./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/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 da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 02:41:07,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:41:07,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:41:07,352 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:41:07,352 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:41:07,353 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:41:07,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:41:07,354 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:41:07,356 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:41:07,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:41:07,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:41:07,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:41:07,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:41:07,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:41:07,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:41:07,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:41:07,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:41:07,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:41:07,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:41:07,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:41:07,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:41:07,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:41:07,368 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:41:07,368 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:41:07,368 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:41:07,369 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:41:07,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:41:07,370 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:41:07,370 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:41:07,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:41:07,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:41:07,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:41:07,372 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:41:07,372 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:41:07,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:41:07,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:41:07,373 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 02:41:07,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:41:07,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:41:07,383 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:41:07,383 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:41:07,383 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:41:07,383 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 02:41:07,383 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 02:41:07,383 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 02:41:07,383 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 02:41:07,384 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:41:07,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:41:07,385 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 02:41:07,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:41:07,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:41:07,386 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 02:41:07,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:41:07,386 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 02:41:07,386 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 02:41:07,387 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 02:41:07,387 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_dc93e971-f6f0-4526-9696-0e188ec7cc57/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 -> da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 [2018-12-02 02:41:07,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:41:07,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:41:07,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:41:07,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:41:07,416 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:41:07,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-12-02 02:41:07,454 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/data/f01a4e4ee/964ed10b9cd844aa84b50948ffa69b1a/FLAG991be1464 [2018-12-02 02:41:07,844 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:41:07,845 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-12-02 02:41:07,848 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/data/f01a4e4ee/964ed10b9cd844aa84b50948ffa69b1a/FLAG991be1464 [2018-12-02 02:41:07,855 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/data/f01a4e4ee/964ed10b9cd844aa84b50948ffa69b1a [2018-12-02 02:41:07,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:41:07,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:41:07,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:41:07,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:41:07,860 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:41:07,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:07,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ef9c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07, skipping insertion in model container [2018-12-02 02:41:07,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:07,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:41:07,879 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:41:07,962 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:41:07,964 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:41:07,972 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:41:07,980 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:41:07,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07 WrapperNode [2018-12-02 02:41:07,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:41:07,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:41:07,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:41:07,981 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:41:07,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:07,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:41:08,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:41:08,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:41:08,000 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:41:08,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... [2018-12-02 02:41:08,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:41:08,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:41:08,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:41:08,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:41:08,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:41:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:41:08,143 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:41:08,143 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 02:41:08,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:08 BoogieIcfgContainer [2018-12-02 02:41:08,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:41:08,144 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 02:41:08,144 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 02:41:08,146 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 02:41:08,146 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:41:08,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 02:41:07" (1/3) ... [2018-12-02 02:41:08,147 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@de7180f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:41:08, skipping insertion in model container [2018-12-02 02:41:08,147 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:41:08,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:07" (2/3) ... [2018-12-02 02:41:08,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@de7180f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:41:08, skipping insertion in model container [2018-12-02 02:41:08,148 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:41:08,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:08" (3/3) ... [2018-12-02 02:41:08,149 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01_assume_true-termination_true-no-overflow.c [2018-12-02 02:41:08,182 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:41:08,182 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 02:41:08,182 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 02:41:08,182 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 02:41:08,182 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:41:08,182 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:41:08,183 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 02:41:08,183 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:41:08,183 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 02:41:08,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 02:41:08,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 02:41:08,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:41:08,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:41:08,207 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 02:41:08,207 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 02:41:08,207 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 02:41:08,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 02:41:08,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 02:41:08,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:41:08,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:41:08,208 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 02:41:08,208 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 02:41:08,213 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L9-2true [2018-12-02 02:41:08,213 INFO L796 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 10#L11-2true assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 8#L11-3true main_~x~0 := main_~x~0 - 1; 6#L9-2true [2018-12-02 02:41:08,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,217 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 02:41:08,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,275 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-02 02:41:08,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,285 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-12-02 02:41:08,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,341 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:08,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:08,342 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:08,342 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:08,342 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 02:41:08,342 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,342 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:08,342 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:08,342 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 02:41:08,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:08,343 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:08,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,438 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:08,438 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:08,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:08,461 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 02:41:08,461 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_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:08,464 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:08,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 02:41:08,479 