./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Nested_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Nested_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/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 0baccb6c9a05802d446420fb16b8e65dc76eab5e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 09:21:16,771 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 09:21:16,772 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 09:21:16,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 09:21:16,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 09:21:16,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 09:21:16,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 09:21:16,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 09:21:16,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 09:21:16,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 09:21:16,782 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 09:21:16,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 09:21:16,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 09:21:16,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 09:21:16,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 09:21:16,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 09:21:16,784 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 09:21:16,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 09:21:16,786 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 09:21:16,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 09:21:16,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 09:21:16,788 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 09:21:16,789 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 09:21:16,789 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 09:21:16,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 09:21:16,790 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 09:21:16,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 09:21:16,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 09:21:16,791 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 09:21:16,791 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 09:21:16,791 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 09:21:16,792 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 09:21:16,792 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 09:21:16,792 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 09:21:16,793 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 09:21:16,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 09:21:16,793 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 09:21:16,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 09:21:16,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 09:21:16,802 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 09:21:16,802 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 09:21:16,802 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 09:21:16,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 09:21:16,803 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 09:21:16,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 09:21:16,804 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 09:21:16,805 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 09:21:16,805 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 09:21:16,805 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 09:21:16,805 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 09:21:16,806 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_710c0aa6-3799-4c89-bbeb-dc0a50591c65/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 -> 0baccb6c9a05802d446420fb16b8e65dc76eab5e [2018-12-02 09:21:16,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 09:21:16,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 09:21:16,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 09:21:16,832 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 09:21:16,832 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 09:21:16,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/java_Nested_true-termination_true-no-overflow.c [2018-12-02 09:21:16,869 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/data/278f671cd/690b434808714684ba7ea517848d9e00/FLAGb16ecca22 [2018-12-02 09:21:17,269 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 09:21:17,269 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/sv-benchmarks/c/termination-restricted-15/java_Nested_true-termination_true-no-overflow.c [2018-12-02 09:21:17,272 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/data/278f671cd/690b434808714684ba7ea517848d9e00/FLAGb16ecca22 [2018-12-02 09:21:17,281 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/data/278f671cd/690b434808714684ba7ea517848d9e00 [2018-12-02 09:21:17,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 09:21:17,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 09:21:17,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 09:21:17,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 09:21:17,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 09:21:17,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccbbe4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17, skipping insertion in model container [2018-12-02 09:21:17,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 09:21:17,301 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 09:21:17,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:21:17,390 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 09:21:17,399 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:21:17,407 INFO L195 MainTranslator]: Completed translation [2018-12-02 09:21:17,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17 WrapperNode [2018-12-02 09:21:17,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 09:21:17,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 09:21:17,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 09:21:17,408 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 09:21:17,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 09:21:17,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 09:21:17,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 09:21:17,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 09:21:17,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... [2018-12-02 09:21:17,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 09:21:17,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 09:21:17,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 09:21:17,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 09:21:17,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 09:21:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 09:21:17,576 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 09:21:17,576 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 09:21:17,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:17 BoogieIcfgContainer [2018-12-02 09:21:17,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 09:21:17,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 09:21:17,577 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 09:21:17,579 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 09:21:17,579 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:21:17,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 09:21:17" (1/3) ... [2018-12-02 09:21:17,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e28735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:21:17, skipping insertion in model container [2018-12-02 09:21:17,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:21:17,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:17" (2/3) ... [2018-12-02 09:21:17,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e28735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:21:17, skipping insertion in model container [2018-12-02 09:21:17,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:21:17,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:17" (3/3) ... [2018-12-02 09:21:17,581 INFO L375 chiAutomizerObserver]: Analyzing ICFG java_Nested_true-termination_true-no-overflow.c [2018-12-02 09:21:17,612 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 09:21:17,612 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 09:21:17,612 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 09:21:17,612 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 09:21:17,612 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 09:21:17,612 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 09:21:17,613 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 09:21:17,613 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 09:21:17,613 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 09:21:17,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 09:21:17,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:21:17,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,635 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,635 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 09:21:17,635 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 09:21:17,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 09:21:17,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:21:17,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,636 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,636 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 09:21:17,640 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 7#L10-2true [2018-12-02 09:21:17,640 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 10);main_~j~0 := 3; 3#L12-2true assume !