./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_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_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 7c08193784b646afd298f73ae6296b7af2e0cac1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:11:36,087 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:11:36,088 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:11:36,094 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:11:36,094 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:11:36,095 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:11:36,095 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:11:36,096 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:11:36,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:11:36,098 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:11:36,098 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:11:36,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:11:36,099 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:11:36,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:11:36,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:11:36,100 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:11:36,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:11:36,101 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:11:36,102 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:11:36,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:11:36,103 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:11:36,104 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:11:36,105 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:11:36,105 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:11:36,105 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:11:36,106 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:11:36,106 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:11:36,107 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:11:36,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:11:36,108 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:11:36,108 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:11:36,108 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:11:36,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:11:36,109 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:11:36,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:11:36,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:11:36,110 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 11:11:36,118 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:11:36,118 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:11:36,119 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:11:36,119 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:11:36,119 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:11:36,119 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 11:11:36,119 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 11:11:36,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:11:36,120 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 11:11:36,121 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:11:36,121 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 11:11:36,121 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:11:36,122 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 11:11:36,122 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 11:11:36,122 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 11:11:36,122 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 -> 7c08193784b646afd298f73ae6296b7af2e0cac1 [2018-12-08 11:11:36,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:11:36,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:11:36,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:11:36,149 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:11:36,149 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:11:36,149 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-08 11:11:36,184 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/data/df6484a31/ccb3ea0d8ff1462e90455689bdb4dfb9/FLAG3c36dbc5f [2018-12-08 11:11:36,614 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:11:36,615 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-08 11:11:36,620 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/data/df6484a31/ccb3ea0d8ff1462e90455689bdb4dfb9/FLAG3c36dbc5f [2018-12-08 11:11:36,633 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/bin-2019/uautomizer/data/df6484a31/ccb3ea0d8ff1462e90455689bdb4dfb9 [2018-12-08 11:11:36,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:11:36,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:11:36,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:11:36,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:11:36,640 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:11:36,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36, skipping insertion in model container [2018-12-08 11:11:36,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:11:36,661 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:11:36,751 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:11:36,753 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:11:36,762 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:11:36,769 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:11:36,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36 WrapperNode [2018-12-08 11:11:36,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:11:36,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:11:36,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:11:36,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:11:36,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:11:36,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:11:36,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:11:36,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:11:36,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... [2018-12-08 11:11:36,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:11:36,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:11:36,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:11:36,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:11:36,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:11:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:11:36,931 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:11:36,931 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 11:11:36,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:11:36 BoogieIcfgContainer [2018-12-08 11:11:36,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:11:36,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 11:11:36,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 11:11:36,934 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 11:11:36,934 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 11:11:36,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 11:11:36" (1/3) ... [2018-12-08 11:11:36,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7af062b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:11:36, skipping insertion in model container [2018-12-08 11:11:36,935 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 11:11:36,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:11:36" (2/3) ... [2018-12-08 11:11:36,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7af062b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:11:36, skipping insertion in model container [2018-12-08 11:11:36,935 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 11:11:36,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:11:36" (3/3) ... [2018-12-08 11:11:36,936 INFO L375 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-08 11:11:36,966 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:11:36,967 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 11:11:36,967 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 11:11:36,967 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 11:11:36,967 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:11:36,967 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:11:36,967 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 11:11:36,967 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:11:36,967 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 11:11:36,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 11:11:36,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 11:11:36,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 11:11:36,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 11:11:36,989 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 11:11:36,990 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 11:11:36,990 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 11:11:36,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 11:11:36,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 11:11:36,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 11:11:36,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 11:11:36,990 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 11:11:36,991 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 11:11:36,995 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~i~0, main_~j~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L19-2true [2018-12-08 11:11:36,995 INFO L796 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 9#L21-2true assume !