./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.10_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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 65c77d618a9e810a6bfd209782657510debb85fd ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:59:36,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:59:36,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:59:36,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:59:36,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:59:36,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:59:36,783 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:59:36,784 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:59:36,785 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:59:36,786 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:59:36,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:59:36,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:59:36,788 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:59:36,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:59:36,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:59:36,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:59:36,790 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:59:36,790 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:59:36,792 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:59:36,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:59:36,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:59:36,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:59:36,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:59:36,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:59:36,795 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:59:36,796 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:59:36,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:59:36,797 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:59:36,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:59:36,798 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:59:36,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:59:36,799 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:59:36,799 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:59:36,799 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:59:36,800 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:59:36,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:59:36,801 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 14:59:36,811 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:59:36,811 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:59:36,812 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:59:36,812 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:59:36,813 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:59:36,813 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:59:36,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:59:36,814 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:59:36,815 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:59:36,815 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:59:36,815 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:59:36,815 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:59:36,815 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:59:36,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:59:36,817 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:59:36,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:59:36,817 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:59:36,818 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:59:36,818 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:59:36,818 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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 -> 65c77d618a9e810a6bfd209782657510debb85fd [2018-11-23 14:59:36,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:59:36,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:59:36,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:59:36,855 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:59:36,855 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:59:36,856 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c [2018-11-23 14:59:36,896 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/data/789338585/d314b29c8c9742e08f69db40a2ef308f/FLAG2526dea06 [2018-11-23 14:59:37,204 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:59:37,204 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/sv-benchmarks/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c [2018-11-23 14:59:37,208 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/data/789338585/d314b29c8c9742e08f69db40a2ef308f/FLAG2526dea06 [2018-11-23 14:59:37,219 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/data/789338585/d314b29c8c9742e08f69db40a2ef308f [2018-11-23 14:59:37,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:59:37,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:59:37,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:59:37,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:59:37,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:59:37,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37, skipping insertion in model container [2018-11-23 14:59:37,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:59:37,248 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:59:37,356 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:59:37,358 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:59:37,368 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:59:37,377 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:59:37,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37 WrapperNode [2018-11-23 14:59:37,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:59:37,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:59:37,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:59:37,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:59:37,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:59:37,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:59:37,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:59:37,399 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:59:37,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... [2018-11-23 14:59:37,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:59:37,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:59:37,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:59:37,410 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:59:37,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:59:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:59:37,571 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:59:37,571 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 14:59:37,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:37 BoogieIcfgContainer [2018-11-23 14:59:37,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:59:37,572 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:59:37,572 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:59:37,574 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:59:37,575 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:59:37,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:59:37" (1/3) ... [2018-11-23 14:59:37,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@512cc529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:59:37, skipping insertion in model container [2018-11-23 14:59:37,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:59:37,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:37" (2/3) ... [2018-11-23 14:59:37,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@512cc529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:59:37, skipping insertion in model container [2018-11-23 14:59:37,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:59:37,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:37" (3/3) ... [2018-11-23 14:59:37,578 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.10_true-termination_true-no-overflow.c [2018-11-23 14:59:37,618 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:59:37,619 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:59:37,619 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:59:37,619 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:59:37,619 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:59:37,619 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:59:37,619 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:59:37,620 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:59:37,620 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:59:37,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 14:59:37,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:37,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:59:37,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:59:37,648 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 14:59:37,648 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:59:37,648 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:59:37,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 14:59:37,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:37,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:59:37,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:59:37,649 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 14:59:37,649 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:59:37,654 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L15-2true [2018-11-23 14:59:37,654 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 6#L12true assume main_~x~0 > 0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2018-11-23 14:59:37,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 14:59:37,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:37,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:37,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:37,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:37,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-23 14:59:37,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:37,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:37,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:37,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-23 14:59:37,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:37,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:37,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:37,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:37,798 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:59:37,798 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:59:37,798 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:59:37,799 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:59:37,799 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:59:37,799 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:59:37,799 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:59:37,799 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:59:37,799 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 14:59:37,799 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:59:37,800 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:59:37,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:37,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:37,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:37,943 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:59:37,943 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:37,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:37,948 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:37,967 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:59:37,967 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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:37,969 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:37,970 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:37,995 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:59:37,995 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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:37,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:37,997 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:38,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:59:38,025 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:38,054 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:59:38,055 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:59:38,055 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:59:38,055 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:59:38,055 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:59:38,056 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:59:38,056 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:59:38,056 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:59:38,056 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:59:38,056 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 14:59:38,056 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:59:38,056 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:59:38,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,138 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:59:38,143 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:59:38,144 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 [2018-11-23 14:59:38,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:38,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:38,146 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:59:38,146 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:38,148 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:59:38,149 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:59:38,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:59:38,153 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 [2018-11-23 14:59:38,153 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:38,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:38,154 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:59:38,154 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:38,155 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:59:38,155 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:59:38,162 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:59:38,162 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 [2018-11-23 14:59:38,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:38,163 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:59:38,164 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:38,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:59:38,164 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:38,165 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:59:38,165 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:59:38,171 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:59:38,175 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 14:59:38,175 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:59:38,177 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:59:38,177 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:59:38,177 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:59:38,177 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 14:59:38,178 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:59:38,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:38,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:38,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:59:38,225 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 [2018-11-23 14:59:38,226 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-23 14:59:38,252 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 34 transitions. Complement of second has 5 states. [2018-11-23 14:59:38,253 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 [2018-11-23 14:59:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:59:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2018-11-23 14:59:38,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 14:59:38,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:38,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 14:59:38,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:38,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 14:59:38,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:38,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2018-11-23 14:59:38,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:38,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 15 transitions. [2018-11-23 14:59:38,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 14:59:38,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 14:59:38,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2018-11-23 14:59:38,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:59:38,263 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2018-11-23 14:59:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2018-11-23 14:59:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-11-23 14:59:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-23 14:59:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2018-11-23 14:59:38,280 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2018-11-23 14:59:38,280 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2018-11-23 14:59:38,280 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:59:38,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2018-11-23 14:59:38,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:38,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:59:38,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:59:38,281 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:59:38,281 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 14:59:38,281 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 68#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 69#L12 [2018-11-23 14:59:38,281 INFO L796 eck$LassoCheckResult]: Loop: 69#L12 assume !