./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:42:36,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:42:36,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:42:36,230 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:42:36,230 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:42:36,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:42:36,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:42:36,232 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:42:36,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:42:36,233 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:42:36,233 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:42:36,234 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:42:36,234 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:42:36,235 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:42:36,235 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:42:36,236 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:42:36,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:42:36,237 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:42:36,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:42:36,239 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:42:36,240 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:42:36,240 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:42:36,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:42:36,242 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:42:36,242 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:42:36,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:42:36,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:42:36,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:42:36,243 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:42:36,244 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:42:36,244 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:42:36,244 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:42:36,244 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:42:36,244 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:42:36,245 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:42:36,245 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:42:36,245 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 13:42:36,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:42:36,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:42:36,254 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:42:36,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:42:36,254 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 13:42:36,255 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 13:42:36,255 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 13:42:36,255 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 13:42:36,255 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 13:42:36,255 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 13:42:36,255 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 13:42:36,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 13:42:36,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 13:42:36,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:42:36,257 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 13:42:36,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:42:36,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 13:42:36,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:42:36,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:42:36,258 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 13:42:36,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:42:36,258 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 13:42:36,258 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 13:42:36,259 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 13:42:36,259 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_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-12-02 13:42:36,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:42:36,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:42:36,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:42:36,291 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:42:36,291 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:42:36,292 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-02 13:42:36,324 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/data/950d7dcf2/49d40f857902423799830c22b912511b/FLAG5401bdb6a [2018-12-02 13:42:36,694 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:42:36,694 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-02 13:42:36,698 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/data/950d7dcf2/49d40f857902423799830c22b912511b/FLAG5401bdb6a [2018-12-02 13:42:36,705 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/data/950d7dcf2/49d40f857902423799830c22b912511b [2018-12-02 13:42:36,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:42:36,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:42:36,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:42:36,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:42:36,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:42:36,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36, skipping insertion in model container [2018-12-02 13:42:36,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:42:36,725 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:42:36,804 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:42:36,807 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:42:36,815 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:42:36,823 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:42:36,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36 WrapperNode [2018-12-02 13:42:36,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:42:36,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:42:36,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:42:36,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:42:36,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:42:36,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:42:36,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:42:36,842 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:42:36,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... [2018-12-02 13:42:36,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:42:36,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:42:36,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:42:36,853 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:42:36,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:42:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:42:36,988 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:42:36,989 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 13:42:36,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:36 BoogieIcfgContainer [2018-12-02 13:42:36,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:42:36,989 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 13:42:36,989 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 13:42:36,991 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 13:42:36,992 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:42:36,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:42:36" (1/3) ... [2018-12-02 13:42:36,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2801c11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:42:36, skipping insertion in model container [2018-12-02 13:42:36,993 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:42:36,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:36" (2/3) ... [2018-12-02 13:42:36,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2801c11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:42:36, skipping insertion in model container [2018-12-02 13:42:36,993 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:42:36,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:36" (3/3) ... [2018-12-02 13:42:36,994 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-02 13:42:37,028 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 13:42:37,028 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 13:42:37,028 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 13:42:37,029 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 13:42:37,029 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:42:37,029 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:42:37,029 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 13:42:37,029 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:42:37,029 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 13:42:37,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 13:42:37,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 13:42:37,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:37,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:37,055 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 13:42:37,055 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 13:42:37,055 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 13:42:37,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 13:42:37,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 13:42:37,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:37,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:37,056 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 13:42:37,056 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 13:42:37,060 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L23-2true [2018-12-02 13:42:37,061 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 5#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 4#L23-2true [2018-12-02 13:42:37,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,064 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 13:42:37,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-02 13:42:37,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-02 13:42:37,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,178 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:37,178 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:37,179 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:37,179 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:37,179 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:37,179 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:37,179 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:37,179 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:37,179 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 13:42:37,179 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:37,179 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:37,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,272 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:37,273 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,276 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,276 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,294 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,294 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,318 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,319 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,321 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,321 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,337 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:37,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,354 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:37,355 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:37,355 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:37,355 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:37,355 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:37,356 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:37,356 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:37,356 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:37,356 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:37,356 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 13:42:37,356 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:37,356 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:37,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,402 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:37,405 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:37,406 