(main_~j~0 < 12); 10#L12-3true main_~i~0 := 1 + main_~i~0; 7#L10-2true [2018-12-02 09:21:17,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,644 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 09:21:17,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:17,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,698 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-02 09:21:17,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:17,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:21:17,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 09:21:17,730 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:17,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 09:21:17,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 09:21:17,741 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-12-02 09:21:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:17,751 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-02 09:21:17,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 09:21:17,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-12-02 09:21:17,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 09:21:17,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2018-12-02 09:21:17,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-02 09:21:17,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-02 09:21:17,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2018-12-02 09:21:17,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:17,756 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-12-02 09:21:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2018-12-02 09:21:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-02 09:21:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-02 09:21:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-12-02 09:21:17,771 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-12-02 09:21:17,771 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-12-02 09:21:17,772 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 09:21:17,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-12-02 09:21:17,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 09:21:17,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,772 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,772 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-02 09:21:17,772 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 29#L10-2 [2018-12-02 09:21:17,772 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 26#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 27#L12-2 assume !(main_~j~0 < 12); 30#L12-3 main_~i~0 := 1 + main_~i~0; 29#L10-2 [2018-12-02 09:21:17,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,773 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-02 09:21:17,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:17,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2018-12-02 09:21:17,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,777 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:17,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:17,798 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:17,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:17,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,834 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:17,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-12-02 09:21:17,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:17,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 09:21:17,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 09:21:17,835 INFO L87 Difference]: Start difference. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-12-02 09:21:17,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:17,845 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2018-12-02 09:21:17,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 09:21:17,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2018-12-02 09:21:17,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-02 09:21:17,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 7 transitions. [2018-12-02 09:21:17,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-02 09:21:17,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-02 09:21:17,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-12-02 09:21:17,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:17,847 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-02 09:21:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-12-02 09:21:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-02 09:21:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-02 09:21:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-12-02 09:21:17,848 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-02 09:21:17,848 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-02 09:21:17,848 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 09:21:17,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-12-02 09:21:17,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-02 09:21:17,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,848 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,848 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2018-12-02 09:21:17,848 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 56#L10-2 [2018-12-02 09:21:17,849 INFO L796 eck$LassoCheckResult]: Loop: 56#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 53#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 54#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 58#L12-2 assume !(main_~j~0 < 12); 57#L12-3 main_~i~0 := 1 + main_~i~0; 56#L10-2 [2018-12-02 09:21:17,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,849 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2018-12-02 09:21:17,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:17,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash 38449199, now seen corresponding path program 2 times [2018-12-02 09:21:17,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,853 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,877 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:17,878 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:17,884 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 09:21:17,890 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 09:21:17,890 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:17,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,907 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:17,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-02 09:21:17,907 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:17,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 09:21:17,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-02 09:21:17,908 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-12-02 09:21:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:17,917 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-12-02 09:21:17,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 09:21:17,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2018-12-02 09:21:17,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-02 09:21:17,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 8 transitions. [2018-12-02 09:21:17,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-02 09:21:17,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-02 09:21:17,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-12-02 09:21:17,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:17,918 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-02 09:21:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-12-02 09:21:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-02 09:21:17,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-02 09:21:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-12-02 09:21:17,919 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-02 09:21:17,919 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-02 09:21:17,919 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 09:21:17,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-12-02 09:21:17,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-02 09:21:17,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,920 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,920 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [3, 1, 1, 1] [2018-12-02 09:21:17,920 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 89#L10-2 [2018-12-02 09:21:17,920 INFO L796 eck$LassoCheckResult]: Loop: 89#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 86#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 87#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 92#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 91#L12-2 assume !