(main_~j~0 <= main_~i~0); 8#L21-3true main_~i~0 := 1 + main_~i~0; 6#L19-2true [2018-12-08 11:11:36,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:36,998 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-08 11:11:37,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,054 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-08 11:11:37,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,062 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-12-08 11:11:37,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,104 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:37,105 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:37,105 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:37,105 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:37,105 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 11:11:37,106 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:37,106 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:37,106 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:37,106 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 11:11:37,106 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:37,106 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:37,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,186 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:37,187 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,190 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,190 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,216 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 11:11:37,216 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,219 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,219 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,234 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 11:11:37,234 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,237 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,254 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 11:11:37,255 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,352 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 11:11:37,354 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:37,354 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:37,354 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:37,354 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:37,354 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 11:11:37,354 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:37,354 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:37,354 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:37,354 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 11:11:37,354 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:37,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:37,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,393 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:37,396 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 11:11:37,397 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 [2018-12-08 11:11:37,398 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,398 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,398 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,398 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,401 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 11:11:37,401 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 11:11:37,405 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 11:11:37,405 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 [2018-12-08 11:11:37,406 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,406 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,406 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,406 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,407 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 11:11:37,407 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 11:11:37,412 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 11:11:37,412 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 [2018-12-08 11:11:37,412 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,412 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 11:11:37,413 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,413 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,413 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,413 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 11:11:37,413 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 11:11:37,418 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 11:11:37,423 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-08 11:11:37,423 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-08 11:11:37,424 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 11:11:37,424 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 11:11:37,425 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 11:11:37,425 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-08 11:11:37,426 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 11:11:37,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:37,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:37,454 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:11:37,489 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 [2018-12-08 11:11:37,490 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2018-12-08 11:11:37,539 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 4 states. Result 30 states and 48 transitions. Complement of second has 9 states. [2018-12-08 11:11:37,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-08 11:11:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 11:11:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2018-12-08 11:11:37,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2018-12-08 11:11:37,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-08 11:11:37,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2018-12-08 11:11:37,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2018-12-08 11:11:37,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 11:11:37,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 18 transitions. [2018-12-08 11:11:37,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-08 11:11:37,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 11:11:37,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2018-12-08 11:11:37,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 11:11:37,548 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-08 11:11:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2018-12-08 11:11:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-08 11:11:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 11:11:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-12-08 11:11:37,564 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-12-08 11:11:37,564 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-12-08 11:11:37,564 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 11:11:37,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2018-12-08 11:11:37,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 11:11:37,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 11:11:37,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 11:11:37,565 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 11:11:37,565 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-08 11:11:37,565 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~i~0, main_~j~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 83#L19-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 85#L21-2 [2018-12-08 11:11:37,565 INFO L796 eck$LassoCheckResult]: Loop: 85#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 91#L21-2 assume !(main_~j~0 <= main_~i~0); 88#L21-3 main_~i~0 := 1 + main_~i~0; 84#L19-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 85#L21-2 [2018-12-08 11:11:37,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-08 11:11:37,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1506610, now seen corresponding path program 1 times [2018-12-08 11:11:37,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,576 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2018-12-08 11:11:37,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,597 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:37,597 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:37,597 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:37,597 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:37,597 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 11:11:37,597 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:37,597 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:37,597 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:37,597 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 11:11:37,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:37,597 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:37,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,643 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:37,643 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,645 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,645 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,668 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 11:11:37,668 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,671 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,671 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,687 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 11:11:37,687 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,690 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 11:11:37,706 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,799 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 11:11:37,800 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:37,801 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:37,801 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:37,801 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:37,801 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 11:11:37,801 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:37,801 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:37,801 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:37,801 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 11:11:37,801 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:37,801 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:37,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,844 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:37,845 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 11:11:37,845 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 [2018-12-08 11:11:37,846 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,846 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,846 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,846 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,847 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 11:11:37,847 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 11:11:37,850 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 11:11:37,851 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 [2018-12-08 11:11:37,851 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,852 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,852 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,853 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 11:11:37,853 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 11:11:37,857 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 11:11:37,857 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 [2018-12-08 11:11:37,858 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:37,858 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 