./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-numeric/TwoWay_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_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/TwoWay_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 dd635190a9aa277670265f46b90ecce0c321a2a9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:34:25,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:34:25,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:34:25,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:34:25,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:34:25,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:34:25,917 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:34:25,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:34:25,920 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:34:25,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:34:25,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:34:25,922 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:34:25,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:34:25,924 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:34:25,925 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:34:25,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:34:25,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:34:25,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:34:25,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:34:25,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:34:25,931 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:34:25,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:34:25,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:34:25,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:34:25,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:34:25,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:34:25,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:34:25,937 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:34:25,938 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:34:25,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:34:25,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:34:25,940 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:34:25,940 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:34:25,940 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:34:25,941 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:34:25,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:34:25,942 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 08:34:25,955 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:34:25,955 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:34:25,956 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:34:25,957 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:34:25,957 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:34:25,957 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:34:25,957 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:34:25,957 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:34:25,958 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:34:25,958 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:34:25,958 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:34:25,958 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:34:25,958 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:34:25,959 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:34:25,959 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:34:25,959 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:34:25,959 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:34:25,959 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:34:25,961 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:34:25,961 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:34:25,962 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:34:25,962 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:34:25,962 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:34:25,962 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:34:25,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:34:25,963 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:34:25,963 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:34:25,964 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:34:25,964 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_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 -> dd635190a9aa277670265f46b90ecce0c321a2a9 [2018-11-10 08:34:25,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:34:26,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:34:26,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:34:26,009 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:34:26,009 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:34:26,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-numeric/TwoWay_true-termination_true-no-overflow.c [2018-11-10 08:34:26,065 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/data/5fc66115f/bb457993ecff4ade9ee178d2824bd356/FLAG304b0e3ec [2018-11-10 08:34:26,412 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:34:26,413 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/sv-benchmarks/c/termination-numeric/TwoWay_true-termination_true-no-overflow.c [2018-11-10 08:34:26,418 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/data/5fc66115f/bb457993ecff4ade9ee178d2824bd356/FLAG304b0e3ec [2018-11-10 08:34:26,428 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/bin-2019/uautomizer/data/5fc66115f/bb457993ecff4ade9ee178d2824bd356 [2018-11-10 08:34:26,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:34:26,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:34:26,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:34:26,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:34:26,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:34:26,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a19dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26, skipping insertion in model container [2018-11-10 08:34:26,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:34:26,463 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:34:26,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:34:26,584 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:34:26,597 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:34:26,607 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:34:26,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26 WrapperNode [2018-11-10 08:34:26,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:34:26,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:34:26,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:34:26,609 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:34:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:34:26,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:34:26,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:34:26,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:34:26,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... [2018-11-10 08:34:26,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:34:26,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:34:26,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:34:26,644 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:34:26,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure twoWay [2018-11-10 08:34:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure twoWay [2018-11-10 08:34:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:34:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:34:26,850 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:34:26,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:34:26 BoogieIcfgContainer [2018-11-10 08:34:26,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:34:26,851 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:34:26,851 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:34:26,854 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:34:26,854 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:34:26,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:34:26" (1/3) ... [2018-11-10 08:34:26,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75d75b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:34:26, skipping insertion in model container [2018-11-10 08:34:26,855 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:34:26,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:34:26" (2/3) ... [2018-11-10 08:34:26,856 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75d75b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:34:26, skipping insertion in model container [2018-11-10 08:34:26,856 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:34:26,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:34:26" (3/3) ... [2018-11-10 08:34:26,858 INFO L375 chiAutomizerObserver]: Analyzing ICFG TwoWay_true-termination_true-no-overflow.c [2018-11-10 08:34:26,910 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:34:26,911 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:34:26,911 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:34:26,911 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:34:26,911 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:34:26,911 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:34:26,911 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:34:26,911 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:34:26,912 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:34:26,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 08:34:26,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:34:26,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:34:26,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:34:26,948 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 08:34:26,948 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:34:26,948 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:34:26,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 08:34:26,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:34:26,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:34:26,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:34:26,950 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 08:34:26,950 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:34:26,960 INFO L793 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~ret6, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L42true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 16#L45true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L48true call main_#t~ret6 := twoWay(1, main_~x~0);< 12#twoWayENTRYtrue [2018-11-10 08:34:26,960 INFO L795 eck$LassoCheckResult]: Loop: 12#twoWayENTRYtrue ~terminate := #in~terminate;~n := #in~n; 18#L27true assume !