(main_~j~0 < 12); 90#L12-3 main_~i~0 := 1 + main_~i~0; 89#L10-2 [2018-12-02 09:21:17,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,920 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 4 times [2018-12-02 09:21:17,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,921 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:17,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:17,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1191926928, now seen corresponding path program 3 times [2018-12-02 09:21:17,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,925 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:17,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:17,949 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:17,957 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 09:21:17,963 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-02 09:21:17,963 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:17,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:17,981 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:17,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-12-02 09:21:17,981 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:17,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 09:21:17,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-02 09:21:17,982 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 6 states. [2018-12-02 09:21:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:17,993 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-12-02 09:21:17,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 09:21:17,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-12-02 09:21:17,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-12-02 09:21:17,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2018-12-02 09:21:17,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-02 09:21:17,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-02 09:21:17,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-12-02 09:21:17,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:17,995 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-02 09:21:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-12-02 09:21:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-02 09:21:17,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-02 09:21:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-12-02 09:21:17,996 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-02 09:21:17,996 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-02 09:21:17,996 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 09:21:17,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2018-12-02 09:21:17,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-12-02 09:21:17,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:17,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:17,997 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:17,997 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2018-12-02 09:21:17,997 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 128#L10-2 [2018-12-02 09:21:17,997 INFO L796 eck$LassoCheckResult]: Loop: 128#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 125#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 126#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 132#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 131#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 130#L12-2 assume !(main_~j~0 < 12); 129#L12-3 main_~i~0 := 1 + main_~i~0; 128#L10-2 [2018-12-02 09:21:17,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 5 times [2018-12-02 09:21:17,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:17,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:17,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:17,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:17,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1704969137, now seen corresponding path program 4 times [2018-12-02 09:21:18,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,003 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:18,040 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:18,047 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-02 09:21:18,052 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-02 09:21:18,053 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:18,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,080 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:18,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-02 09:21:18,080 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:18,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 09:21:18,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-12-02 09:21:18,081 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 7 states. [2018-12-02 09:21:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:18,095 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-02 09:21:18,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 09:21:18,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-12-02 09:21:18,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:21:18,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2018-12-02 09:21:18,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-02 09:21:18,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-02 09:21:18,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2018-12-02 09:21:18,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:18,097 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-12-02 09:21:18,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2018-12-02 09:21:18,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-02 09:21:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-02 09:21:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-12-02 09:21:18,098 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-12-02 09:21:18,098 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-12-02 09:21:18,098 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-02 09:21:18,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-12-02 09:21:18,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:21:18,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,099 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:18,099 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [5, 1, 1, 1] [2018-12-02 09:21:18,100 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 173#L10-2 [2018-12-02 09:21:18,100 INFO L796 eck$LassoCheckResult]: Loop: 173#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 170#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 171#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 178#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 177#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 176#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 175#L12-2 assume !(main_~j~0 < 12); 174#L12-3 main_~i~0 := 1 + main_~i~0; 173#L10-2 [2018-12-02 09:21:18,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,100 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 6 times [2018-12-02 09:21:18,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,101 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1314433936, now seen corresponding path program 5 times [2018-12-02 09:21:18,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,106 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:18,138 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:18,144 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-02 09:21:18,150 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-12-02 09:21:18,150 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:18,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,168 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:18,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-02 09:21:18,168 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:18,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 09:21:18,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-12-02 09:21:18,168 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 8 states. [2018-12-02 09:21:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:18,179 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-12-02 09:21:18,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 09:21:18,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2018-12-02 09:21:18,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-12-02 09:21:18,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 11 transitions. [2018-12-02 09:21:18,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-12-02 09:21:18,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-02 09:21:18,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:18,181 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-02 09:21:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-02 09:21:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-12-02 09:21:18,181 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-02 09:21:18,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2018-12-02 09:21:18,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-12-02 09:21:18,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,182 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:18,182 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [6, 1, 1, 1] [2018-12-02 09:21:18,182 INFO L794 eck$LassoCheckResult]: Stem: 223#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 224#L10-2 [2018-12-02 09:21:18,182 INFO L796 eck$LassoCheckResult]: Loop: 224#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 221#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 222#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 230#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 229#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 228#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 227#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 226#L12-2 assume !