./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_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_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 4c761fb15c9d367876fc9f1553874e9680fa1668 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:31:44,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:31:44,573 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:31:44,579 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:31:44,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:31:44,580 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:31:44,581 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:31:44,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:31:44,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:31:44,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:31:44,585 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:31:44,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:31:44,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:31:44,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:31:44,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:31:44,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:31:44,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:31:44,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:31:44,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:31:44,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:31:44,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:31:44,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:31:44,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:31:44,596 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:31:44,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:31:44,597 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:31:44,598 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:31:44,598 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:31:44,599 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:31:44,599 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:31:44,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:31:44,600 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:31:44,600 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:31:44,600 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:31:44,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:31:44,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:31:44,601 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 14:31:44,610 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:31:44,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:31:44,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:31:44,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:31:44,611 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:31:44,611 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:31:44,611 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:31:44,611 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:31:44,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:31:44,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:31:44,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:31:44,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:31:44,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:31:44,613 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:31:44,615 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:31:44,615 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:31:44,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:31:44,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:31:44,615 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:31:44,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:31:44,616 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:31:44,616 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:31:44,617 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:31:44,617 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_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2018-11-23 14:31:44,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:31:44,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:31:44,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:31:44,652 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:31:44,652 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:31:44,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 14:31:44,695 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/data/87e914b6f/576e1851fb4b4dd580dc598bcc1d10d1/FLAGddf5b9b09 [2018-11-23 14:31:45,088 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:31:45,089 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 14:31:45,094 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/data/87e914b6f/576e1851fb4b4dd580dc598bcc1d10d1/FLAGddf5b9b09 [2018-11-23 14:31:45,106 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/data/87e914b6f/576e1851fb4b4dd580dc598bcc1d10d1 [2018-11-23 14:31:45,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:31:45,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:31:45,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:45,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:31:45,113 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:31:45,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3c8a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45, skipping insertion in model container [2018-11-23 14:31:45,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:31:45,133 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:31:45,258 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:45,260 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:31:45,269 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:45,278 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:31:45,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45 WrapperNode [2018-11-23 14:31:45,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:45,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:45,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:31:45,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:31:45,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:45,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:31:45,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:31:45,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:31:45,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... [2018-11-23 14:31:45,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:31:45,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:31:45,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:31:45,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:31:45,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:31:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:31:45,496 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:31:45,497 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 14:31:45,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:45 BoogieIcfgContainer [2018-11-23 14:31:45,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:31:45,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:31:45,498 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:31:45,501 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:31:45,501 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:31:45,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:31:45" (1/3) ... [2018-11-23 14:31:45,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ae9b290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:31:45, skipping insertion in model container [2018-11-23 14:31:45,502 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:31:45,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:45" (2/3) ... [2018-11-23 14:31:45,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ae9b290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:31:45, skipping insertion in model container [2018-11-23 14:31:45,503 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:31:45,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:45" (3/3) ... [2018-11-23 14:31:45,505 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 14:31:45,554 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:31:45,555 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:31:45,555 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:31:45,555 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:31:45,555 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:31:45,555 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:31:45,555 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:31:45,555 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:31:45,556 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:31:45,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 14:31:45,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:45,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:31:45,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:31:45,589 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:31:45,589 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:31:45,589 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:31:45,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 14:31:45,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:45,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:31:45,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:31:45,591 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:31:45,591 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:31:45,598 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 7#L19-2true [2018-11-23 14:31:45,598 INFO L796 eck$LassoCheckResult]: Loop: 7#L19-2true assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 9#L19true assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 7#L19-2true [2018-11-23 14:31:45,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:45,604 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-23 14:31:45,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:45,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:45,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:45,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-23 14:31:45,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:45,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:45,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:45,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:45,680 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-23 14:31:45,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:45,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:45,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:45,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:45,734 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:45,735 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:45,735 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:45,735 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:45,735 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:31:45,735 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:45,735 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:45,735 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:45,736 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 14:31:45,736 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:45,736 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:45,758 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 14:31:45,775 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 14:31:45,788 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 14:31:45,834 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:45,835 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:45,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:45,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:45,858 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:31:45,858 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_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:45,864 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:45,864 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:45,880 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:31:45,880 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_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:45,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:45,885 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:45,902 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:31:45,902 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:46,033 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:31:46,034 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:46,034 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:46,034 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:46,034 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:46,034 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:31:46,034 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,034 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:46,034 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:46,034 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 14:31:46,034 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:46,034 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:46,036 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 14:31:46,038 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 14:31:46,055 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 14:31:46,102 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:46,107 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:31:46,108 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 14:31:46,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:46,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:46,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:46,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:46,114 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:31:46,114 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:31:46,119 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:31:46,120 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 14:31:46,120 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:46,120 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:31:46,121 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:46,121 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:46,121 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:46,122 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:31:46,122 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:31:46,126 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:31:46,132 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 14:31:46,133 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:31:46,134 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:31:46,134 