./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d80b45a01c32727728c3a89e06c1e9a4dc4868b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:21:09,691 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:21:09,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:21:09,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:21:09,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:21:09,702 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:21:09,703 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:21:09,704 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:21:09,705 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:21:09,706 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:21:09,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:21:09,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:21:09,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:21:09,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:21:09,712 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:21:09,713 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:21:09,714 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:21:09,715 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:21:09,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:21:09,718 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:21:09,718 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:21:09,719 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:21:09,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:21:09,721 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:21:09,721 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:21:09,721 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:21:09,722 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:21:09,723 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:21:09,723 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:21:09,724 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:21:09,724 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:21:09,724 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:21:09,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:21:09,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:21:09,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:21:09,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:21:09,726 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 06:21:09,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:21:09,737 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:21:09,738 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:21:09,738 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:21:09,738 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 06:21:09,738 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 06:21:09,738 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 06:21:09,738 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 06:21:09,738 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 06:21:09,739 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:21:09,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 06:21:09,740 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:21:09,740 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:21:09,741 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 06:21:09,741 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:21:09,741 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 06:21:09,741 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 06:21:09,742 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 06:21:09,742 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_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d80b45a01c32727728c3a89e06c1e9a4dc4868b [2018-11-10 06:21:09,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:21:09,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:21:09,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:21:09,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:21:09,782 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:21:09,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-10 06:21:09,824 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/data/64d87eb41/b21f1acb06e242029884c72eea361281/FLAGa91aa5b56 [2018-11-10 06:21:10,137 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:21:10,137 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-10 06:21:10,142 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/data/64d87eb41/b21f1acb06e242029884c72eea361281/FLAGa91aa5b56 [2018-11-10 06:21:10,151 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/data/64d87eb41/b21f1acb06e242029884c72eea361281 [2018-11-10 06:21:10,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:21:10,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:21:10,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:21:10,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:21:10,159 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:21:10,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133164ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10, skipping insertion in model container [2018-11-10 06:21:10,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:21:10,180 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:21:10,285 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:21:10,287 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:21:10,298 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:21:10,307 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:21:10,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10 WrapperNode [2018-11-10 06:21:10,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:21:10,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:21:10,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:21:10,308 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:21:10,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:21:10,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:21:10,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:21:10,334 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:21:10,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... [2018-11-10 06:21:10,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:21:10,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:21:10,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:21:10,348 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:21:10,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:21:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:21:10,543 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:21:10,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:21:10 BoogieIcfgContainer [2018-11-10 06:21:10,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:21:10,545 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 06:21:10,545 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 06:21:10,548 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 06:21:10,549 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:21:10,549 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 06:21:10" (1/3) ... [2018-11-10 06:21:10,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2213393d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:21:10, skipping insertion in model container [2018-11-10 06:21:10,551 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:21:10,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:21:10" (2/3) ... [2018-11-10 06:21:10,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2213393d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:21:10, skipping insertion in model container [2018-11-10 06:21:10,551 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:21:10,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:21:10" (3/3) ... [2018-11-10 06:21:10,553 INFO L375 chiAutomizerObserver]: Analyzing ICFG Log_true-termination_true-no-overflow.c [2018-11-10 06:21:10,605 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:21:10,606 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 06:21:10,606 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 06:21:10,606 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 06:21:10,606 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:21:10,607 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:21:10,607 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 06:21:10,607 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:21:10,607 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 06:21:10,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 06:21:10,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 06:21:10,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:10,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:10,644 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 06:21:10,644 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 06:21:10,644 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 06:21:10,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 06:21:10,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 06:21:10,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:10,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:10,645 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 06:21:10,645 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 06:21:10,650 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 4#L13-3true [2018-11-10 06:21:10,650 INFO L795 eck$LassoCheckResult]: Loop: 4#L13-3true assume true; 8#L13-1true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 12#L17-3true assume !true; 10#L17-4true main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 4#L13-3true [2018-11-10 06:21:10,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,654 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 06:21:10,656 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:10,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-10 06:21:10,721 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:10,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:10,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:21:10,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:21:10,748 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 06:21:10,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:21:10,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:21:10,760 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-10 06:21:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:21:10,765 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-10 06:21:10,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:21:10,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-10 06:21:10,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 06:21:10,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-10 06:21:10,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 06:21:10,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 06:21:10,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-10 06:21:10,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:21:10,772 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 06:21:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-10 06:21:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-10 06:21:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-10 06:21:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-10 06:21:10,792 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 06:21:10,792 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 06:21:10,792 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 06:21:10,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-10 06:21:10,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 06:21:10,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:10,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:10,793 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 06:21:10,793 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 06:21:10,794 INFO L793 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 31#L13-3 [2018-11-10 06:21:10,794 INFO L795 eck$LassoCheckResult]: Loop: 31#L13-3 assume true; 32#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 36#L17-3 assume true; 34#L17-1 assume !