./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 32bit --witnessprinter.graph.data.programhash 5417ea5971c5cfa3624e07fbe8bf33ef4632cb6f ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:17:22,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:17:22,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:17:22,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:17:22,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:17:22,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:17:22,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:17:22,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:17:22,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:17:22,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:17:22,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:17:22,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:17:22,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:17:22,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:17:22,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:17:22,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:17:22,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:17:22,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:17:22,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:17:22,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:17:22,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:17:22,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:17:22,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:17:22,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:17:22,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:17:22,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:17:22,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:17:22,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:17:22,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:17:22,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:17:22,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:17:22,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:17:22,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:17:22,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:17:22,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:17:22,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:17:22,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:17:22,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:17:22,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:17:22,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:17:22,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:17:22,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:17:22,804 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:17:22,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:17:22,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:17:22,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:17:22,805 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:17:22,806 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:17:22,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:17:22,806 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:17:22,807 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:17:22,808 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:17:22,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:17:22,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:17:22,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:17:22,808 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:17:22,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:17:22,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:17:22,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:17:22,809 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:17:22,809 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:17:22,809 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_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5417ea5971c5cfa3624e07fbe8bf33ef4632cb6f [2019-12-07 17:17:22,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:17:22,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:17:22,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:17:22,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:17:22,921 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:17:22,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2019-12-07 17:17:22,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/data/9667ceeca/6a2d38e00fca482cb49014dd9a4a209e/FLAG824586817 [2019-12-07 17:17:23,395 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:17:23,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2019-12-07 17:17:23,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/data/9667ceeca/6a2d38e00fca482cb49014dd9a4a209e/FLAG824586817 [2019-12-07 17:17:23,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/bin/uautomizer/data/9667ceeca/6a2d38e00fca482cb49014dd9a4a209e [2019-12-07 17:17:23,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:17:23,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:17:23,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:17:23,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:17:23,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:17:23,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbcd236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23, skipping insertion in model container [2019-12-07 17:17:23,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:17:23,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:17:23,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:17:23,525 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:17:23,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:17:23,587 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:17:23,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23 WrapperNode [2019-12-07 17:17:23,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:17:23,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:17:23,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:17:23,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:17:23,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:17:23,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:17:23,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:17:23,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:17:23,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... [2019-12-07 17:17:23,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:17:23,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:17:23,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:17:23,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:17:23,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:17:23,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:17:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-12-07 17:17:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-12-07 17:17:23,765 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:17:23,765 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 17:17:23,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:17:23 BoogieIcfgContainer [2019-12-07 17:17:23,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:17:23,767 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:17:23,767 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:17:23,769 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:17:23,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:17:23,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:17:23" (1/3) ... [2019-12-07 17:17:23,770 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34acfe23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:17:23, skipping insertion in model container [2019-12-07 17:17:23,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:17:23,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:17:23" (2/3) ... [2019-12-07 17:17:23,771 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34acfe23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:17:23, skipping insertion in model container [2019-12-07 17:17:23,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:17:23,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:17:23" (3/3) ... [2019-12-07 17:17:23,772 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum_2x3-1.c [2019-12-07 17:17:23,802 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:17:23,802 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:17:23,802 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:17:23,802 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:17:23,803 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:17:23,803 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:17:23,803 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:17:23,803 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:17:23,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 17:17:23,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:17:23,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:17:23,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:17:23,834 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:17:23,834 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:17:23,834 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:17:23,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 17:17:23,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:17:23,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:17:23,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:17:23,835 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:17:23,835 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:17:23,840 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 2;main_~b~0 := 3; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2019-12-07 17:17:23,840 INFO L796 eck$LassoCheckResult]: Loop: 8#sumENTRYtrue ~n := #in~n;~m := #in~m; 6#L4true assume !(~n <= 0); 7#L7true call #t~ret0 := sum(~n - 1, 1 + ~m);< 8#sumENTRYtrue [2019-12-07 17:17:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:17:23,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-12-07 17:17:23,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:17:23,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800819392] [2019-12-07 17:17:23,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:17:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,919 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:17:23,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:17:23,920 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-12-07 17:17:23,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:17:23,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594276009] [2019-12-07 17:17:23,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:17:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:17:23,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:17:23,931 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-12-07 17:17:23,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:17:23,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135748663] [2019-12-07 17:17:23,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:17:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:17:23,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:17:24,011 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:17:24,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:17:24,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:17:24,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:17:24,012 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:17:24,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:17:24,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:17:24,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:17:24,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-1.c_Iteration1_Loop [2019-12-07 17:17:24,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:17:24,012 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:17:24,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,083 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:17:24,083 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:17:24,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:17:24,094 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:17:24,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:17:24,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:17:24,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:17:24,102 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:17:24,106 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:17:24,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:17:24,117 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:17:24,118 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:17:24,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:17:24,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:17:24,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:17:24,118 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:17:24,118 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:17:24,118 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:17:24,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:17:24,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-1.c_Iteration1_Loop [2019-12-07 17:17:24,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:17:24,119 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:17:24,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:17:24,159 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:17:24,163 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,166 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 [2019-12-07 17:17:24,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:17:24,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:17:24,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:17:24,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:17:24,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:17:24,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:17:24,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:17:24,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,176 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 [2019-12-07 17:17:24,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:17:24,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:17:24,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:17:24,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:17:24,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:17:24,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:17:24,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:17:24,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:17:24,183 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 [2019-12-07 17:17:24,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:17:24,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:17:24,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:17:24,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:17:24,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:17:24,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:17:24,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:17:24,187 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:17:24,191 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:17:24,191 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_3c61fa2a-2258-4e5a-9c49-0a14fe1fabaf/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 [2019-12-07 17:17:24,197 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:17:24,197 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:17:24,197 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:17:24,198 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2019-12-07 17:17:24,201 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:17:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:17:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:17:24,229 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:17:24,230 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:17:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:17:24,242 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:17:24,243 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:17:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:17:24,276 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 [2019-12-07 17:17:24,277 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-12-07 17:17:24,335 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 29 states and 34 transitions. Complement of second has 12 states. [2019-12-07 17:17:24,335 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 [2019-12-07 17:17:24,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:17:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-12-07 17:17:24,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 17:17:24,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:17:24,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 17:17:24,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:17:24,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 17:17:24,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:17:24,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-12-07 17:17:24,341 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:17:24,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-12-07 17:17:24,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:17:24,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:17:24,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:17:24,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:17:24,344 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:17:24,344 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:17:24,345 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:17:24,345 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:17:24,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:17:24,345 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:17:24,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:17:24,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:17:24 BoogieIcfgContainer [2019-12-07 17:17:24,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:17:24,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:17:24,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:17:24,349 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:17:24,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:17:23" (3/4) ... [2019-12-07 17:17:24,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:17:24,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:17:24,353 INFO L168 Benchmark]: Toolchain (without parser) took 942.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.4 MB in the beginning and 967.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:17:24,354 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:17:24,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:17:24,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:17:24,355 INFO L168 Benchmark]: Boogie Preprocessor took 12.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:17:24,355 INFO L168 Benchmark]: RCFGBuilder took 140.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:17:24,356 INFO L168 Benchmark]: BuchiAutomizer took 582.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.5 MB in the end (delta: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:17:24,356 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory was 972.5 MB in the beginning and 967.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:17:24,359 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 140.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 582.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.5 MB in the end (delta: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 ms. Allocated memory is still 1.1 GB. Free memory was 972.5 MB in the beginning and 967.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...