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 01:26:39,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,889 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:26:39,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:26:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:26:39,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:26:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:26:39,910 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 2 loop predicates [2018-11-23 01:26:39,910 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21 Second operand 3 states. [2018-11-23 01:26:39,936 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21. Second operand 3 states. Result 94 states and 119 transitions. Complement of second has 6 states. [2018-11-23 01:26:39,936 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 [2018-11-23 01:26:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:26:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2018-11-23 01:26:39,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 01:26:39,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 17 letters. Loop has 3 letters. [2018-11-23 01:26:39,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-23 01:26:39,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:26:39,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 119 transitions. [2018-11-23 01:26:39,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:26:39,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 0 states and 0 transitions. [2018-11-23 01:26:39,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 01:26:39,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 01:26:39,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 01:26:39,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 01:26:39,938 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:26:39,938 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:26:39,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 01:26:39,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 01:26:39,939 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2018-11-23 01:26:39,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:26:39,939 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 01:26:39,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:26:39,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 01:26:39,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 01:26:39,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 01:26:39,939 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 01:26:39,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:26:39,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:26:39,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 01:26:39,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:26:39 BoogieIcfgContainer [2018-11-23 01:26:39,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 01:26:39,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:26:39,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:26:39,944 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:26:39,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:26:36" (3/4) ... [2018-11-23 01:26:39,946 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 01:26:39,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:26:39,947 INFO L168 Benchmark]: Toolchain (without parser) took 3815.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 91.5 MB. Max. memory is 11.5 GB. [2018-11-23 01:26:39,948 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:26:39,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.78 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:26:39,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 945.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:26:39,949 INFO L168 Benchmark]: Boogie Preprocessor took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:26:39,949 INFO L168 Benchmark]: RCFGBuilder took 175.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 01:26:39,950 INFO L168 Benchmark]: BuchiAutomizer took 3434.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:26:39,950 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:26:39,952 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.78 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 945.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3434.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (4 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * j + n and consists of 4 locations. One deterministic module has affine ranking function -1 * k + n and consists of 4 locations. One nondeterministic module has affine ranking function n + -1 * j and consists of 4 locations. One nondeterministic module has affine ranking function -1 * k + n and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 173 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 67 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 189 SDtfs, 349 SDslu, 123 SDs, 0 SdLazy, 297 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf98 lsp85 ukn100 mio100 lsp100 div100 bol100 ite114 ukn100 eq152 hnf93 smp82 dnf98 smp100 tf107 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...