./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:09:37,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:09:37,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:09:37,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:09:37,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:09:37,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:09:37,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:09:37,201 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:09:37,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:09:37,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:09:37,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:09:37,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:09:37,204 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:09:37,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:09:37,206 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:09:37,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:09:37,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:09:37,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:09:37,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:09:37,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:09:37,212 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:09:37,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:09:37,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:09:37,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:09:37,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:09:37,216 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:09:37,217 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:09:37,218 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:09:37,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:09:37,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:09:37,219 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:09:37,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:09:37,220 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:09:37,220 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:09:37,221 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:09:37,222 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:09:37,222 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 23:09:37,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:09:37,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:09:37,236 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:09:37,236 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:09:37,236 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:09:37,236 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 23:09:37,237 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 23:09:37,237 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 23:09:37,237 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 23:09:37,237 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 23:09:37,237 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 23:09:37,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 23:09:37,238 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 23:09:37,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:09:37,239 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 23:09:37,239 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:09:37,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 23:09:37,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:09:37,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:09:37,240 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 23:09:37,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:09:37,240 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:09:37,240 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 23:09:37,241 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 23:09:37,241 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_8370f99e-cd43-464b-a86e-4f7935ff642f/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-11-22 23:09:37,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:09:37,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:09:37,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:09:37,283 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:09:37,283 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:09:37,284 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-22 23:09:37,336 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/data/fe963c911/c5fa2892f09a48e9bc04f6fdd0cc07c1/FLAG1ac0c1b1b [2018-11-22 23:09:37,698 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:09:37,698 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-22 23:09:37,703 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/data/fe963c911/c5fa2892f09a48e9bc04f6fdd0cc07c1/FLAG1ac0c1b1b [2018-11-22 23:09:37,713 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/data/fe963c911/c5fa2892f09a48e9bc04f6fdd0cc07c1 [2018-11-22 23:09:37,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:09:37,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:09:37,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:09:37,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:09:37,721 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:09:37,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108971e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37, skipping insertion in model container [2018-11-22 23:09:37,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:09:37,749 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:09:37,868 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:09:37,871 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:09:37,881 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:09:37,891 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:09:37,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37 WrapperNode [2018-11-22 23:09:37,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:09:37,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:09:37,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:09:37,892 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:09:37,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:09:37,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:09:37,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:09:37,917 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:09:37,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... [2018-11-22 23:09:37,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:09:37,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:09:37,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:09:37,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:09:37,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:09:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:09:38,104 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:09:38,104 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 23:09:38,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:38 BoogieIcfgContainer [2018-11-22 23:09:38,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:09:38,105 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 23:09:38,105 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 23:09:38,108 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 23:09:38,109 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:09:38,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 11:09:37" (1/3) ... [2018-11-22 23:09:38,109 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15358cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:09:38, skipping insertion in model container [2018-11-22 23:09:38,110 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:09:38,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:37" (2/3) ... [2018-11-22 23:09:38,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15358cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:09:38, skipping insertion in model container [2018-11-22 23:09:38,110 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:09:38,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:38" (3/3) ... [2018-11-22 23:09:38,112 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-22 23:09:38,153 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:09:38,154 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 23:09:38,154 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 23:09:38,154 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 23:09:38,155 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:09:38,155 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:09:38,155 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 23:09:38,155 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:09:38,155 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 23:09:38,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:09:38,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:38,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:09:38,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:09:38,189 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 23:09:38,190 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:09:38,190 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 23:09:38,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:09:38,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:38,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:09:38,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:09:38,191 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 23:09:38,191 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:09:38,199 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~M~0 > 0; 7#L19-2true [2018-11-22 23:09:38,200 INFO L796 eck$LassoCheckResult]: Loop: 7#L19-2true assume !!(main_~x~0 != main_~M~0); 9#L19true assume main_~x~0 > main_~M~0;main_~x~0 := 0; 7#L19-2true [2018-11-22 23:09:38,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:38,206 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-22 23:09:38,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:38,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:38,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:38,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:38,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-22 23:09:38,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:38,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:38,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:38,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:38,292 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-22 23:09:38,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:38,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:38,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:38,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:38,355 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:38,356 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:38,357 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:38,357 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:38,357 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:09:38,357 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,358 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:38,358 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:38,358 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-22 23:09:38,358 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:38,358 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:38,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,492 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:38,493 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,496 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,503 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:38,503 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,520 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,521 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,538 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:38,539 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_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,543 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,546 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:38,546 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,563 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,563 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,566 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:38,566 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,583 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,600 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:38,601 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_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,603 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:38,603 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:09:38,622 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:38,701 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:09:38,702 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:38,702 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:38,702 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:38,702 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:38,702 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:09:38,702 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:38,702 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:38,703 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:38,703 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-22 23:09:38,703 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:38,703 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:38,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:38,794 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:38,798 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:09:38,799 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,800 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,800 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:09:38,800 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,801 