./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_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_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 90c8922c67b3eb8c55716b63a408098d1b23a21e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:12:28,171 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:12:28,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:12:28,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:12:28,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:12:28,179 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:12:28,180 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:12:28,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:12:28,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:12:28,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:12:28,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:12:28,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:12:28,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:12:28,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:12:28,184 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:12:28,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:12:28,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:12:28,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:12:28,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:12:28,187 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:12:28,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:12:28,189 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:12:28,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:12:28,190 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:12:28,190 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:12:28,190 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:12:28,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:12:28,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:12:28,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:12:28,192 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:12:28,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:12:28,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:12:28,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:12:28,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:12:28,193 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:12:28,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:12:28,194 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 08:12:28,202 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:12:28,202 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:12:28,203 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:12:28,203 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 08:12:28,203 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 08:12:28,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:12:28,204 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 08:12:28,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:12:28,205 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:12:28,205 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 08:12:28,205 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:12:28,205 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:12:28,205 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 08:12:28,205 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 08:12:28,206 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_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2018-12-08 08:12:28,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:12:28,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:12:28,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:12:28,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:12:28,235 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:12:28,235 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-12-08 08:12:28,275 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/data/42adb7960/f55013a5c26a46e08a490c6ec6b3daf5/FLAGf865ca952 [2018-12-08 08:12:28,659 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:12:28,660 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-12-08 08:12:28,663 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/data/42adb7960/f55013a5c26a46e08a490c6ec6b3daf5/FLAGf865ca952 [2018-12-08 08:12:28,672 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/data/42adb7960/f55013a5c26a46e08a490c6ec6b3daf5 [2018-12-08 08:12:28,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:12:28,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:12:28,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:12:28,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:12:28,679 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:12:28,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428c1b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28, skipping insertion in model container [2018-12-08 08:12:28,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:12:28,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:12:28,778 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:12:28,781 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:12:28,789 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:12:28,796 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:12:28,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28 WrapperNode [2018-12-08 08:12:28,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:12:28,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:12:28,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:12:28,797 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:12:28,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:12:28,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:12:28,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:12:28,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:12:28,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... [2018-12-08 08:12:28,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:12:28,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:12:28,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:12:28,824 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:12:28,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:12:28,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:12:28,959 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:12:28,960 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 08:12:28,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:12:28 BoogieIcfgContainer [2018-12-08 08:12:28,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:12:28,960 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 08:12:28,960 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 08:12:28,962 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 08:12:28,963 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:12:28,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 08:12:28" (1/3) ... [2018-12-08 08:12:28,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f2a3921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:12:28, skipping insertion in model container [2018-12-08 08:12:28,963 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:12:28,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:12:28" (2/3) ... [2018-12-08 08:12:28,964 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f2a3921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:12:28, skipping insertion in model container [2018-12-08 08:12:28,964 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:12:28,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:12:28" (3/3) ... [2018-12-08 08:12:28,965 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv_true-termination_true-no-overflow.c [2018-12-08 08:12:28,999 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:12:29,000 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 08:12:29,000 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 08:12:29,000 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 08:12:29,000 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:12:29,000 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:12:29,000 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 08:12:29,000 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:12:29,000 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 08:12:29,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 08:12:29,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 08:12:29,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:29,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:29,025 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 08:12:29,025 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 08:12:29,025 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 08:12:29,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 08:12:29,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 08:12:29,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:29,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:29,026 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 08:12:29,027 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 08:12:29,031 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-2true [2018-12-08 08:12:29,031 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2018-12-08 08:12:29,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,035 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-08 08:12:29,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,093 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-08 08:12:29,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,105 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-12-08 08:12:29,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,161 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:29,162 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:29,162 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:29,162 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:29,162 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 08:12:29,162 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,162 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:29,162 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:29,162 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 08:12:29,163 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:29,163 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:29,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,254 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:29,254 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,278 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:29,278 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_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,281 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,304 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:29,304 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_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,307 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,307 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,324 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 08:12:29,325 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,343 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 08:12:29,343 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:29,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:29,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:29,344 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:29,344 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 08:12:29,344 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,344 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:29,344 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:29,344 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 08:12:29,344 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:29,344 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:29,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:29,391 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 08:12:29,392 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 [2018-12-08 08:12:29,392 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,393 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:29,393 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,393 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,393 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,394 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:29,395 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:29,399 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 08:12:29,402 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 08:12:29,402 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 08:12:29,404 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 08:12:29,404 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 08:12:29,404 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 08:12:29,404 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-12-08 08:12:29,405 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 08:12:29,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:29,449 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 [2018-12-08 08:12:29,449 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-08 08:12:29,477 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-12-08 08:12:29,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-08 08:12:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 08:12:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-12-08 08:12:29,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-12-08 08:12:29,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-08 08:12:29,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-12-08 08:12:29,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-12-08 08:12:29,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:29,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-12-08 08:12:29,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-08 08:12:29,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-08 08:12:29,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-08 08:12:29,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 08:12:29,489 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-08 08:12:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-08 08:12:29,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-12-08 08:12:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-08 08:12:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-12-08 08:12:29,504 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-12-08 