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:31:46,135 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:31:46,135 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 14:31:46,136 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:31:46,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:46,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:46,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:46,180 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 14:31:46,192 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 14:31:46,192 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-23 14:31:46,222 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2018-11-23 14:31:46,222 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 14:31:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-23 14:31:46,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 14:31:46,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 14:31:46,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-23 14:31:46,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-23 14:31:46,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:46,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-23 14:31:46,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 14:31:46,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 14:31:46,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-23 14:31:46,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:31:46,233 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 14:31:46,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-23 14:31:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-23 14:31:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 14:31:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-23 14:31:46,249 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 14:31:46,249 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 14:31:46,249 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:31:46,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-11-23 14:31:46,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:46,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:31:46,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:31:46,250 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 14:31:46,250 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:31:46,250 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 73#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 74#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 79#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 75#L19-2 [2018-11-23 14:31:46,250 INFO L796 eck$LassoCheckResult]: Loop: 75#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 76#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 75#L19-2 [2018-11-23 14:31:46,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,250 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-23 14:31:46,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:46,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-23 14:31:46,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,261 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2018-11-23 14:31:46,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:31:46,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:31:46,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:31:46,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:31:46,313 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:46,313 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:46,313 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:46,313 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:46,313 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:31:46,313 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,313 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:46,313 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:46,314 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 14:31:46,314 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:46,314 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:46,315 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 14:31:46,317 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 14:31:46,319 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 14:31:46,359 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:46,360 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:46,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:46,368 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:46,384 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:31:46,384 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_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:46,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:46,388 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:46,403 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:31:46,403 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_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:46,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:46,406 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/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 14:31:46,422 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:31:46,422 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:46,524 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:31:46,525 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:46,525 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:46,525 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:46,525 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:46,525 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:31:46,525 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,525 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:46,525 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:46,525 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 14:31:46,525 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:46,525 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:46,526 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 14:31:46,528 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 14:31:46,529 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 14:31:46,570 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:46,570 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:31:46,570 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 14:31:46,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:46,571 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:46,571 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:46,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:46,573 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:31:46,573 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:31:46,575 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:31:46,575 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 14:31:46,576 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:46,576 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:46,576 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:46,576 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:46,577 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:31:46,577 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:31:46,581 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:31:46,581 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 14:31:46,581 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:46,582 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:31:46,582 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:46,582 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:46,582 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:46,583 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:31:46,583 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:31:46,586 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:31:46,589 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 14:31:46,589 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:31:46,589 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:31:46,590 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:31:46,590 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:31:46,590 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 14:31:46,590 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:31:46,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:46,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:46,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:46,614 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 14:31:46,614 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 14:31:46,615 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-23 14:31:46,623 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-11-23 14:31:46,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 14:31:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-23 14:31:46,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 14:31:46,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 14:31:46,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 14:31:46,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:46,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-11-23 14:31:46,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:46,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2018-11-23 14:31:46,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 14:31:46,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-23 14:31:46,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2018-11-23 14:31:46,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:31:46,628 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-23 14:31:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2018-11-23 14:31:46,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 14:31:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 14:31:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-11-23 14:31:46,629 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-23 14:31:46,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:31:46,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:31:46,633 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 5 states. [2018-11-23 14:31:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:31:46,648 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-11-23 14:31:46,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:31:46,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-23 14:31:46,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:46,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2018-11-23 14:31:46,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-23 14:31:46,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-23 14:31:46,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2018-11-23 14:31:46,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:31:46,650 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-23 14:31:46,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2018-11-23 14:31:46,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2018-11-23 14:31:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 14:31:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-23 14:31:46,651 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-23 14:31:46,652 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-23 14:31:46,652 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 14:31:46,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-23 14:31:46,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:46,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:31:46,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:31:46,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 14:31:46,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:31:46,653 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 157#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 158#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 160#L19 [2018-11-23 14:31:46,653 INFO L796 eck$LassoCheckResult]: Loop: 160#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 159#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 160#L19 [2018-11-23 14:31:46,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,653 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-11-23 14:31:46,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:46,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-11-23 14:31:46,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:46,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:46,665 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 2 times [2018-11-23 14:31:46,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:46,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:46,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:46,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:46,705 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:46,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:46,705 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:46,705 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:46,706 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:31:46,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:46,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:46,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 14:31:46,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:46,706 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:46,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:31:46,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:31:46,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:31:46,741 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:46,741 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,743 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:46,743 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,760 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:31:46,760 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:46,977 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:31:46,978 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:46,978 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:46,978 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:46,978 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:46,978 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:31:46,978 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:46,979 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:46,979 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:46,979 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 14:31:46,979 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:46,979 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:46,980 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 14:31:46,984 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 