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 [2018-12-02 13:42:37,407 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,407 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,407 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,407 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,410 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:37,410 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:37,415 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:37,416 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 [2018-12-02 13:42:37,416 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,416 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,418 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:37,418 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:37,422 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:37,422 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 [2018-12-02 13:42:37,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:37,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,423 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:37,423 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:37,426 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:37,428 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:37,428 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:37,430 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:37,430 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:37,430 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:37,430 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 13:42:37,431 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:37,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:37,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:37,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:37,479 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:37,480 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-02 13:42:37,508 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-12-02 13:42:37,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 13:42:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-12-02 13:42:37,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 13:42:37,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 13:42:37,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-02 13:42:37,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-12-02 13:42:37,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-02 13:42:37,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2018-12-02 13:42:37,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-02 13:42:37,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-02 13:42:37,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-12-02 13:42:37,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 13:42:37,518 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-02 13:42:37,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-12-02 13:42:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-02 13:42:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-02 13:42:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-12-02 13:42:37,535 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-02 13:42:37,535 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-02 13:42:37,535 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 13:42:37,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-12-02 13:42:37,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-02 13:42:37,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:37,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:37,536 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 13:42:37,536 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 13:42:37,536 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-12-02 13:42:37,536 INFO L796 eck$LassoCheckResult]: Loop: 82#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 83#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 87#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-12-02 13:42:37,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-02 13:42:37,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,543 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-12-02 13:42:37,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,548 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-12-02 13:42:37,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,580 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:37,580 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:37,580 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:37,580 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:37,580 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:37,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:37,580 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:37,580 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:37,580 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 13:42:37,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:37,580 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:37,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,634 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:37,634 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,652 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,652 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,654 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,656 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,656 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,671 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,671 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,686 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,686 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,689 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:37,706 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,747 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:37,748 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:37,748 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:37,748 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:37,748 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:37,748 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:37,748 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:37,748 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:37,748 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:37,748 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 13:42:37,748 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:37,749 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:37,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,808 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:37,808 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:37,808 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 [2018-12-02 13:42:37,809 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,809 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,809 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,809 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,810 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:37,811 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:37,813 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:37,814 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 [2018-12-02 13:42:37,814 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,814 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:37,814 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,814 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,814 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,815 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:37,815 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:37,816 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:37,816 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 [2018-12-02 13:42:37,817 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,817 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,817 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,817 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,818 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:37,818 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:37,821 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:37,821 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 [2018-12-02 13:42:37,822 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:37,822 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:37,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:37,822 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:37,822 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:37,823 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:37,823 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:37,825 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:37,827 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:37,827 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:37,827 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:37,827 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:37,828 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:37,828 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-02 13:42:37,828 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:37,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:37,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:37,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:37,855 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:37,855 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-02 13:42:37,868 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-12-02 13:42:37,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 13:42:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-12-02 13:42:37,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2018-12-02 13:42:37,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-02 13:42:37,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-12-02 13:42:37,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:37,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-12-02 13:42:37,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 13:42:37,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2018-12-02 13:42:37,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-02 13:42:37,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-12-02 13:42:37,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2018-12-02 13:42:37,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 13:42:37,872 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2018-12-02 13:42:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2018-12-02 13:42:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-12-02 13:42:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 13:42:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2018-12-02 13:42:37,874 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-12-02 13:42:37,874 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-12-02 13:42:37,874 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 13:42:37,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2018-12-02 13:42:37,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 13:42:37,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:37,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:37,876 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 13:42:37,876 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 13:42:37,876 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 168#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-12-02 13:42:37,876 INFO L796 eck$LassoCheckResult]: Loop: 164#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 174#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 180#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-12-02 13:42:37,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,876 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-12-02 13:42:37,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,882 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-12-02 13:42:37,882 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:37,887 INFO L82 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2018-12-02 