./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:50,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:50,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:50,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:50,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:50,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:50,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:50,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:50,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:50,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:50,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:50,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:50,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:50,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:50,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:50,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:50,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:50,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:50,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:50,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:50,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:50,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:50,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:50,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:50,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:50,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:50,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:50,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:50,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:50,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:50,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:50,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:50,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:50,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:50,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:50,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:50,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:50,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:50,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:50,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:50,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:50,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:57:50,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:50,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:50,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:50,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:50,860 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:50,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:50,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:50,860 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:50,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:50,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:50,861 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:50,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:50,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:50,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:50,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:50,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:50,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:50,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:50,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:50,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:50,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:50,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:50,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:50,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:50,864 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:50,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:50,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:50,865 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:50,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:50,866 INFO L138 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/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-11-25 08:57:51,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:51,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:51,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:51,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:51,023 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:51,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-25 08:57:51,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/data/71fd64b4d/9b81fd8c069d4c76b42479883d2a56ec/FLAGeb28ac296 [2019-11-25 08:57:51,484 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:51,484 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-25 08:57:51,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/data/71fd64b4d/9b81fd8c069d4c76b42479883d2a56ec/FLAGeb28ac296 [2019-11-25 08:57:51,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/data/71fd64b4d/9b81fd8c069d4c76b42479883d2a56ec [2019-11-25 08:57:51,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:51,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:51,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:51,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:51,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:51,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d99efa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51, skipping insertion in model container [2019-11-25 08:57:51,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:51,532 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:51,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:51,655 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:51,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:51,746 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:51,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51 WrapperNode [2019-11-25 08:57:51,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:51,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:51,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:51,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:51,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:51,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:51,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:51,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:51,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... [2019-11-25 08:57:51,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:51,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:51,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:51,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:51,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:51,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:52,009 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:52,009 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:57:52,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:52 BoogieIcfgContainer [2019-11-25 08:57:52,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:52,011 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:52,011 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:52,014 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:52,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:52,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:51" (1/3) ... [2019-11-25 08:57:52,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7edf40ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:52, skipping insertion in model container [2019-11-25 08:57:52,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:52,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:51" (2/3) ... [2019-11-25 08:57:52,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7edf40ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:52, skipping insertion in model container [2019-11-25 08:57:52,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:52,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:52" (3/3) ... [2019-11-25 08:57:52,020 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-25 08:57:52,068 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:52,068 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:52,069 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:52,069 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:52,069 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:52,069 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:52,069 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:52,071 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:52,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-25 08:57:52,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:52,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:52,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,112 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:57:52,112 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:52,112 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:52,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-25 08:57:52,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:52,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:52,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,114 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:57:52,114 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:52,122 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 6#L19-2true [2019-11-25 08:57:52,122 INFO L796 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~i~0 > 0); 8#L19true assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 6#L19-2true [2019-11-25 08:57:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,129 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:57:52,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234172226] [2019-11-25 08:57:52,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-25 08:57:52,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953729843] [2019-11-25 08:57:52,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,247 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-25 08:57:52,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997398716] [2019-11-25 08:57:52,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,358 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:52,359 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:52,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:52,359 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:52,360 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:52,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:52,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:52,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:52,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-25 08:57:52,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:52,361 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:52,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,497 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:52,497 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:52,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:52,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:52,512 INFO L440 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/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:52,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:52,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:52,526 INFO L440 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/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:52,532 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:52,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:52,556 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:52,558 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:52,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:52,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:52,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:52,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:52,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:52,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:52,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:52,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-25 08:57:52,559 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:52,559 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:52,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,640 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:52,644 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,668 INFO L120 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 [2019-11-25 08:57:52,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:52,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:52,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:52,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:52,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:52,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:52,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:52,698 INFO L120 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 [2019-11-25 