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_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:08,482 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 02:41:08,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:08,516 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 02:41:08,517 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:08,517 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:08,517 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:08,517 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:08,517 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 02:41:08,518 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,518 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:08,518 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:08,518 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 02:41:08,518 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:08,518 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:08,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,569 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:08,572 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 02:41:08,573 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:08,574 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:08,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:08,574 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:08,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:08,576 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:41:08,577 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:41:08,580 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:41:08,580 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:08,581 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:08,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:41:08,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:08,581 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:08,581 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:08,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:41:08,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:41:08,586 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 02:41:08,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 02:41:08,590 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 02:41:08,591 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 02:41:08,591 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 02:41:08,591 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 02:41:08,592 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-12-02 02:41:08,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 02:41:08,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:08,646 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 02:41:08,647 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-02 02:41:08,674 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-12-02 02:41:08,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 02:41:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 02:41:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-12-02 02:41:08,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-12-02 02:41:08,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-02 02:41:08,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-12-02 02:41:08,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-12-02 02:41:08,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 02:41:08,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-12-02 02:41:08,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-02 02:41:08,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-02 02:41:08,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-02 02:41:08,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 02:41:08,686 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 02:41:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-02 02:41:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-12-02 02:41:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-02 02:41:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-12-02 02:41:08,702 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-12-02 02:41:08,702 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-12-02 02:41:08,702 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 02:41:08,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-12-02 02:41:08,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 02:41:08,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:41:08,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:41:08,703 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 02:41:08,703 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 02:41:08,703 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 71#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 73#L11-2 [2018-12-02 02:41:08,703 INFO L796 eck$LassoCheckResult]: Loop: 73#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 73#L11-2 [2018-12-02 02:41:08,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-02 02:41:08,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,708 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-02 02:41:08,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-02 02:41:08,713 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,736 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:08,736 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:08,736 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:08,736 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:08,736 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 02:41:08,736 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,736 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:08,736 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:08,736 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 02:41:08,736 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:08,737 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:08,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,774 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:08,774 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,776 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:08,776 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:08,790 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 02:41:08,790 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_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:08,793 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 02:41:08,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:08,826 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 02:41:08,827 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:08,827 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:08,827 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:08,827 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:08,827 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 02:41:08,827 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:08,827 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:08,827 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:08,827 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 02:41:08,827 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:08,827 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:08,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:08,859 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:08,860 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 02:41:08,860 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:08,860 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:08,860 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:08,861 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:08,861 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:08,862 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:41:08,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:41:08,864 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:41:08,864 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:08,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:08,865 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:41:08,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:08,865 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:08,865 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:08,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:41:08,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:41:08,869 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 02:41:08,872 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 02:41:08,872 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 02:41:08,872 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 02:41:08,872 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 02:41:08,873 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 02:41:08,873 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-12-02 02:41:08,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 02:41:08,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:08,889 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 02:41:08,889 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-12-02 02:41:08,896 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-12-02 02:41:08,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 02:41:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 02:41:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 02:41:08,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-02 02:41:08,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-02 02:41:08,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-02 02:41:08,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:08,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-12-02 02:41:08,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 02:41:08,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-12-02 02:41:08,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-02 02:41:08,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-02 02:41:08,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-12-02 02:41:08,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 02:41:08,899 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-12-02 02:41:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-12-02 02:41:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-12-02 02:41:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-02 02:41:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-12-02 02:41:08,900 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-12-02 02:41:08,900 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-12-02 02:41:08,900 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 02:41:08,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-12-02 02:41:08,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 02:41:08,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:41:08,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:41:08,901 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-12-02 02:41:08,901 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 02:41:08,901 INFO L794 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 119#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 120#L11-2 assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 123#L11-3 main_~x~0 := main_~x~0 - 1; 121#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 122#L11-2 [2018-12-02 02:41:08,901 INFO L796 eck$LassoCheckResult]: Loop: 122#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 122#L11-2 [2018-12-02 02:41:08,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,901 