13:42:37,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:37,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:37,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:37,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:37,914 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:37,914 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:37,914 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:37,914 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:37,914 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:37,914 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:37,914 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:37,914 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:37,915 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 13:42:37,915 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:37,915 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:37,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:37,978 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:37,978 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,980 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:37,983 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:37,983 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:37,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:37,998 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,000 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,000 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,014 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,014 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,029 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,029 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,047 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,047 INFO L448 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_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,050 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,050 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,066 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:38,066 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,106 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:38,107 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,107 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:38,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 13:42:38,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,108 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,174 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,174 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:38,175 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 [2018-12-02 13:42:38,175 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,175 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,176 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,176 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,177 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,178 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 [2018-12-02 13:42:38,178 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,178 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,178 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,178 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,179 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,179 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,179 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,180 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,180 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 [2018-12-02 13:42:38,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,181 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,181 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,181 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,182 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,182 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,183 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 [2018-12-02 13:42:38,183 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,183 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,183 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,184 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,184 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,186 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:38,188 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:38,189 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:38,189 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:38,189 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:38,189 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:38,189 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-02 13:42:38,190 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:38,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:38,220 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 [2018-12-02 13:42:38,220 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand 4 states. [2018-12-02 13:42:38,233 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 54 states and 85 transitions. Complement of second has 7 states. [2018-12-02 13:42:38,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 13:42:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-02 13:42:38,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2018-12-02 13:42:38,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-02 13:42:38,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2018-12-02 13:42:38,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2018-12-02 13:42:38,236 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-02 13:42:38,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2018-12-02 13:42:38,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-02 13:42:38,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-12-02 13:42:38,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2018-12-02 13:42:38,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 13:42:38,237 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2018-12-02 13:42:38,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2018-12-02 13:42:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-12-02 13:42:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-02 13:42:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2018-12-02 13:42:38,240 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-12-02 13:42:38,240 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-12-02 13:42:38,240 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 13:42:38,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2018-12-02 13:42:38,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-02 13:42:38,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:38,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:38,242 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-12-02 13:42:38,242 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 13:42:38,242 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 283#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 284#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 289#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 318#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-12-02 13:42:38,242 INFO L796 eck$LassoCheckResult]: Loop: 293#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 294#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-12-02 13:42:38,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,242 INFO L82 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2018-12-02 13:42:38,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:38,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,249 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2018-12-02 13:42:38,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,250 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,261 INFO L82 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2018-12-02 13:42:38,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,281 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,281 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,281 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,281 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,281 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:38,281 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,281 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,281 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,281 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-02 13:42:38,281 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,281 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,333 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,333 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,337 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,337 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/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 [2018-12-02 13:42:38,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,355 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,355 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,370 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,384 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,384 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,386 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,400 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,400 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,403 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,419 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:38,419 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,462 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:38,463 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,463 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,463 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,463 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,463 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:38,463 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,463 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,463 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,463 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-02 13:42:38,463 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,463 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,516 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,517 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:38,517 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 [2018-12-02 13:42:38,517 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,517 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,517 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,517 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,518 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,518 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,518 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,518 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 13:42:38,519 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,519 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,519 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,519 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,519 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,519 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,519 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,520 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,520 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 [2018-12-02 13:42:38,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,520 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,520 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,520 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,520 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,521 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,521 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,522 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:38,523 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:38,523 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:38,523 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:38,523 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:38,524 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:38,524 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-02 