(~n < 0);~m~0 := ~n; 8#L31true assume ~terminate != 0;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 6#L31-2true call #t~ret2 := twoWay(~terminate, ~m~0);< 12#twoWayENTRYtrue [2018-11-10 08:34:26,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:26,966 INFO L82 PathProgramCache]: Analyzing trace with hash 42056122, now seen corresponding path program 1 times [2018-11-10 08:34:26,968 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:34:26,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:34:27,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:34:27,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:27,052 INFO L82 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times [2018-11-10 08:34:27,052 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:34:27,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:34:27,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:34:27,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash 322591927, now seen corresponding path program 1 times [2018-11-10 08:34:27,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:34:27,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:34:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:34:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:27,186 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:34:27,187 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:34:27,188 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:34:27,188 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:34:27,188 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:34:27,188 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:34:27,188 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:34:27,188 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:34:27,188 INFO L131 ssoRankerPreferences]: Filename of dumped script: TwoWay_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:34:27,189 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:34:27,189 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:34:27,211 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 08:34:27,220 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 08:34:27,227 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 08:34:27,232 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 08:34:27,237 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 08:34:27,243 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 08:34:27,258 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 08:34:27,260 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 08:34:27,264 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 08:34:27,359 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:34:27,359 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,373 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:27,373 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:27,383 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:27,383 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:27,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:27,408 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:27,408 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~m~0=0} Honda state: {twoWay_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,429 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:27,429 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:27,432 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:27,432 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:27,453 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:27,455 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:27,455 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~n=0} Honda state: {twoWay_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,475 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:27,475 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:27,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:34:27,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:27,562 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:34:27,563 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:34:27,563 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:34:27,563 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:34:27,564 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:34:27,564 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:34:27,564 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:34:27,564 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:34:27,564 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:34:27,564 INFO L131 ssoRankerPreferences]: Filename of dumped script: TwoWay_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:34:27,564 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:34:27,564 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:34:27,566 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 08:34:27,567 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 08:34:27,569 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 08:34:27,584 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 08:34:27,586 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 08:34:27,591 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 08:34:27,593 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 08:34:27,596 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 08:34:27,598 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 08:34:27,655 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:34:27,658 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:34:27,660 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 08:34:27,661 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:27,661 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:27,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:27,662 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:27,662 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:27,664 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:27,664 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:27,668 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:27,668 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 08:34:27,669 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:27,669 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:27,669 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:27,669 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:27,669 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:27,670 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:27,670 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:27,671 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:27,672 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 08:34:27,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:27,672 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:27,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:27,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:27,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:27,673 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:27,673 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:27,679 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:34:27,683 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:34:27,683 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:34:27,685 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:34:27,685 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:34:27,685 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:34:27,685 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(twoWay_#in~n) = 2*twoWay_#in~n + 1 Supporting invariants [] [2018-11-10 08:34:27,686 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:34:27,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:34:27,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:34:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:34:27,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:34:27,806 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 08:34:27,818 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-11-10 08:34:27,819 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2018-11-10 08:34:28,030 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 45 states and 57 transitions. Complement of second has 16 states. [2018-11-10 08:34:28,031 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 08:34:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 08:34:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-10 08:34:28,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-10 08:34:28,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:28,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 08:34:28,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:28,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-10 08:34:28,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:28,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2018-11-10 08:34:28,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:34:28,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 26 transitions. [2018-11-10 08:34:28,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-10 08:34:28,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-10 08:34:28,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2018-11-10 08:34:28,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:34:28,051 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-11-10 08:34:28,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2018-11-10 08:34:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2018-11-10 08:34:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 08:34:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-11-10 08:34:28,081 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-10 08:34:28,082 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-10 08:34:28,082 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:34:28,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2018-11-10 08:34:28,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:34:28,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:34:28,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:34:28,083 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:34:28,083 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:34:28,084 INFO L793 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~ret6, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 131#L42 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 132#L45 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 133#L48 call main_#t~ret6 := twoWay(1, main_~x~0);< 134#twoWayENTRY ~terminate := #in~terminate;~n := #in~n; 142#L27 assume !(~n < 0);~m~0 := ~n; 143#L31 assume !(~terminate != 0);#t~post1 := ~m~0;~m~0 := #t~post1 + 1;havoc #t~post1; 137#L31-2 [2018-11-10 08:34:28,084 INFO L795 eck$LassoCheckResult]: Loop: 137#L31-2 call #t~ret2 := twoWay(~terminate, ~m~0);< 136#twoWayENTRY ~terminate := #in~terminate;~n := #in~n; 138#L27 assume !(~n < 0);~m~0 := ~n; 145#L31 assume ~terminate != 0;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 137#L31-2 [2018-11-10 08:34:28,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:28,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1236519797, now seen corresponding path program 1 times [2018-11-10 08:34:28,084 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:34:28,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:34:28,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:28,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:34:28,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:34:28,136 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 08:34:28,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:34:28,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:34:28,141 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:34:28,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:28,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1876964, now seen corresponding path program 2 times [2018-11-10 08:34:28,141 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:34:28,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:34:28,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:28,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:34:28,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:34:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:34:28,224 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:34:28,224 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:34:28,224 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:34:28,224 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:34:28,224 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:34:28,224 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:34:28,224 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:34:28,225 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:34:28,225 INFO L131 ssoRankerPreferences]: Filename of dumped script: TwoWay_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 08:34:28,225 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:34:28,225 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:34:28,226 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 08:34:28,232 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 08:34:28,234 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 08:34:28,236 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 08:34:28,238 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 