(main_~xtmp~0 > 1); 35#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 31#L13-3 [2018-11-10 06:21:10,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,794 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 06:21:10,794 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:10,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,799 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-10 06:21:10,800 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,801 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:21:10,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:10,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:21:10,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 06:21:10,839 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 06:21:10,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 06:21:10,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 06:21:10,839 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 06:21:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:21:10,849 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-11-10 06:21:10,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 06:21:10,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-10 06:21:10,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-10 06:21:10,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2018-11-10 06:21:10,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 06:21:10,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-10 06:21:10,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2018-11-10 06:21:10,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:21:10,851 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 06:21:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2018-11-10 06:21:10,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-10 06:21:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-10 06:21:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-11-10 06:21:10,852 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 06:21:10,852 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 06:21:10,852 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 06:21:10,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-11-10 06:21:10,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-10 06:21:10,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:10,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:10,853 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 06:21:10,853 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2018-11-10 06:21:10,853 INFO L793 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 52#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 53#L13-3 [2018-11-10 06:21:10,853 INFO L795 eck$LassoCheckResult]: Loop: 53#L13-3 assume true; 54#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 58#L17-3 assume true; 55#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 56#L17-3 assume true; 60#L17-1 assume !(main_~xtmp~0 > 1); 59#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 53#L13-3 [2018-11-10 06:21:10,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,854 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-10 06:21:10,854 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:10,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1163104599, now seen corresponding path program 1 times [2018-11-10 06:21:10,858 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,859 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:21:10,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:10,869 INFO L82 PathProgramCache]: Analyzing trace with hash 383192231, now seen corresponding path program 1 times [2018-11-10 06:21:10,869 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:10,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:10,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:10,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:10,953 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:10,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:10,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:10,955 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:10,955 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 06:21:10,955 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:10,955 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:10,955 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:10,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 06:21:10,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:10,956 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:10,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:10,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:10,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:10,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:10,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,105 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:11,105 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,140 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:11,140 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,143 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,162 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:11,163 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,165 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,184 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:21:11,184 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,210 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:11,210 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=-1}, {ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-5}] Lambdas: [8, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,226 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,227 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,243 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:11,243 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=1} Honda state: {ULTIMATE.start_main_~restmp~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,246 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:21:11,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,546 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 06:21:11,548 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:11,548 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:11,548 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:11,548 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:11,548 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:21:11,548 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,548 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:11,548 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:11,548 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 06:21:11,548 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:11,548 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:11,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,625 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:11,629 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:21:11,631 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:11,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:11,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:11,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:11,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:11,635 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:21:11,636 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:21:11,641 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:11,641 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:11,642 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:11,642 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:11,642 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:11,642 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:11,644 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:21:11,644 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:21:11,651 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:11,651 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:11,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:11,652 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:11,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:11,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:11,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:11,653 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:11,653 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:11,656 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:11,656 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:11,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:11,657 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:11,657 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:11,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:11,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:11,658 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:11,658 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:11,661 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:11,662 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:11,662 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:11,662 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:11,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:11,663 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:11,663 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:11,663 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:11,664 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:11,671 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:21:11,675 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 06:21:11,676 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 06:21:11,677 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:21:11,678 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 06:21:11,678 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:21:11,678 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 06:21:11,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 06:21:11,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:11,715 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:11,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 06:21:11,743 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 