13:42:38,524 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:38,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,537 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:38,551 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 [2018-12-02 13:42:38,551 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-02 13:42:38,562 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 65 states and 102 transitions. Complement of second has 7 states. [2018-12-02 13:42:38,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 13:42:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-02 13:42:38,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-02 13:42:38,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,563 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 13:42:38,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:38,587 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-02 13:42:38,587 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-02 13:42:38,601 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 60 states and 95 transitions. Complement of second has 7 states. [2018-12-02 13:42:38,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 13:42:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-12-02 13:42:38,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-02 13:42:38,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,602 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 13:42:38,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:38,639 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 3 loop predicates [2018-12-02 13:42:38,639 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-02 13:42:38,650 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 88 states and 137 transitions. Complement of second has 9 states. [2018-12-02 13:42:38,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 13:42:38,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 13:42:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-02 13:42:38,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-02 13:42:38,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-02 13:42:38,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2018-12-02 13:42:38,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2018-12-02 13:42:38,652 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-12-02 13:42:38,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2018-12-02 13:42:38,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-12-02 13:42:38,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-02 13:42:38,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2018-12-02 13:42:38,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 13:42:38,653 INFO L705 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2018-12-02 13:42:38,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2018-12-02 13:42:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2018-12-02 13:42:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 13:42:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2018-12-02 13:42:38,655 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-12-02 13:42:38,655 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-12-02 13:42:38,655 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 13:42:38,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2018-12-02 13:42:38,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-02 13:42:38,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:38,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:38,656 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-12-02 13:42:38,656 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 13:42:38,656 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 676#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 677#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 682#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 683#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 706#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-12-02 13:42:38,656 INFO L796 eck$LassoCheckResult]: Loop: 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 671#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-12-02 13:42:38,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,656 INFO L82 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2018-12-02 13:42:38,656 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:38,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-12-02 13:42:38,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:42:38,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2018-12-02 13:42:38,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,664 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,683 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,683 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,683 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,683 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,683 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:38,683 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,683 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,683 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,683 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-02 13:42:38,683 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,683 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,733 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,733 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,735 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,751 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,751 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,754 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,754 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,768 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,768 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,771 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,786 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,786 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,789 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:38,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,805 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,805 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,821 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:38,821 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:38,837 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:38,838 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,838 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,838 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,838 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,838 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:38,838 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,838 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,838 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,838 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-02 13:42:38,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,838 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,880 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,880 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:38,880 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 [2018-12-02 13:42:38,880 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,880 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,881 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:38,881 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:38,883 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,883 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 [2018-12-02 13:42:38,883 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,883 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,883 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,883 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,884 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,884 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,884 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,885 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 [2018-12-02 13:42:38,885 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,885 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,885 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,885 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,886 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:38,886 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:38,887 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,888 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 [2018-12-02 13:42:38,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,888 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,888 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-02 13:42:38,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,889 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-02 13:42:38,889 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,890 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:38,890 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 [2018-12-02 13:42:38,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:38,890 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:38,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:38,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:38,891 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:38,891 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:38,891 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:38,892 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:38,893 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:38,893 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:38,893 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:38,893 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:38,893 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:38,894 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 13:42:38,894 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:38,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:38,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:38,917 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:38,917 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand 3 states. [2018-12-02 13:42:38,924 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 100 states and 153 transitions. Complement of second has 5 states. [2018-12-02 13:42:38,924 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 [2018-12-02 13:42:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 13:42:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-02 13:42:38,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-02 13:42:38,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-02 13:42:38,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-02 13:42:38,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:38,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2018-12-02 13:42:38,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-02 13:42:38,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2018-12-02 13:42:38,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-02 13:42:38,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-12-02 13:42:38,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2018-12-02 13:42:38,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 13:42:38,927 INFO L705 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2018-12-02 13:42:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2018-12-02 13:42:38,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2018-12-02 13:42:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-02 13:42:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2018-12-02 13:42:38,929 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-12-02 13:42:38,929 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-12-02 13:42:38,929 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-02 13:42:38,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2018-12-02 13:42:38,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-02 13:42:38,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:42:38,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:42:38,930 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-12-02 13:42:38,930 