11:11:37,858 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:37,858 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:37,858 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:37,859 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 11:11:37,859 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 11:11:37,864 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 11:11:37,867 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 11:11:37,868 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 11:11:37,868 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 11:11:37,868 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 11:11:37,868 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 11:11:37,868 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-08 11:11:37,869 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 11:11:37,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:37,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:37,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:11:37,896 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 [2018-12-08 11:11:37,896 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-12-08 11:11:37,913 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 22 states and 31 transitions. Complement of second has 6 states. [2018-12-08 11:11:37,913 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 [2018-12-08 11:11:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 11:11:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-08 11:11:37,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-08 11:11:37,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-08 11:11:37,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2018-12-08 11:11:37,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:37,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2018-12-08 11:11:37,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 11:11:37,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 22 transitions. [2018-12-08 11:11:37,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 11:11:37,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 11:11:37,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2018-12-08 11:11:37,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 11:11:37,916 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2018-12-08 11:11:37,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2018-12-08 11:11:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-08 11:11:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-08 11:11:37,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2018-12-08 11:11:37,917 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-12-08 11:11:37,917 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-12-08 11:11:37,917 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 11:11:37,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2018-12-08 11:11:37,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 11:11:37,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 11:11:37,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 11:11:37,918 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 11:11:37,918 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 11:11:37,918 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~i~0, main_~j~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L19-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 159#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 163#L21-2 [2018-12-08 11:11:37,918 INFO L796 eck$LassoCheckResult]: Loop: 163#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 163#L21-2 [2018-12-08 11:11:37,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,919 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-08 11:11:37,919 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,923 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-08 11:11:37,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:37,926 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2018-12-08 11:11:37,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:37,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:37,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:11:37,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:37,939 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:37,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:37,939 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:37,939 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:37,939 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 11:11:37,939 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:37,939 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:37,939 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:37,939 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 11:11:37,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:37,940 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:37,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:37,973 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:37,974 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,975 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:37,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 11:11:37,990 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_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:37,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:37,993 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:38,008 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 11:11:38,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:38,117 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 11:11:38,118 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:38,118 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:38,119 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:38,119 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:38,119 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 11:11:38,119 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:38,119 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:38,119 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:38,119 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 11:11:38,119 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:38,119 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:38,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,143 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:38,143 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 11:11:38,143 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 [2018-12-08 11:11:38,144 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:38,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:38,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:38,144 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:38,145 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 11:11:38,145 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 11:11:38,147 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 11:11:38,148 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 [2018-12-08 11:11:38,148 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:38,148 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 11:11:38,148 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:38,148 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:38,148 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:38,149 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 11:11:38,149 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 11:11:38,150 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 11:11:38,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 11:11:38,152 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 11:11:38,152 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 11:11:38,152 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 11:11:38,152 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 11:11:38,152 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2018-12-08 11:11:38,152 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 11:11:38,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:11:38,179 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 11:11:38,179 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10 Second operand 2 states. [2018-12-08 11:11:38,185 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 26 states and 38 transitions. Complement of second has 5 states. [2018-12-08 11:11:38,186 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 [2018-12-08 11:11:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 11:11:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 11:11:38,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 11:11:38,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-08 11:11:38,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 11:11:38,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 38 transitions. [2018-12-08 11:11:38,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 11:11:38,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 22 states and 33 transitions. [2018-12-08 11:11:38,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-08 11:11:38,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 11:11:38,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2018-12-08 11:11:38,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 11:11:38,188 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-12-08 11:11:38,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2018-12-08 11:11:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-12-08 11:11:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-08 11:11:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2018-12-08 11:11:38,190 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-12-08 11:11:38,190 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-12-08 11:11:38,190 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 11:11:38,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2018-12-08 11:11:38,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 11:11:38,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 11:11:38,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 11:11:38,191 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2018-12-08 11:11:38,191 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 11:11:38,191 INFO L794 eck$LassoCheckResult]: Stem: 229#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~i~0, main_~j~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n~0 := main_#t~nondet2;havoc main_#t~nondet2; 230#L19-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 232#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 236#L21-2 assume !