(main_~j~0 < 12); 225#L12-3 main_~i~0 := 1 + main_~i~0; 224#L10-2 [2018-12-02 09:21:18,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,182 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 7 times [2018-12-02 09:21:18,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,183 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2092744593, now seen corresponding path program 6 times [2018-12-02 09:21:18,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,230 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:18,230 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:18,236 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-02 09:21:18,242 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-12-02 09:21:18,242 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:18,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:18,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-02 09:21:18,261 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:18,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 09:21:18,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-12-02 09:21:18,261 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand 9 states. [2018-12-02 09:21:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:18,272 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-12-02 09:21:18,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 09:21:18,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-12-02 09:21:18,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-12-02 09:21:18,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2018-12-02 09:21:18,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-02 09:21:18,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 09:21:18,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2018-12-02 09:21:18,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:18,273 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-12-02 09:21:18,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2018-12-02 09:21:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-02 09:21:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-02 09:21:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-12-02 09:21:18,274 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-12-02 09:21:18,274 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-12-02 09:21:18,274 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-02 09:21:18,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2018-12-02 09:21:18,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-12-02 09:21:18,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,275 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:18,275 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [7, 1, 1, 1] [2018-12-02 09:21:18,275 INFO L794 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 281#L10-2 [2018-12-02 09:21:18,275 INFO L796 eck$LassoCheckResult]: Loop: 281#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 278#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 279#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 288#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 287#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 286#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 285#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 284#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 283#L12-2 assume !(main_~j~0 < 12); 282#L12-3 main_~i~0 := 1 + main_~i~0; 281#L10-2 [2018-12-02 09:21:18,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,276 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 8 times [2018-12-02 09:21:18,276 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,276 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,278 INFO L82 PathProgramCache]: Analyzing trace with hash -450571184, now seen corresponding path program 7 times [2018-12-02 09:21:18,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,279 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:18,324 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:18,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,366 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:18,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-02 09:21:18,366 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:18,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 09:21:18,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-12-02 09:21:18,366 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand 10 states. [2018-12-02 09:21:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:18,385 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-02 09:21:18,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 09:21:18,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2018-12-02 09:21:18,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-12-02 09:21:18,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 13 transitions. [2018-12-02 09:21:18,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-12-02 09:21:18,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-12-02 09:21:18,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-12-02 09:21:18,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:18,386 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-12-02 09:21:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-12-02 09:21:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-02 09:21:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-02 09:21:18,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-12-02 09:21:18,387 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-12-02 09:21:18,387 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-12-02 09:21:18,387 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-02 09:21:18,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2018-12-02 09:21:18,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-12-02 09:21:18,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,388 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:18,388 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [8, 1, 1, 1] [2018-12-02 09:21:18,388 INFO L794 eck$LassoCheckResult]: Stem: 343#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 344#L10-2 [2018-12-02 09:21:18,388 INFO L796 eck$LassoCheckResult]: Loop: 344#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 341#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 342#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 352#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 351#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 350#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 349#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 348#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 347#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 346#L12-2 assume !(main_~j~0 < 12); 345#L12-3 main_~i~0 := 1 + main_~i~0; 344#L10-2 [2018-12-02 09:21:18,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,389 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 9 times [2018-12-02 09:21:18,389 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,389 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1082803057, now seen corresponding path program 8 times [2018-12-02 09:21:18,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,392 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,392 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 09:21:18,440 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 09:21:18,446 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 09:21:18,452 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 09:21:18,452 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 09:21:18,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:18,471 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 09:21:18,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-12-02 09:21:18,471 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:21:18,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 09:21:18,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-02 09:21:18,472 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand 11 states. [2018-12-02 09:21:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:21:18,486 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-12-02 09:21:18,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 09:21:18,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2018-12-02 09:21:18,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2018-12-02 09:21:18,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2018-12-02 09:21:18,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-02 09:21:18,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-12-02 09:21:18,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2018-12-02 09:21:18,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:18,487 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-12-02 09:21:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2018-12-02 09:21:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-02 09:21:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-02 09:21:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-12-02 09:21:18,488 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-12-02 09:21:18,488 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-12-02 09:21:18,489 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-02 09:21:18,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2018-12-02 09:21:18,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2018-12-02 09:21:18,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,489 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 09:21:18,489 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [9, 1, 1, 1] [2018-12-02 09:21:18,489 INFO L794 eck$LassoCheckResult]: Stem: 412#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 413#L10-2 [2018-12-02 09:21:18,489 INFO L796 eck$LassoCheckResult]: Loop: 413#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 410#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 411#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 422#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 421#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 420#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 419#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 418#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 417#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 416#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 415#L12-2 assume !