06:21:11,744 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-11-10 06:21:11,846 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 16 states and 19 transitions. Complement of second has 8 states. [2018-11-10 06:21:11,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-10 06:21:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 06:21:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2018-11-10 06:21:11,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 7 letters. [2018-11-10 06:21:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 9 letters. Loop has 7 letters. [2018-11-10 06:21:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 14 letters. [2018-11-10 06:21:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:11,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2018-11-10 06:21:11,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:21:11,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 18 transitions. [2018-11-10 06:21:11,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 06:21:11,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 06:21:11,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2018-11-10 06:21:11,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 06:21:11,851 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 06:21:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2018-11-10 06:21:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-11-10 06:21:11,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-10 06:21:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-11-10 06:21:11,853 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-10 06:21:11,853 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-10 06:21:11,853 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 06:21:11,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2018-11-10 06:21:11,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:21:11,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:11,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:11,854 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 06:21:11,854 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 06:21:11,854 INFO L793 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 134#L13-3 assume true; 136#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 140#L17-3 [2018-11-10 06:21:11,854 INFO L795 eck$LassoCheckResult]: Loop: 140#L17-3 assume true; 139#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 140#L17-3 [2018-11-10 06:21:11,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:11,855 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-10 06:21:11,855 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:11,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:11,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:11,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:11,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-10 06:21:11,861 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:11,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:11,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:11,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:11,867 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-10 06:21:11,867 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:11,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:11,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:11,886 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:11,886 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:11,886 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:11,886 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:11,886 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 06:21:11,887 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,887 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:11,887 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:11,887 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 06:21:11,887 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:11,887 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:11,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:11,958 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:11,958 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,961 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:11,981 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:11,981 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:11,985 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:11,986 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:21:12,006 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,031 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:12,031 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=-2}, {ULTIMATE.start_main_~restmp~0=6}, {ULTIMATE.start_main_~restmp~0=-3}] Lambdas: [4, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:12,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,073 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:12,073 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,076 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:12,076 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,095 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:21:12,095 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,112 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 06:21:12,113 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:12,113 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:12,114 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:12,114 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:12,114 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:21:12,114 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,114 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:12,114 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:12,114 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 06:21:12,114 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:12,114 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:12,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,160 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:12,160 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:21:12,160 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,161 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,161 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,162 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,163 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:21:12,163 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:21:12,170 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:12,170 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,171 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,171 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:12,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,173 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:12,173 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:12,176 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:12,177 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,178 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,179 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:21:12,179 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:21:12,186 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:12,186 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,187 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,187 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:12,187 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,187 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,187 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,188 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:12,188 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:12,192 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:21:12,194 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 06:21:12,195 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 06:21:12,195 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:21:12,195 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 06:21:12,195 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:21:12,195 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-10 06:21:12,196 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 06:21:12,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:12,216 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:21:12,216 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 06:21:12,226 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 33 states and 39 transitions. Complement of second has 5 states. [2018-11-10 06:21:12,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:21:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:21:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 06:21:12,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 06:21:12,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 06:21:12,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 06:21:12,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2018-11-10 06:21:12,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:21:12,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 23 states and 27 transitions. [2018-11-10 06:21:12,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 06:21:12,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 06:21:12,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2018-11-10 06:21:12,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 06:21:12,231 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2018-11-10 06:21:12,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2018-11-10 06:21:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2018-11-10 06:21:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 06:21:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-10 06:21:12,233 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-10 06:21:12,233 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-10 06:21:12,233 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 06:21:12,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2018-11-10 06:21:12,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:21:12,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:21:12,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:21:12,234 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-11-10 06:21:12,234 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 06:21:12,235 INFO L793 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 218#L13-3 assume true; 219#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 230#L17-3 assume true; 231#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 234#L17-3 assume true; 232#L17-1 assume !