(main_~x~0 > 0); 63#L15 assume main_~y~0 > 0;main_~y~0 := main_~y~0 - 1; 64#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 69#L12 [2018-11-23 14:59:38,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:38,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 14:59:38,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:38,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:38,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:38,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-11-23 14:59:38,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:38,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:38,298 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-11-23 14:59:38,298 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:38,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:38,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:38,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:38,351 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:59:38,351 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:59:38,352 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:59:38,352 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:59:38,352 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:59:38,352 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:59:38,352 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:59:38,352 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:59:38,352 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 14:59:38,352 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:59:38,352 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:59:38,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:38,496 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:59:38,496 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:38,500 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:38,500 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:38,518 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:59:38,518 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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:38,524 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:38,524 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:38,547 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:59:38,547 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_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/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 [2018-11-23 14:59:38,552 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:59:38,552 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9e0eb28-ed51-4150-becf-a6dbc4b9c8a8/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:59:38,569 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:59:38,569 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:59:50,631 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 14:59:50,637 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:59:50,638 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:59:50,638 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:59:50,638 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:59:50,638 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:59:50,638 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:59:50,638 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:59:50,638 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:59:50,639 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 14:59:50,639 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:59:50,639 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:59:50,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:50,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:50,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:59:50,708 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:59:50,708 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:59:50,709 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 [2018-11-23 14:59:50,709 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:50,709 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:50,710 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:59:50,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:50,711 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:59:50,711 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:59:50,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:59:50,713 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 [2018-11-23 14:59:50,713 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:50,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:50,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:59:50,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:50,715 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:59:50,715 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:59:50,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:59:50,720 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 [2018-11-23 14:59:50,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:59:50,721 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:59:50,721 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:59:50,721 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 14:59:50,721 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:59:50,722 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 14:59:50,722 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:59:50,729 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:59:50,737 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 14:59:50,737 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 14:59:50,738 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:59:50,738 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:59:50,738 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:59:50,739 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 14:59:50,739 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:59:50,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:50,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:50,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:59:50,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 14:59:50,798 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-23 14:59:50,814 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 35 states and 53 transitions. Complement of second has 7 states. [2018-11-23 14:59:50,815 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 [2018-11-23 14:59:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 14:59:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-23 14:59:50,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-23 14:59:50,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:50,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 14:59:50,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:50,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-23 14:59:50,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:59:50,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2018-11-23 14:59:50,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:50,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 24 states and 35 transitions. [2018-11-23 14:59:50,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-23 14:59:50,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-23 14:59:50,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2018-11-23 14:59:50,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:59:50,819 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2018-11-23 14:59:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2018-11-23 14:59:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-11-23 14:59:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 14:59:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2018-11-23 14:59:50,822 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2018-11-23 14:59:50,822 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2018-11-23 14:59:50,822 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 14:59:50,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2018-11-23 14:59:50,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:59:50,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:59:50,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:59:50,823 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 14:59:50,823 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 14:59:50,823 INFO L794 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 153#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 163#L12 assume !(main_~x~0 > 0); 147#L15 [2018-11-23 14:59:50,823 INFO L796 eck$LassoCheckResult]: Loop: 147#L15 assume !(main_~y~0 > 0); 148#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 154#L12 assume !(main_~x~0 > 0); 147#L15 [2018-11-23 14:59:50,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:50,824 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-23 14:59:50,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:50,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:50,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:50,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:50,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:59:50,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:50,831 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-11-23 14:59:50,831 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:50,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:50,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:50,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:50,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:59:50,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:50,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:59:50,860 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-23 14:59:50,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:59:50,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:59:50,863 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-23 14:59:50,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:50,881 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2018-11-23 14:59:50,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:59:50,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2018-11-23 14:59:50,882 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:59:50,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2018-11-23 14:59:50,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 14:59:50,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 14:59:50,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 14:59:50,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:59:50,883 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:59:50,883 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:59:50,883 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:59:50,883 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 14:59:50,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:59:50,883 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:59:50,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 14:59:50,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:59:50 BoogieIcfgContainer [2018-11-23 14:59:50,887 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 14:59:50,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:59:50,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:59:50,888 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:59:50,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:37" (3/4) ... [2018-11-23 14:59:50,890 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:59:50,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:59:50,891 INFO L168 Benchmark]: Toolchain (without parser) took 13669.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 959.2 MB in the beginning and 944.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 144.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:59:50,892 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:59:50,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:59:50,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.40 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:59:50,893 INFO L168 Benchmark]: Boogie Preprocessor took 10.81 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:59:50,893 INFO L168 Benchmark]: RCFGBuilder took 162.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:59:50,894 INFO L168 Benchmark]: BuchiAutomizer took 13315.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.4 MB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:59:50,894 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 1.2 GB. Free memory is still 944.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:59:50,897 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 20.40 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.81 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 162.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13315.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.4 MB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 ms. Allocated memory is still 1.2 GB. Free memory is still 944.4 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 13.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 16 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf98 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq127 hnf96 smp100 dnf132 smp96 tf106 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...