(main_~j~0 < 12); 414#L12-3 main_~i~0 := 1 + main_~i~0; 413#L10-2 [2018-12-02 09:21:18,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 10 times [2018-12-02 09:21:18,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,490 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash 792845360, now seen corresponding path program 9 times [2018-12-02 09:21:18,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,493 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,502 INFO L82 PathProgramCache]: Analyzing trace with hash 287286735, now seen corresponding path program 1 times [2018-12-02 09:21:18,502 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,503 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:18,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,629 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-12-02 09:21:18,645 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:18,646 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:18,646 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:18,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:18,646 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 09:21:18,646 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,646 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:18,646 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:18,647 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration10_Loop [2018-12-02 09:21:18,647 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:18,647 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:18,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,714 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:18,714 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,718 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:18,718 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:18,735 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:18,735 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_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,739 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:18,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:18,753 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:18,753 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_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:18,756 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:18,765 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:18,765 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=12} Honda state: {ULTIMATE.start_main_~j~0=12} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,786 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:18,786 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 09:21:18,811 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:18,826 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 09:21:18,827 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:18,827 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:18,827 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:18,827 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:18,827 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:21:18,827 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,827 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:18,827 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:18,827 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration10_Loop [2018-12-02 09:21:18,828 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:18,828 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:18,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,874 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:18,877 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:21:18,878 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:18,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:18,879 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:18,879 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:18,879 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:18,881 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:21:18,881 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:21:18,883 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:18,883 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:18,883 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:18,883 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:18,884 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:18,884 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:18,884 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:18,884 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:18,884 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:18,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:18,885 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:18,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:18,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:18,886 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:18,886 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:18,887 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:21:18,887 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:21:18,889 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:18,889 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:18,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:18,889 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:18,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:18,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:18,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:18,890 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:18,890 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:18,891 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:21:18,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 09:21:18,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 09:21:18,893 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:21:18,894 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 09:21:18,894 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:21:18,894 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2018-12-02 09:21:18,895 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 09:21:18,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:18,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-12-02 09:21:18,934 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 09:21:18,934 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-12-02 09:21:18,951 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 25 states and 28 transitions. Complement of second has 4 states. [2018-12-02 09:21:18,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:21:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 09:21:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 09:21:18,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 12 letters. [2018-12-02 09:21:18,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:18,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 13 letters. Loop has 12 letters. [2018-12-02 09:21:18,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:18,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 24 letters. [2018-12-02 09:21:18,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:18,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2018-12-02 09:21:18,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 09:21:18,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 27 transitions. [2018-12-02 09:21:18,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-02 09:21:18,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-12-02 09:21:18,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2018-12-02 09:21:18,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 09:21:18,956 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-12-02 09:21:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2018-12-02 09:21:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2018-12-02 09:21:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 09:21:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-12-02 09:21:18,957 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-12-02 09:21:18,957 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-12-02 09:21:18,957 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-02 09:21:18,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-12-02 09:21:18,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 09:21:18,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:18,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:18,958 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 09:21:18,958 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 09:21:18,958 INFO L794 eck$LassoCheckResult]: Stem: 510#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 511#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 507#L12-2 [2018-12-02 09:21:18,959 INFO L796 eck$LassoCheckResult]: Loop: 507#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 507#L12-2 [2018-12-02 09:21:18,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-02 09:21:18,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-02 09:21:18,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:18,966 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-02 09:21:18,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:18,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:18,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:18,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:18,977 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:18,977 