08:12:29,504 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-12-08 08:12:29,504 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 08:12:29,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-12-08 08:12:29,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:29,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:29,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:29,505 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 08:12:29,505 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 08:12:29,505 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2018-12-08 08:12:29,505 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2018-12-08 08:12:29,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-08 08:12:29,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,511 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-08 08:12:29,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-08 08:12:29,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,545 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:29,545 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:29,545 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:29,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:29,546 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 08:12:29,546 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,546 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:29,546 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:29,546 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-12-08 08:12:29,546 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:29,546 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:29,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,612 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:29,612 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,614 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,614 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,629 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:29,629 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_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,632 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:29,634 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,649 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:29,649 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,665 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 08:12:29,666 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:29,682 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 08:12:29,683 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:29,683 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:29,683 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:29,683 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:29,683 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 08:12:29,684 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:29,684 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:29,684 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:29,684 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-12-08 08:12:29,684 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:29,684 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:29,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:29,740 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:29,740 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 08:12:29,740 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 [2018-12-08 08:12:29,741 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,741 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,741 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,741 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,742 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:29,743 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:29,745 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:29,745 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 [2018-12-08 08:12:29,746 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,746 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:29,746 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,746 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,746 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,746 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:29,747 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:29,747 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:29,747 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 [2018-12-08 08:12:29,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,748 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:29,748 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,748 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,749 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,749 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:29,749 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:29,750 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:29,750 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 [2018-12-08 08:12:29,750 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,750 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:29,751 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,751 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,751 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,751 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:29,751 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:29,752 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:29,753 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 [2018-12-08 08:12:29,753 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:29,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:29,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:29,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:29,756 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:29,756 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:29,785 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 08:12:29,795 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-08 08:12:29,796 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-08 08:12:29,796 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 08:12:29,797 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-08 08:12:29,798 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 08:12:29,798 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2147483648*ULTIMATE.start_main_~y~0 + 2147483647*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-12-08 08:12:29,801 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-08 08:12:29,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:29,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:29,846 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 [2018-12-08 08:12:29,846 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-12-08 08:12:29,866 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-12-08 08:12:29,867 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 [2018-12-08 08:12:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 08:12:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-08 08:12:29,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-08 08:12:29,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 08:12:29,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-08 08:12:29,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:29,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-12-08 08:12:29,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:29,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-12-08 08:12:29,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-08 08:12:29,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-08 08:12:29,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-12-08 08:12:29,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 08:12:29,869 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-12-08 08:12:29,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-12-08 08:12:29,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-12-08 08:12:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-08 08:12:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-12-08 08:12:29,870 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-12-08 08:12:29,870 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-12-08 08:12:29,870 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 08:12:29,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-12-08 08:12:29,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:29,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:29,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:29,871 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-12-08 08:12:29,871 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 08:12:29,871 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 132#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2018-12-08 08:12:29,871 INFO L796 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2018-12-08 08:12:29,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,871 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-12-08 08:12:29,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,877 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-12-08 08:12:29,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,878 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:29,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:29,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:29,881 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-12-08 08:12:29,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:29,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:29,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,882 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:29,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:29,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:12:29,916 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:12:29,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:29,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:29,955 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:12:29,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-12-08 08:12:29,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 08:12:29,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 08:12:29,968 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 7 states. [2018-12-08 08:12:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:12:30,003 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-12-08 08:12:30,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:12:30,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-12-08 08:12:30,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:30,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2018-12-08 08:12:30,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 08:12:30,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-08 08:12:30,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-12-08 08:12:30,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 08:12:30,005 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 08:12:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-12-08 08:12:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-08 08:12:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-08 08:12:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-12-08 08:12:30,006 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-08 08:12:30,006 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-08 08:12:30,006 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 08:12:30,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-12-08 08:12:30,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:30,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:30,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:30,008 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-12-08 08:12:30,008 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 08:12:30,008 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 184#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 181#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 182#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 186#L12-3 main_~x~0 := main_~x~0 - 1; 185#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 180#L12-2 [2018-12-08 08:12:30,008 INFO L796 eck$LassoCheckResult]: Loop: 180#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 180#L12-2 [2018-12-08 08:12:30,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,008 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2018-12-08 08:12:30,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:12:30,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,017 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2018-12-08 08:12:30,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,018 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:30,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2018-12-08 08:12:30,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:30,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:30,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:12:30,046 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:12:30,054 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 08:12:30,059 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 08:12:30,059 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:12:30,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:30,110 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:12:30,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-12-08 08:12:30,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 08:12:30,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:12:30,128 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 8 states. [2018-12-08 08:12:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:12:30,157 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-08 08:12:30,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:12:30,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2018-12-08 08:12:30,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:30,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2018-12-08 08:12:30,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-08 08:12:30,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 08:12:30,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2018-12-08 08:12:30,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 08:12:30,159 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-12-08 08:12:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2018-12-08 