(main_~j~0 <= main_~i~0); 245#L21-3 main_~i~0 := 1 + main_~i~0; 243#L19-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 239#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 238#L21-2 [2018-12-08 11:11:38,191 INFO L796 eck$LassoCheckResult]: Loop: 238#L21-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := 1 + main_~j~0; 238#L21-2 [2018-12-08 11:11:38,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 2 times [2018-12-08 11:11:38,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:38,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:38,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,193 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 11:11:38,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,198 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-12-08 11:11:38,198 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:38,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:38,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,199 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 11:11:38,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,201 INFO L82 PathProgramCache]: Analyzing trace with hash 780807227, now seen corresponding path program 3 times [2018-12-08 11:11:38,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:11:38,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:11:38,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,201 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 11:11:38,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:11:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:11:38,212 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:38,212 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:38,212 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:38,212 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:38,212 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 11:11:38,212 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:38,213 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:38,213 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:38,213 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 11:11:38,213 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:38,213 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:38,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,243 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:38,243 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:38,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 11:11:38,245 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd7b30e4-7f34-446b-86dc-94648638dec0/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 [2018-12-08 11:11:38,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 11:11:38,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 11:11:38,370 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 11:11:38,371 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 11:11:38,371 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 11:11:38,371 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 11:11:38,371 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 11:11:38,371 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 11:11:38,371 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 11:11:38,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 11:11:38,371 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 11:11:38,371 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 11:11:38,371 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 11:11:38,371 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 11:11:38,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 11:11:38,399 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 11:11:38,400 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 11:11:38,400 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 [2018-12-08 11:11:38,400 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 11:11:38,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 11:11:38,401 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 11:11:38,401 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 11:11:38,401 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 11:11:38,401 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 11:11:38,401 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 11:11:38,403 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 11:11:38,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 11:11:38,405 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 11:11:38,405 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 11:11:38,405 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 11:11:38,405 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 11:11:38,405 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2018-12-08 11:11:38,406 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 11:11:38,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:11:38,423 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 11:11:38,423 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-08 11:11:38,429 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 24 states and 35 transitions. Complement of second has 5 states. [2018-12-08 11:11:38,429 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 [2018-12-08 11:11:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 11:11:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 11:11:38,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 11:11:38,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,430 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 11:11:38,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:11:38,445 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 11:11:38,445 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-08 11:11:38,449 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 24 states and 35 transitions. Complement of second has 5 states. [2018-12-08 11:11:38,450 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 [2018-12-08 11:11:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 11:11:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 11:11:38,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 11:11:38,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,450 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 11:11:38,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:11:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:11:38,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:11:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:11:38,475 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 11:11:38,475 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-08 11:11:38,480 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 21 states and 30 transitions. Complement of second has 4 states. [2018-12-08 11:11:38,481 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 [2018-12-08 11:11:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 11:11:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-12-08 11:11:38,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 11:11:38,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-08 11:11:38,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 11:11:38,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 11:11:38,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2018-12-08 11:11:38,482 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 11:11:38,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 11:11:38,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 11:11:38,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 11:11:38,483 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 11:11:38,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 11:11:38,483 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 11:11:38,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 11:11:38,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 11:11:38 BoogieIcfgContainer [2018-12-08 11:11:38,487 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 11:11:38,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:11:38,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:11:38,487 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:11:38,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:11:36" (3/4) ... [2018-12-08 11:11:38,490 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 11:11:38,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:11:38,490 INFO L168 Benchmark]: Toolchain (without parser) took 1854.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 957.1 MB in the beginning and 853.4 MB in the end (delta: 103.7 MB). Peak memory consumption was 241.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:11:38,491 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:11:38,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.89 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:11:38,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.19 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:11:38,492 INFO L168 Benchmark]: Boogie Preprocessor took 10.48 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:11:38,492 INFO L168 Benchmark]: RCFGBuilder took 132.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:11:38,493 INFO L168 Benchmark]: BuchiAutomizer took 1555.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 263.9 MB). Peak memory consumption was 263.9 MB. Max. memory is 11.5 GB. [2018-12-08 11:11:38,493 INFO L168 Benchmark]: Witness Printer took 2.63 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:11:38,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.89 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 18.19 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.48 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1555.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.4 MB in the end (delta: 263.9 MB). Peak memory consumption was 263.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 ms. Allocated memory is still 1.2 GB. Free memory is still 853.4 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i and consists of 6 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function 2 * i + -2 * j + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * i + -2 * j + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 26 SDtfs, 32 SDslu, 9 SDs, 0 SdLazy, 50 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax191 hnf99 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf110 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...