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,801 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,802 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:09:38,802 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:09:38,805 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:38,806 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,807 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,807 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:09:38,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,808 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:09:38,808 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:09:38,809 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:38,809 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,810 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,810 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,810 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,810 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,812 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:38,812 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:38,816 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:38,817 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,817 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,817 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:09:38,818 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,818 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,818 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,818 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:09:38,819 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:09:38,820 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:38,820 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,820 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,821 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,821 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,821 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,823 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:38,823 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:38,830 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:38,831 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:38,831 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:38,832 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:38,832 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:38,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:38,834 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:38,835 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:38,861 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:09:38,875 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-22 23:09:38,875 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:09:38,877 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:09:38,879 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-22 23:09:38,880 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:09:38,880 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~M~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~M~0 >= 0] [2018-11-22 23:09:38,887 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-22 23:09:38,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:38,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:38,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:38,961 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 23:09:38,962 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-22 23:09:39,014 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2018-11-22 23:09:39,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:09:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:09:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-22 23:09:39,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-22 23:09:39,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:39,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 23:09:39,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:39,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-22 23:09:39,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:39,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-22 23:09:39,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:39,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-22 23:09:39,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-22 23:09:39,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-22 23:09:39,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-22 23:09:39,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:09:39,028 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-22 23:09:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-22 23:09:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-22 23:09:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-22 23:09:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-22 23:09:39,047 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-22 23:09:39,048 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-22 23:09:39,048 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 23:09:39,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-11-22 23:09:39,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:39,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:09:39,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:09:39,049 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-22 23:09:39,049 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:09:39,049 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 82#L17 assume main_~M~0 > 0; 88#L19-2 assume !!(main_~x~0 != main_~M~0); 87#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := 1 + main_~x~0; 83#L19-2 [2018-11-22 23:09:39,049 INFO L796 eck$LassoCheckResult]: Loop: 83#L19-2 assume !!(main_~x~0 != main_~M~0); 84#L19 assume main_~x~0 > main_~M~0;main_~x~0 := 0; 83#L19-2 [2018-11-22 23:09:39,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,050 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-22 23:09:39,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-22 23:09:39,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,061 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2018-11-22 23:09:39,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,062 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:09:39,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:39,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:09:39,105 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:09:39,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:39,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:39,145 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:09:39,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-22 23:09:39,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 23:09:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 23:09:39,159 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-22 23:09:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:09:39,178 INFO L93 Difference]: Finished difference Result 8 states and 10 transitions. [2018-11-22 23:09:39,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 23:09:39,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2018-11-22 23:09:39,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:39,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 10 transitions. [2018-11-22 23:09:39,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-22 23:09:39,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-22 23:09:39,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-22 23:09:39,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:09:39,180 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-22 23:09:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-22 23:09:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 23:09:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 23:09:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-22 23:09:39,182 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 23:09:39,182 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 23:09:39,182 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 23:09:39,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-22 23:09:39,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:39,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:09:39,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:09:39,183 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-22 23:09:39,183 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:09:39,184 INFO L794 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 124#L17 assume main_~M~0 > 0; 125#L19-2 assume !!(main_~x~0 != main_~M~0); 127#L19 [2018-11-22 23:09:39,184 INFO L796 eck$LassoCheckResult]: Loop: 127#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := 1 + main_~x~0; 126#L19-2 assume !!(main_~x~0 != main_~M~0); 127#L19 [2018-11-22 23:09:39,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,184 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-11-22 23:09:39,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-11-22 23:09:39,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:39,194 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 2 times [2018-11-22 23:09:39,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:39,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:39,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:39,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:39,209 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:39,209 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:39,209 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:39,209 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:39,209 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:09:39,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:39,210 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:39,210 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:39,210 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 23:09:39,210 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:39,210 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:39,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:39,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:39,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:39,322 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:39,322 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:39,325 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:39,325 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:39,344 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:39,344 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_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:39,347 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:39,347 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:39,367 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:39,367 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_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:39,370 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:39,370 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:39,392 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:09:39,392 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:41,456 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:09:41,457 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:41,458 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:41,458 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:41,458 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:41,458 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:09:41,458 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:41,458 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:41,458 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:41,459 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 23:09:41,459 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:41,459 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:41,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,513 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:41,513 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:09:41,513 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:41,514 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:41,514 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:41,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:41,517 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:41,519 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:41,519 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:41,521 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:41,522 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:41,522 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:41,522 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:41,523 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:41,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:41,524 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:41,524 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:41,528 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:41,528 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:41,529 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:41,529 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:09:41,529 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:41,530 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-22 23:09:41,530 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:41,531 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-22 23:09:41,531 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:09:41,536 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:09:41,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:09:41,539 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:09:41,539 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:09:41,539 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:09:41,540 