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 13:42:38,930 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 864#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 910#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 860#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 870#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 890#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 886#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-12-02 13:42:38,930 INFO L796 eck$LassoCheckResult]: Loop: 877#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 876#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-12-02 13:42:38,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2018-12-02 13:42:38,930 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,931 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-12-02 13:42:38,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,936 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:38,938 INFO L82 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2018-12-02 13:42:38,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:42:38,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:42:38,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:42:38,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:42:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:42:38,954 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:38,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:38,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:38,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:38,954 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 13:42:38,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:38,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:38,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-02 13:42:38,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:38,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:38,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:38,991 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:38,991 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:38,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:38,993 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:39,007 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:39,007 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,009 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:39,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:39,024 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:39,024 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,026 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:39,026 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:39,040 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:39,041 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:39,044 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:39,046 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 13:42:39,046 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 13:42:39,061 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7da867f-2f36-496b-a7be-3d2e94f3c8ee/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,077 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 13:42:39,077 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 13:42:39,092 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 13:42:39,093 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 13:42:39,094 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 13:42:39,094 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 13:42:39,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 13:42:39,094 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 13:42:39,094 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 13:42:39,094 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 13:42:39,094 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 13:42:39,094 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-02 13:42:39,094 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 13:42:39,094 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 13:42:39,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 13:42:39,126 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 13:42:39,126 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 13:42:39,127 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 [2018-12-02 13:42:39,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:39,127 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:39,127 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:39,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:39,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:39,128 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:39,128 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:39,128 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:39,128 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 [2018-12-02 13:42:39,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:39,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:39,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:39,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:39,130 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 13:42:39,130 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 13:42:39,132 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:39,132 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 [2018-12-02 13:42:39,133 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:39,133 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:39,133 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:39,133 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-02 13:42:39,133 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:39,133 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-02 13:42:39,133 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:39,135 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 13:42:39,135 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 [2018-12-02 13:42:39,135 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 13:42:39,136 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 13:42:39,136 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 13:42:39,136 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 13:42:39,136 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 13:42:39,136 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 13:42:39,136 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 13:42:39,137 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 13:42:39,138 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 13:42:39,139 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 13:42:39,139 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 13:42:39,139 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 13:42:39,139 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 13:42:39,139 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 13:42:39,140 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 13:42:39,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:39,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:39,162 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-02 13:42:39,169 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-12-02 13:42:39,170 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 [2018-12-02 13:42:39,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 13:42:39,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-02 13:42:39,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-02 13:42:39,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:39,170 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 13:42:39,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,185 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:39,191 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:39,191 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-02 13:42:39,197 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-12-02 13:42:39,197 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 [2018-12-02 13:42:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 13:42:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-02 13:42:39,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-02 13:42:39,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:39,198 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 13:42:39,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:42:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:42:39,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:42:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:42:39,224 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 13:42:39,224 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-02 13:42:39,231 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 125 states and 192 transitions. Complement of second has 4 states. [2018-12-02 13:42:39,231 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 [2018-12-02 13:42:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 13:42:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-12-02 13:42:39,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-02 13:42:39,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:39,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-12-02 13:42:39,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:39,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-02 13:42:39,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 13:42:39,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2018-12-02 13:42:39,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 13:42:39,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 13:42:39,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 13:42:39,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 13:42:39,234 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-02 13:42:39,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 13:42:39,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 13:42:39,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 13:42:39,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:42:39 BoogieIcfgContainer [2018-12-02 13:42:39,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 13:42:39,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:42:39,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:42:39,240 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:42:39,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:36" (3/4) ... [2018-12-02 13:42:39,243 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 13:42:39,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:42:39,243 INFO L168 Benchmark]: Toolchain (without parser) took 2535.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 953.3 MB in the beginning and 854.4 MB in the end (delta: 98.9 MB). Peak memory consumption was 199.6 MB. Max. memory is 11.5 GB. [2018-12-02 13:42:39,244 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:42:39,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 114.75 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:42:39,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.37 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:42:39,245 INFO L168 Benchmark]: Boogie Preprocessor took 11.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:42:39,245 INFO L168 Benchmark]: RCFGBuilder took 135.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 13:42:39,246 INFO L168 Benchmark]: BuchiAutomizer took 2250.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 854.4 MB in the end (delta: 235.2 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. [2018-12-02 13:42:39,246 INFO L168 Benchmark]: Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 854.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:42:39,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 114.75 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.37 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2250.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 854.4 MB in the end (delta: 235.2 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 854.4 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 (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 35 SDs, 0 SdLazy, 76 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 21 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...