(main_~xtmp~0 > 1); 229#L17-4 main_~x~0 := main_~xtmp~0;main_~res~0 := main_~res~0 + 1; 220#L13-3 assume true; 222#L13-1 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 224#L17-3 [2018-11-10 06:21:12,235 INFO L795 eck$LassoCheckResult]: Loop: 224#L17-3 assume true; 223#L17-1 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := main_~restmp~0 + 1; 224#L17-3 [2018-11-10 06:21:12,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1119453267, now seen corresponding path program 2 times [2018-11-10 06:21:12,235 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:12,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:12,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:12,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:21:12,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 06:21:12,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:21:12,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 06:21:12,262 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 06:21:12,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-11-10 06:21:12,262 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:21:12,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:21:12,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:12,263 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:21:12,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:21:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:21:12,279 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:12,279 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:12,279 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:12,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:12,279 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 06:21:12,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:12,280 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:12,280 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-10 06:21:12,280 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:12,280 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:12,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,337 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:12,337 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,339 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:12,339 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,357 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:12,357 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:12,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,386 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:21:12,386 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/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 [2018-11-10 06:21:12,389 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:21:12,389 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a1ca37f-5e95-4bb2-a608-4157674511c2/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,410 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:21:12,410 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:21:12,428 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 06:21:12,429 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:21:12,429 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:21:12,429 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:21:12,429 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:21:12,429 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:21:12,429 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:21:12,430 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:21:12,430 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:21:12,430 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-10 06:21:12,430 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:21:12,430 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:21:12,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:21:12,471 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:21:12,472 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:21:12,472 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,473 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,473 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,473 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,473 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,474 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:21:12,474 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:21:12,477 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:21:12,478 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:21:12,478 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:21:12,478 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:21:12,478 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:21:12,478 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:21:12,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:21:12,479 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:21:12,479 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:21:12,481 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:21:12,483 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 06:21:12,483 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 06:21:12,483 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:21:12,484 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 06:21:12,484 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:21:12,484 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-10 06:21:12,484 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 06:21:12,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:12,518 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:21:12,518 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 06:21:12,527 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 33 transitions. Complement of second has 5 states. [2018-11-10 06:21:12,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:21:12,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:21:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 06:21:12,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-10 06:21:12,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,528 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 06:21:12,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:12,546 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:21:12,546 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 06:21:12,557 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 33 transitions. Complement of second has 5 states. [2018-11-10 06:21:12,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:21:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:21:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 06:21:12,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-10 06:21:12,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,558 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 06:21:12,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:21:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:21:12,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:21:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:21:12,576 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:21:12,577 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 06:21:12,583 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 4 states. [2018-11-10 06:21:12,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:21:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:21:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-11-10 06:21:12,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-10 06:21:12,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-10 06:21:12,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-10 06:21:12,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:21:12,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-10 06:21:12,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:21:12,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2018-11-10 06:21:12,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 06:21:12,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 06:21:12,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 06:21:12,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:21:12,587 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:21:12,587 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:21:12,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:21:12,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:21:12,587 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-10 06:21:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:21:12,587 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-10 06:21:12,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:21:12,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:21:12,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 06:21:12,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 06:21:12,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:21:12,588 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:21:12,588 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 06:21:12,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:21:12,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:21:12,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 06:21:12,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 06:21:12 BoogieIcfgContainer [2018-11-10 06:21:12,594 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 06:21:12,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:21:12,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:21:12,594 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:21:12,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:21:10" (3/4) ... [2018-11-10 06:21:12,597 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 06:21:12,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:21:12,598 INFO L168 Benchmark]: Toolchain (without parser) took 2444.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 960.2 MB in the beginning and 882.6 MB in the end (delta: 77.6 MB). Peak memory consumption was 233.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:12,599 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:21:12,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.89 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:12,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.74 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:21:12,600 INFO L168 Benchmark]: Boogie Preprocessor took 13.87 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 945.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:12,600 INFO L168 Benchmark]: RCFGBuilder took 196.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:12,601 INFO L168 Benchmark]: BuchiAutomizer took 2049.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.6 MB in the end (delta: 262.7 MB). Peak memory consumption was 262.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:12,601 INFO L168 Benchmark]: Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 882.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:21:12,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.89 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 25.74 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.87 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 945.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 196.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2049.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.6 MB in the end (delta: 262.7 MB). Peak memory consumption was 262.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 882.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 57 SDtfs, 41 SDslu, 16 SDs, 0 SdLazy, 35 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...