08:34:28,248 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 08:34:28,323 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:34:28,323 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:28,332 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:28,332 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,354 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:28,357 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:28,357 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post0=0} Honda state: {twoWay_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:28,382 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:28,382 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post1=0} Honda state: {twoWay_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:28,408 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:28,408 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,438 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:28,442 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:34:28,442 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#in~terminate=7, twoWay_~terminate=7} Honda state: {twoWay_#in~terminate=7, twoWay_~terminate=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:34:28,464 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72a008a3-9e1e-4800-9d48-1b469f2612a3/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 08:34:28,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:34:28,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:34:38,619 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:34:38,621 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:34:38,621 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:34:38,621 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:34:38,621 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:34:38,621 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:34:38,621 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:34:38,622 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:34:38,622 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:34:38,622 INFO L131 ssoRankerPreferences]: Filename of dumped script: TwoWay_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 08:34:38,622 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:34:38,622 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:34:38,623 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 08:34:38,625 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 08:34:38,626 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 08:34:38,631 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 08:34:38,632 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 08:34:38,634 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 08:34:38,742 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:34:38,742 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:34:38,743 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 08:34:38,744 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,744 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,744 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,744 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:38,744 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,745 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:38,745 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,746 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:38,747 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 08:34:38,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,748 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,748 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,748 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:38,748 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,749 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:38,749 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,750 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:38,751 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 08:34:38,751 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,752 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,752 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 08:34:38,752 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,753 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 08:34:38,754 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,763 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:38,764 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 08:34:38,765 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,766 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:38,767 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:38,767 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,768 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:38,769 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 08:34:38,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,769 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:38,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:38,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,772 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:34:38,772 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 08:34:38,773 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:34:38,773 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:34:38,773 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:34:38,773 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:34:38,773 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:34:38,774 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:34:38,774 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:34:38,781 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:34:38,786 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:34:38,786 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:34:38,786 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:34:38,786 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:34:38,787 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:34:38,787 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(twoWay_~m~0) = 2*twoWay_~m~0 + 1 Supporting invariants [] [2018-11-10 08:34:38,787 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:34:38,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:34:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:34:38,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:34:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:34:38,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:34:38,880 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 08:34:38,880 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-11-10 08:34:38,881 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 5 states. [2018-11-10 08:34:38,970 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 26 states and 31 transitions. Complement of second has 11 states. [2018-11-10 08:34:38,971 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 08:34:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 08:34:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2018-11-10 08:34:38,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-10 08:34:38,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:38,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-10 08:34:38,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:38,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 8 letters. [2018-11-10 08:34:38,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:34:38,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2018-11-10 08:34:38,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:34:38,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2018-11-10 08:34:38,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-10 08:34:38,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-10 08:34:38,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2018-11-10 08:34:38,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:34:38,978 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-11-10 08:34:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2018-11-10 08:34:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-11-10 08:34:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 08:34:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-11-10 08:34:38,981 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-10 08:34:38,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 08:34:38,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:34:38,986 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2018-11-10 08:34:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:34:39,000 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-10 08:34:39,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 08:34:39,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2018-11-10 08:34:39,001 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:34:39,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2018-11-10 08:34:39,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:34:39,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:34:39,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:34:39,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:34:39,002 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:34:39,002 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:34:39,002 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:34:39,002 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:34:39,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:34:39,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:34:39,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:34:39,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:34:39 BoogieIcfgContainer [2018-11-10 08:34:39,007 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:34:39,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:34:39,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:34:39,008 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:34:39,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:34:26" (3/4) ... [2018-11-10 08:34:39,011 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:34:39,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:34:39,012 INFO L168 Benchmark]: Toolchain (without parser) took 12580.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 958.5 MB in the beginning and 863.3 MB in the end (delta: 95.1 MB). Peak memory consumption was 221.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:34:39,013 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:34:39,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:34:39,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.73 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:34:39,015 INFO L168 Benchmark]: Boogie Preprocessor took 12.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:34:39,015 INFO L168 Benchmark]: RCFGBuilder took 206.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:34:39,016 INFO L168 Benchmark]: BuchiAutomizer took 12156.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.3 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:34:39,017 INFO L168 Benchmark]: Witness Printer took 3.30 ms. Allocated memory is still 1.2 GB. Free memory is still 863.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:34:39,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 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 22.73 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12156.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.3 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.30 ms. Allocated memory is still 1.2 GB. Free memory is still 863.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * \old(n) + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * m + 1 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 11.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 30 SDtfs, 31 SDslu, 11 SDs, 0 SdLazy, 51 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf98 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp100 dnf137 smp100 tf106 neg93 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...