08:57:52,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:52,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:52,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:52,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:52,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:52,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:52,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:52,704 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:52,709 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:52,709 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:52,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:52,715 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:52,715 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:52,715 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:52,725 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:57:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:52,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:52,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:52,781 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:52,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:52,799 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 [2019-11-25 08:57:52,801 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-25 08:57:52,841 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-11-25 08:57:52,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:57:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-25 08:57:52,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-25 08:57:52,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:52,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-25 08:57:52,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:52,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-25 08:57:52,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:52,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-25 08:57:52,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:52,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-25 08:57:52,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-25 08:57:52,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:57:52,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-25 08:57:52,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:52,864 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:57:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-25 08:57:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-25 08:57:52,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:57:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-25 08:57:52,888 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:57:52,888 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:57:52,888 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:52,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-25 08:57:52,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:52,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:52,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:52,890 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:57:52,890 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:52,891 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 64#L19-2 assume !!(main_~i~0 > 0); 69#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 65#L19-2 [2019-11-25 08:57:52,891 INFO L796 eck$LassoCheckResult]: Loop: 65#L19-2 assume !!(main_~i~0 > 0); 66#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 65#L19-2 [2019-11-25 08:57:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,891 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-25 08:57:52,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485142655] [2019-11-25 08:57:52,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-25 08:57:52,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100009432] [2019-11-25 08:57:52,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:52,934 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-25 08:57:52,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:52,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717206361] [2019-11-25 08:57:52,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:52,965 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:52,986 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:52,987 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:52,987 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:52,987 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:52,987 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:52,987 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:52,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:52,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:52,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-25 08:57:52,988 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:52,988 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:52,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:52,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,076 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:53,076 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:53,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:53,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:53,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:53,092 INFO L440 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/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:53,101 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:53,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:53,118 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:53,120 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:53,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:53,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:53,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:53,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:53,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:53,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:53,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-25 08:57:53,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:53,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:53,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,200 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:53,200 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:53,207 INFO L120 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 [2019-11-25 08:57:53,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:53,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:53,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:53,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:53,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:53,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:53,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,217 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:53,220 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:57:53,220 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:53,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:53,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:53,237 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:53,237 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-25 08:57:53,240 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:57:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,282 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,283 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 [2019-11-25 08:57:53,283 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-25 08:57:53,292 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-11-25 08:57:53,292 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 [2019-11-25 08:57:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-25 08:57:53,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-25 08:57:53,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:57:53,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-25 08:57:53,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-25 08:57:53,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:53,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-25 08:57:53,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-25 08:57:53,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-25 08:57:53,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-25 08:57:53,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:53,296 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-25 08:57:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-25 08:57:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-25 08:57:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-25 08:57:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-25 08:57:53,298 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-25 08:57:53,298 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-25 08:57:53,298 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:57:53,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-25 08:57:53,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:57:53,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:53,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:53,299 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-11-25 08:57:53,299 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:53,299 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 117#L19-2 assume !!(main_~i~0 > 0); 122#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 123#L19-2 assume !!(main_~i~0 > 0); 124#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 118#L19-2 [2019-11-25 08:57:53,300 INFO L796 eck$LassoCheckResult]: Loop: 118#L19-2 assume !!(main_~i~0 > 0); 119#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 118#L19-2 [2019-11-25 08:57:53,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,300 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-11-25 08:57:53,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691827135] [2019-11-25 08:57:53,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691827135] [2019-11-25 08:57:53,361 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350094361] [2019-11-25 08:57:53,361 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:57:53,394 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:57:53,394 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:57:53,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:57:53,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-11-25 08:57:53,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141621717] [2019-11-25 08:57:53,423 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:57:53,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-25 08:57:53,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309238733] [2019-11-25 08:57:53,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,428 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,451 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:53,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:53,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:53,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:53,452 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:53,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:53,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:53,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-25 08:57:53,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:53,452 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:53,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:53,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:53,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:53,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:53,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:57:53,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:53,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:53,559 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/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 [2019-11-25 08:57:53,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:53,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:53,575 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:53,577 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:53,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:53,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:53,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:53,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:53,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:53,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:53,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-25 08:57:53,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:53,579 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:53,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:53,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:53,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:53,672 INFO L120 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 [2019-11-25 