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-12-02 02:41:08,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-12-02 02:41:08,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,910 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 02:41:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:41:08,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:08,913 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-12-02 02:41:08,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:41:08,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:41:08,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,914 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 02:41:08,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:41:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:08,961 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:41:08,961 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/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 [2018-12-02 02:41:08,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:41:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:08,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:09,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 02:41:09,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-12-02 02:41:09,047 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:09,047 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:09,047 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:09,047 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:09,047 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 02:41:09,047 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:09,047 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:09,047 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:09,047 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 02:41:09,048 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:09,048 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:09,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,081 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:09,081 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:09,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:09,082 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:09,097 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 02:41:09,098 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_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:09,100 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 02:41:09,100 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc93e971-f6f0-4526-9696-0e188ec7cc57/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:09,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 02:41:09,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 02:41:09,133 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 02:41:09,134 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:41:09,134 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:41:09,134 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:41:09,134 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:41:09,135 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 02:41:09,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:41:09,135 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:41:09,135 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:41:09,135 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 02:41:09,135 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:41:09,135 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:41:09,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:41:09,165 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:41:09,165 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 02:41:09,165 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:09,166 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:09,166 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:09,166 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:09,166 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:09,167 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:41:09,167 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:41:09,170 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:41:09,171 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:41:09,171 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:41:09,171 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:41:09,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:41:09,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:41:09,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:41:09,172 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:41:09,172 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:41:09,175 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 02:41:09,178 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 02:41:09,178 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 02:41:09,178 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 02:41:09,178 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 02:41:09,179 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 02:41:09,179 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-12-02 02:41:09,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 02:41:09,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:09,197 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 02:41:09,197 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 02:41:09,203 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-12-02 02:41:09,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 02:41:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 02:41:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 02:41:09,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-02 02:41:09,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:09,204 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 02:41:09,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:09,225 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 02:41:09,225 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 02:41:09,230 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-12-02 02:41:09,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 02:41:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 02:41:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 02:41:09,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-02 02:41:09,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:09,231 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 02:41:09,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:41:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:41:09,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:41:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:41:09,253 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 02:41:09,253 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 02:41:09,259 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-12-02 02:41:09,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 02:41:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 02:41:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-02 02:41:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-02 02:41:09,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-02 02:41:09,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 02:41:09,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:41:09,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-12-02 02:41:09,261 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 02:41:09,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-12-02 02:41:09,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 02:41:09,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 02:41:09,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 02:41:09,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 02:41:09,261 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:41:09,262 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:41:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 02:41:09,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:41:09,264 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 10 states. [2018-12-02 02:41:09,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:41:09,266 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-02 02:41:09,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 02:41:09,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-02 02:41:09,266 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 02:41:09,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:41:09,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 02:41:09,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 02:41:09,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 02:41:09,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 02:41:09,267 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:41:09,267 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:41:09,267 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:41:09,267 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 02:41:09,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:41:09,267 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 02:41:09,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 02:41:09,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 02:41:09 BoogieIcfgContainer [2018-12-02 02:41:09,271 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 02:41:09,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:41:09,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:41:09,271 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:41:09,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:08" (3/4) ... [2018-12-02 02:41:09,274 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 02:41:09,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:41:09,274 INFO L168 Benchmark]: Toolchain (without parser) took 1416.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 962.4 MB in the beginning and 889.4 MB in the end (delta: 73.1 MB). Peak memory consumption was 208.4 MB. Max. memory is 11.5 GB. [2018-12-02 02:41:09,275 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:41:09,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.14 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:41:09,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.28 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:41:09,276 INFO L168 Benchmark]: Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:41:09,276 INFO L168 Benchmark]: RCFGBuilder took 132.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-02 02:41:09,276 INFO L168 Benchmark]: BuchiAutomizer took 1127.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.4 MB in the end (delta: 226.5 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:41:09,277 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.2 GB. Free memory is still 889.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:41:09,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.14 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.28 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1127.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.4 MB in the end (delta: 226.5 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 ms. Allocated memory is still 1.2 GB. Free memory is still 889.4 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 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 25 SDslu, 9 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax169 hnf98 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...