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:09:41,540 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~M~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 23:09:41,540 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:09:41,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:41,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:41,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:41,587 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:09:41,587 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-22 23:09:41,595 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 14 transitions. Complement of second has 5 states. [2018-11-22 23:09:41,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:09:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:09:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-22 23:09:41,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 23:09:41,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:41,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:09:41,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:41,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-22 23:09:41,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:41,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-22 23:09:41,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:41,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2018-11-22 23:09:41,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-22 23:09:41,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-22 23:09:41,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-22 23:09:41,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:09:41,600 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-22 23:09:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-22 23:09:41,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 23:09:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 23:09:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-22 23:09:41,602 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-22 23:09:41,602 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-22 23:09:41,602 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 23:09:41,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-22 23:09:41,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:09:41,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:09:41,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:09:41,603 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-22 23:09:41,603 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:09:41,603 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 179#L17 assume main_~M~0 > 0; 180#L19-2 assume !!(main_~x~0 != main_~M~0); 181#L19 assume main_~x~0 > main_~M~0;main_~x~0 := 0; 182#L19-2 assume !!(main_~x~0 != main_~M~0); 183#L19 [2018-11-22 23:09:41,603 INFO L796 eck$LassoCheckResult]: Loop: 183#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := 1 + main_~x~0; 184#L19-2 assume !!(main_~x~0 != main_~M~0); 183#L19 [2018-11-22 23:09:41,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash 29684838, now seen corresponding path program 2 times [2018-11-22 23:09:41,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:41,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:41,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,605 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:09:41,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:41,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 2 times [2018-11-22 23:09:41,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:41,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:41,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,609 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:09:41,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 2 times [2018-11-22 23:09:41,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:09:41,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:09:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:09:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:09:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:09:41,631 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:41,631 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:41,631 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:41,631 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:41,632 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:09:41,632 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:41,632 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:41,632 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:41,632 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 23:09:41,632 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:41,632 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:41,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:41,694 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:41,694 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:41,696 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:41,696 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:41,712 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:09:41,712 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_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:41,715 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:09:41,715 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8370f99e-cd43-464b-a86e-4f7935ff642f/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:41,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:09:41,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:09:43,713 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:09:43,715 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:09:43,715 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:09:43,715 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:09:43,716 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:09:43,716 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:09:43,716 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:09:43,716 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:09:43,716 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:09:43,716 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 23:09:43,716 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:09:43,716 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:09:43,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:43,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:43,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:09:43,785 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:09:43,785 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:09:43,786 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:43,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:43,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:43,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:09:43,787 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:43,787 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:09:43,788 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:09:43,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:09:43,791 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:09:43,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:09:43,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:09:43,791 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:09:43,791 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-22 23:09:43,791 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:09:43,792 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-22 23:09:43,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:09:43,796 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:09:43,798 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:09:43,798 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:09:43,799 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:09:43,799 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:09:43,799 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:09:43,799 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~M~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 23:09:43,799 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:09:43,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:43,832 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:09:43,832 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 23:09:43,836 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-22 23:09:43,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-22 23:09:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:09:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-22 23:09:43,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:09:43,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:43,837 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:09:43,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:43,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:09:43,865 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 23:09:43,873 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-22 23:09:43,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-22 23:09:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:09:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-22 23:09:43,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:09:43,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:43,875 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:09:43,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:43,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:09:43,897 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:09:43,898 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 23:09:43,905 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 9 states and 10 transitions. Complement of second has 4 states. [2018-11-22 23:09:43,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:09:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:09:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-22 23:09:43,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:09:43,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:43,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 23:09:43,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:43,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 23:09:43,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:09:43,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-22 23:09:43,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:09:43,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-22 23:09:43,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 23:09:43,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 23:09:43,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 23:09:43,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 23:09:43,907 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:09:43,907 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:09:43,908 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:09:43,908 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 23:09:43,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:09:43,908 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:09:43,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 23:09:43,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 11:09:43 BoogieIcfgContainer [2018-11-22 23:09:43,913 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 23:09:43,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:09:43,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:09:43,913 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:09:43,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:38" (3/4) ... [2018-11-22 23:09:43,916 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 23:09:43,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:09:43,917 INFO L168 Benchmark]: Toolchain (without parser) took 6200.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 959.1 MB in the beginning and 864.4 MB in the end (delta: 94.7 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:43,918 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:09:43,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.22 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:43,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:43,919 INFO L168 Benchmark]: Boogie Preprocessor took 14.61 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:09:43,919 INFO L168 Benchmark]: RCFGBuilder took 173.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:43,920 INFO L168 Benchmark]: BuchiAutomizer took 5807.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.4 MB in the end (delta: 271.7 MB). Peak memory consumption was 271.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:43,920 INFO L168 Benchmark]: Witness Printer took 3.12 ms. Allocated memory is still 1.2 GB. Free memory is still 864.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:09:43,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.22 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.61 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 173.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5807.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 864.4 MB in the end (delta: 271.7 MB). Peak memory consumption was 271.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.12 ms. Allocated memory is still 1.2 GB. Free memory is still 864.4 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 (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * M + x and consists of 4 locations. One deterministic module has affine ranking function 2 * M + -2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * M + -2 * x + 1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 26 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 38 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax196 hnf97 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf94 smp100 dnf143 smp85 tf104 neg95 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...