08:57:53,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:53,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:53,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:53,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:53,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:53,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:53,696 INFO L120 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 [2019-11-25 08:57:53,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:53,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:53,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:53,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:53,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:53,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:53,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:53,711 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:57:53,712 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:53,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:53,721 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:53,721 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:53,721 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-25 08:57:53,723 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:53,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,767 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,768 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 [2019-11-25 08:57:53,768 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-25 08:57:53,785 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-11-25 08:57:53,786 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 [2019-11-25 08:57:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-25 08:57:53,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:57:53,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,787 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:57:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,818 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,820 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 [2019-11-25 08:57:53,820 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-25 08:57:53,835 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-11-25 08:57:53,836 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 [2019-11-25 08:57:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-25 08:57:53,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:57:53,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,837 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:57:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:53,871 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:53,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:53,872 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 [2019-11-25 08:57:53,872 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-25 08:57:53,882 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-11-25 08:57:53,883 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 [2019-11-25 08:57:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:53,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-25 08:57:53,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:57:53,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-25 08:57:53,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-25 08:57:53,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:53,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-11-25 08:57:53,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:57:53,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-11-25 08:57:53,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:57:53,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-25 08:57:53,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-11-25 08:57:53,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:53,887 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-11-25 08:57:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-11-25 08:57:53,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-11-25 08:57:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:57:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-25 08:57:53,888 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-25 08:57:53,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:53,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:57:53,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:57:53,895 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 7 states. [2019-11-25 08:57:53,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:53,949 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2019-11-25 08:57:53,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:53,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-11-25 08:57:53,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-25 08:57:53,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 13 transitions. [2019-11-25 08:57:53,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:57:53,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:57:53,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-25 08:57:53,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:57:53,952 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:57:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-25 08:57:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 6. [2019-11-25 08:57:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-25 08:57:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-25 08:57:53,954 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-25 08:57:53,954 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-25 08:57:53,954 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:57:53,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-11-25 08:57:53,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:57:53,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:53,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:53,955 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:57:53,955 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-25 08:57:53,955 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 296#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-11-25 08:57:53,955 INFO L796 eck$LassoCheckResult]: Loop: 300#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 297#L19-2 assume !!(main_~i~0 > 0); 298#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 299#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-11-25 08:57:53,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:57:53,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754587200] [2019-11-25 08:57:53,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2019-11-25 08:57:53,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847533241] [2019-11-25 08:57:53,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:53,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:53,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:53,977 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-11-25 08:57:53,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:53,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300834327] [2019-11-25 08:57:53,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:54,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:54,036 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:54,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:54,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:54,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:54,037 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:57:54,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:54,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:54,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-25 08:57:54,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:54,038 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:54,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,143 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:54,143 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:57:54,162 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:57:54,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:57:54,225 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:57:54,227 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:54,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:54,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:54,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:54,227 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:54,227 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:54,227 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:54,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-25 08:57:54,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:54,228 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:54,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:54,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:54,333 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,347 INFO L120 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 [2019-11-25 08:57:54,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:54,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:54,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:54,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:54,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:54,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:54,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:54,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:54,357 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:57:54,357 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742a7251-2e10-4004-af6d-059e7c70c284/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:54,363 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:54,363 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:57:54,363 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:54,363 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-25 08:57:54,374 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:54,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:54,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:54,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:54,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:54,447 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-25 08:57:54,447 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-11-25 08:57:54,468 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 6 states. [2019-11-25 08:57:54,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:57:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:57:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-25 08:57:54,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-25 08:57:54,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:54,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-25 08:57:54,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:54,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-25 08:57:54,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:54,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-25 08:57:54,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:54,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:57:54,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:57:54,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:54,472 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:57:54,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:54,472 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:54,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:57:54,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:54 BoogieIcfgContainer [2019-11-25 08:57:54,479 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:54,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:54,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:54,479 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:54,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:52" (3/4) ... [2019-11-25 08:57:54,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:54,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:54,485 INFO L168 Benchmark]: Toolchain (without parser) took 2979.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:54,485 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:54,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:54,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:54,486 INFO L168 Benchmark]: Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:54,487 INFO L168 Benchmark]: RCFGBuilder took 219.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:54,488 INFO L168 Benchmark]: BuchiAutomizer took 2467.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:54,488 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:54,490 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 219.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2467.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function j and consists of 4 locations. One deterministic module has affine ranking function j and consists of 3 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 31 SDtfs, 32 SDslu, 10 SDs, 0 SdLazy, 40 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax181 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...