14:31:46,986 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 14:31:47,006 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:47,006 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:31:47,006 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 14:31:47,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:47,007 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:31:47,007 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:47,007 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:47,007 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:47,008 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:31:47,008 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:31:47,010 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:31:47,013 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 14:31:47,013 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:31:47,013 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:31:47,014 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:31:47,014 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:31:47,014 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 14:31:47,014 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:31:47,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,038 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 14:31:47,038 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 14:31:47,039 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-23 14:31:47,046 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 14 transitions. Complement of second has 5 states. [2018-11-23 14:31:47,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 14:31:47,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 14:31:47,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 14:31:47,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 14:31:47,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-23 14:31:47,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-23 14:31:47,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:47,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2018-11-23 14:31:47,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 14:31:47,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 14:31:47,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-23 14:31:47,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:31:47,050 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-23 14:31:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-23 14:31:47,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-23 14:31:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 14:31:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-23 14:31:47,051 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-23 14:31:47,051 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-23 14:31:47,051 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 14:31:47,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-23 14:31:47,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 14:31:47,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:31:47,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:31:47,052 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-23 14:31:47,052 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 14:31:47,052 INFO L794 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 212#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 213#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 214#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 215#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 216#L19 [2018-11-23 14:31:47,053 INFO L796 eck$LassoCheckResult]: Loop: 216#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 217#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 216#L19 [2018-11-23 14:31:47,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,053 INFO L82 PathProgramCache]: Analyzing trace with hash 29684838, now seen corresponding path program 2 times [2018-11-23 14:31:47,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:47,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:47,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,054 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:31:47,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:47,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 2 times [2018-11-23 14:31:47,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:47,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:47,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,061 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:31:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:47,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 2 times [2018-11-23 14:31:47,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:47,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:47,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,066 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:31:47,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:31:47,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:31:47,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:31:47,115 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:47,115 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:47,116 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:47,116 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:47,116 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:31:47,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:47,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:47,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:47,116 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 14:31:47,116 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:47,116 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:47,117 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 14:31:47,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:31:47,124 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 14:31:47,156 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:47,156 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:47,158 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:47,158 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:47,174 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:31:47,174 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:47,177 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:31:47,177 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51f036b9-f06c-4adb-8c78-5d19de57abfa/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:47,194 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:31:47,194 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:31:47,434 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:31:47,435 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:31:47,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:31:47,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:31:47,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:31:47,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:31:47,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:31:47,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:31:47,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:31:47,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 14:31:47,436 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:31:47,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:31:47,437 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 14:31:47,443 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 14:31:47,445 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 14:31:47,470 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:31:47,470 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:31:47,471 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 14:31:47,471 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:31:47,471 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:31:47,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:31:47,472 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:31:47,472 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:31:47,472 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:31:47,472 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:31:47,474 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:31:47,476 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 14:31:47,477 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:31:47,477 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:31:47,477 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:31:47,477 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:31:47,477 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 14:31:47,477 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:31:47,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,509 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 14:31:47,509 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 14:31:47,509 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 14:31:47,513 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-23 14:31:47,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 14:31:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-23 14:31:47,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 14:31:47,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,514 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 14:31:47,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,547 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 14:31:47,547 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 14:31:47,547 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 14:31:47,550 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-23 14:31:47,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 14:31:47,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-23 14:31:47,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 14:31:47,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,551 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 14:31:47,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:47,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:47,573 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 14:31:47,574 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 14:31:47,574 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 14:31:47,579 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 9 states and 10 transitions. Complement of second has 4 states. [2018-11-23 14:31:47,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 14:31:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:31:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-23 14:31:47,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 14:31:47,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 14:31:47,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 14:31:47,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:31:47,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-23 14:31:47,582 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:31:47,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-23 14:31:47,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 14:31:47,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 14:31:47,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 14:31:47,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:31:47,583 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:31:47,583 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:31:47,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:31:47,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:31:47,583 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-23 14:31:47,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:31:47,583 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 14:31:47,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:31:47,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 14:31:47,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 14:31:47,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:31:47,584 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 14:31:47,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:31:47,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:31:47,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 14:31:47,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:31:47 BoogieIcfgContainer [2018-11-23 14:31:47,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 14:31:47,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:31:47,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:31:47,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:31:47,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:45" (3/4) ... [2018-11-23 14:31:47,592 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:31:47,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:31:47,593 INFO L168 Benchmark]: Toolchain (without parser) took 2484.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 959.2 MB in the beginning and 877.1 MB in the end (delta: 82.2 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:47,594 INFO L168 Benchmark]: CDTParser took 0.14 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 14:31:47,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.46 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 14:31:47,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.66 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 14:31:47,595 INFO L168 Benchmark]: Boogie Preprocessor took 16.93 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 14:31:47,595 INFO L168 Benchmark]: RCFGBuilder took 173.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:47,596 INFO L168 Benchmark]: BuchiAutomizer took 2091.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 877.1 MB in the end (delta: 237.8 MB). Peak memory consumption was 237.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:47,596 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 1.2 GB. Free memory is still 877.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:31:47,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 168.46 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 27.66 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 16.93 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 173.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2091.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 877.1 MB in the end (delta: 237.8 MB). Peak memory consumption was 237.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.18 ms. Allocated memory is still 1.2 GB. Free memory is still 877.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 4 locations. One deterministic module has affine ranking function -1 * x + y and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 29 SDslu, 3 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...