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:18,977 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:18,977 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:18,977 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 09:21:18,978 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:18,978 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:18,978 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:18,978 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration11_Loop [2018-12-02 09:21:18,978 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:18,978 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:18,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:18,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,018 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:19,018 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,020 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,020 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,035 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:19,035 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_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,037 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,037 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:19,052 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_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,055 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,055 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 09:21:19,071 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,089 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:19,089 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,124 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,124 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,140 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 09:21:19,140 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,157 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 09:21:19,158 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:19,158 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:19,158 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:19,158 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:19,158 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:21:19,158 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,158 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:19,158 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:19,158 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration11_Loop [2018-12-02 09:21:19,158 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:19,158 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:19,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,188 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:19,188 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:21:19,189 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,189 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,190 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:21:19,190 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:21:19,191 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:19,191 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,192 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,192 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,192 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:21:19,193 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:21:19,194 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:19,194 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,195 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,195 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:19,195 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,195 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,195 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,195 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:19,195 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:19,196 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:19,196 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,196 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,196 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:19,196 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,196 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,196 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,197 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:19,197 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:19,198 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:21:19,199 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 09:21:19,199 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 09:21:19,199 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:21:19,199 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 09:21:19,199 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:21:19,199 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 23 Supporting invariants [] [2018-12-02 09:21:19,199 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 09:21:19,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:19,210 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 09:21:19,210 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-12-02 09:21:19,214 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 31 states and 36 transitions. Complement of second has 5 states. [2018-12-02 09:21:19,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:21:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 09:21:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 09:21:19,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-02 09:21:19,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-02 09:21:19,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-02 09:21:19,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2018-12-02 09:21:19,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 09:21:19,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 31 transitions. [2018-12-02 09:21:19,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-02 09:21:19,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-02 09:21:19,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2018-12-02 09:21:19,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 09:21:19,216 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-12-02 09:21:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2018-12-02 09:21:19,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2018-12-02 09:21:19,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 09:21:19,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-12-02 09:21:19,217 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-02 09:21:19,217 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-02 09:21:19,217 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-12-02 09:21:19,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2018-12-02 09:21:19,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-02 09:21:19,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:21:19,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:21:19,218 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [9, 2, 1, 1, 1] [2018-12-02 09:21:19,218 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 09:21:19,218 INFO L794 eck$LassoCheckResult]: Stem: 585#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 586#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 583#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 584#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 596#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 595#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 594#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 593#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 592#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 591#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 590#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 589#L12-2 assume !(main_~j~0 < 12); 588#L12-3 main_~i~0 := 1 + main_~i~0; 587#L10-2 assume !!(main_~i~0 < 10);main_~j~0 := 3; 582#L12-2 [2018-12-02 09:21:19,218 INFO L796 eck$LassoCheckResult]: Loop: 582#L12-2 assume !!