08:12:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2018-12-08 08:12:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-08 08:12:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-12-08 08:12:30,160 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 08:12:30,160 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 08:12:30,160 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 08:12:30,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-12-08 08:12:30,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 08:12:30,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:12:30,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:12:30,161 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2018-12-08 08:12:30,161 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 08:12:30,161 INFO L794 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 242#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 239#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 240#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 245#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 244#L12-3 main_~x~0 := main_~x~0 - 1; 243#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 238#L12-2 [2018-12-08 08:12:30,162 INFO L796 eck$LassoCheckResult]: Loop: 238#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 238#L12-2 [2018-12-08 08:12:30,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2018-12-08 08:12:30,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,163 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:30,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,169 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2018-12-08 08:12:30,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,170 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:30,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,172 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2018-12-08 08:12:30,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:12:30,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:12:30,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:12:30,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:12:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:12:30,240 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:30,240 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:30,240 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:30,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:30,240 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 08:12:30,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:30,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:30,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:30,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-12-08 08:12:30,240 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:30,240 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:30,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,295 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:30,295 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:30,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:30,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:30,299 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:30,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:30,315 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:30,315 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:30,329 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:30,331 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:30,331 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:30,346 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:30,360 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 08:12:30,360 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,363 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 08:12:30,363 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0806e557-e1b7-4269-a7b9-4ece58ff7eb4/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 [2018-12-08 08:12:30,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 08:12:30,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 08:12:30,396 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 08:12:30,397 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 08:12:30,397 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 08:12:30,397 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 08:12:30,397 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 08:12:30,397 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 08:12:30,397 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 08:12:30,397 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 08:12:30,397 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 08:12:30,397 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-12-08 08:12:30,398 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 08:12:30,398 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 08:12:30,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 08:12:30,451 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 08:12:30,451 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 08:12:30,451 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 [2018-12-08 08:12:30,451 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,452 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:30,452 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,452 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,452 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,452 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:30,452 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:30,453 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,453 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 [2018-12-08 08:12:30,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,453 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:30,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,453 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,454 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:30,454 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:30,454 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,454 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 [2018-12-08 08:12:30,454 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,455 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 08:12:30,455 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,455 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,455 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,455 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 08:12:30,456 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 08:12:30,456 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,456 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 [2018-12-08 08:12:30,457 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,457 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,457 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,457 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,458 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:30,458 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:30,460 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,460 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 [2018-12-08 08:12:30,461 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,461 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,461 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,461 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:30,462 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:30,464 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,464 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 [2018-12-08 08:12:30,465 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,465 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,465 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,465 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,466 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:30,476 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:30,478 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 08:12:30,478 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 [2018-12-08 08:12:30,479 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 08:12:30,479 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 08:12:30,479 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 08:12:30,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 08:12:30,481 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 08:12:30,481 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 08:12:30,496 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 08:12:30,503 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-08 08:12:30,503 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-08 08:12:30,504 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 08:12:30,505 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-08 08:12:30,505 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 08:12:30,505 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-12-08 08:12:30,506 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-08 08:12:30,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:30,546 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 [2018-12-08 08:12:30,546 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-08 08:12:30,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2018-12-08 08:12:30,562 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 [2018-12-08 08:12:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 08:12:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-08 08:12:30,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 08:12:30,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:30,562 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 08:12:30,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:30,579 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 [2018-12-08 08:12:30,579 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-08 08:12:30,593 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2018-12-08 08:12:30,594 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 [2018-12-08 08:12:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 08:12:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-08 08:12:30,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 08:12:30,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:30,594 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 08:12:30,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:12:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:12:30,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:12:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:12:30,610 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 [2018-12-08 08:12:30,611 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-08 08:12:30,623 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 13 transitions. Complement of second has 4 states. [2018-12-08 08:12:30,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 08:12:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 08:12:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-08 08:12:30,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 08:12:30,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:30,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-08 08:12:30,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:30,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 08:12:30,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 08:12:30,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-12-08 08:12:30,624 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 08:12:30,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-12-08 08:12:30,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 08:12:30,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 08:12:30,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 08:12:30,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 08:12:30,625 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:12:30,625 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:12:30,625 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:12:30,625 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-08 08:12:30,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 08:12:30,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 08:12:30,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 08:12:30,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 08:12:30 BoogieIcfgContainer [2018-12-08 08:12:30,629 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 08:12:30,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:12:30,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:12:30,629 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:12:30,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:12:28" (3/4) ... [2018-12-08 08:12:30,633 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:12:30,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:12:30,633 INFO L168 Benchmark]: Toolchain (without parser) took 1959.08 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.0 MB). Free memory was 962.4 MB in the beginning and 1.2 GB in the end (delta: -216.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:12:30,634 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:12:30,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.12 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:12:30,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:12:30,635 INFO L168 Benchmark]: Boogie Preprocessor took 10.10 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:12:30,635 INFO L168 Benchmark]: RCFGBuilder took 135.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 08:12:30,635 INFO L168 Benchmark]: BuchiAutomizer took 1668.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -43.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-12-08 08:12:30,636 INFO L168 Benchmark]: Witness Printer took 3.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:12:30,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.12 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.10 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1668.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -43.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2147483648 * y + 2147483647 * x and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 29 SDslu, 10 SDs, 0 SdLazy, 75 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 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...