(main_~j~0 < 12);main_~j~0 := main_~j~0 - 1;main_~c~0 := 1 + main_~c~0;main_~j~0 := 2 + main_~j~0; 582#L12-2 [2018-12-02 09:21:19,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,218 INFO L82 PathProgramCache]: Analyzing trace with hash 315954203, now seen corresponding path program 2 times [2018-12-02 09:21:19,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:19,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:19,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:21:19,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-12-02 09:21:19,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:19,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:19,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,229 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:19,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1204645720, now seen corresponding path program 3 times [2018-12-02 09:21:19,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:21:19,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:21:19,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,233 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:21:19,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:21:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:21:19,258 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:19,258 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:19,258 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:19,258 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:19,258 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 09:21:19,258 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,258 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:19,258 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:19,259 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration12_Loop [2018-12-02 09:21:19,259 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:19,259 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:19,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,305 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:19,305 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,306 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,307 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,323 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 09:21:19,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:19,341 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,356 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,356 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,371 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 09:21:19,371 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 09:21:19,374 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_710c0aa6-3799-4c89-bbeb-dc0a50591c65/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,390 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 09:21:19,391 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 09:21:19,406 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 09:21:19,407 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:21:19,407 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:21:19,407 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:21:19,408 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:21:19,408 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:21:19,408 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:21:19,408 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:21:19,408 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:21:19,408 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Nested_true-termination_true-no-overflow.c_Iteration12_Loop [2018-12-02 09:21:19,408 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:21:19,408 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:21:19,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:21:19,440 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:21:19,440 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:21:19,440 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,440 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,440 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:19,440 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,441 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,441 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,441 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:19,441 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:19,442 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:21:19,442 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 09:21:19,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:21:19,443 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:21:19,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:21:19,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:21:19,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:21:19,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:21:19,443 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:21:19,444 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:21:19,445 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 09:21:19,445 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 09:21:19,445 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:21:19,445 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 09:21:19,445 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:21:19,445 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 23 Supporting invariants [] [2018-12-02 09:21:19,445 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 09:21:19,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:19,464 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 09:21:19,464 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 09:21:19,469 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 29 states and 33 transitions. Complement of second has 5 states. [2018-12-02 09:21:19,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:21:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 09:21:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 09:21:19,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 14 letters. Loop has 1 letters. [2018-12-02 09:21:19,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,470 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 09:21:19,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:19,483 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 09:21:19,484 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 09:21:19,487 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 29 states and 33 transitions. Complement of second has 5 states. [2018-12-02 09:21:19,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:21:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 09:21:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 09:21:19,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 14 letters. Loop has 1 letters. [2018-12-02 09:21:19,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,488 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 09:21:19,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:21:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:21:19,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:21:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:21:19,503 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-02 09:21:19,503 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-02 09:21:19,507 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 18 states and 20 transitions. Complement of second has 4 states. [2018-12-02 09:21:19,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:21:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 09:21:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-02 09:21:19,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 14 letters. Loop has 1 letters. [2018-12-02 09:21:19,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 1 letters. [2018-12-02 09:21:19,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-02 09:21:19,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:21:19,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2018-12-02 09:21:19,509 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 09:21:19,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 09:21:19,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 09:21:19,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:21:19,510 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L442 BuchiCegarLoop]: ======== Iteration 13============ [2018-12-02 09:21:19,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 09:21:19,510 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 09:21:19,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 09:21:19,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 09:21:19 BoogieIcfgContainer [2018-12-02 09:21:19,514 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 09:21:19,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 09:21:19,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 09:21:19,515 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 09:21:19,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:17" (3/4) ... [2018-12-02 09:21:19,518 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 09:21:19,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 09:21:19,518 INFO L168 Benchmark]: Toolchain (without parser) took 2235.84 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2018-12-02 09:21:19,519 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:21:19,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.77 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 09:21:19,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:21:19,520 INFO L168 Benchmark]: Boogie Preprocessor took 11.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:21:19,520 INFO L168 Benchmark]: RCFGBuilder took 138.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-02 09:21:19,521 INFO L168 Benchmark]: BuchiAutomizer took 1937.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2018-12-02 09:21:19,521 INFO L168 Benchmark]: Witness Printer took 3.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:21:19,522 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.77 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 138.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1937.37 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. 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 12 terminating modules (9 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 19 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. 9 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 13 iterations. TraceHistogramMax:9. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 10. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 10. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 45/45 HoareTripleCheckerStatistics: 62 SDtfs, 21 SDslu, 50 SDs, 0 SdLazy, 157 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI9 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax171 hnf99 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...