./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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 7f140b11074e684b22c263036fee9fde5b4c087a .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:09:32,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:09:32,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:09:32,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:09:32,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:09:32,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:09:32,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:09:32,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:09:32,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:09:32,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:09:32,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:09:32,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:09:32,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:09:32,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:09:32,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:09:32,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:09:32,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:09:32,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:09:32,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:09:32,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:09:32,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:09:32,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:09:32,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:09:32,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:09:32,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:09:32,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:09:32,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:09:32,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:09:32,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:09:32,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:09:32,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:09:32,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:09:32,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:09:32,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:09:32,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:09:32,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:09:32,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:09:32,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:09:32,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:09:32,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:09:32,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:09:32,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 02:09:32,615 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:09:32,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:09:32,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:09:32,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:09:32,617 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:09:32,617 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:09:32,617 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:09:32,618 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:09:32,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:09:32,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:09:32,618 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:09:32,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:09:32,619 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:09:32,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:09:32,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:09:32,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:09:32,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:09:32,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:09:32,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:09:32,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:09:32,620 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:09:32,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:09:32,621 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:09:32,621 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:09:32,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:09:32,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:09:32,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:09:32,622 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:09:32,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:09:32,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:09:32,623 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:09:32,623 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:09:32,624 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_67027810-8082-4af1-8f45-e1cbe6068b4f/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 -> 7f140b11074e684b22c263036fee9fde5b4c087a [2019-11-20 02:09:32,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:09:32,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:09:32,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:09:32,774 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:09:32,774 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:09:32,775 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c [2019-11-20 02:09:32,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/data/9b44aba64/0d8cdb544e5c46e48be02eb9804e2879/FLAGea1ebc86b [2019-11-20 02:09:33,220 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:09:33,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/sv-benchmarks/c/recursive-simple/sum_15x0-1.c [2019-11-20 02:09:33,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/data/9b44aba64/0d8cdb544e5c46e48be02eb9804e2879/FLAGea1ebc86b [2019-11-20 02:09:33,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/bin/uautomizer/data/9b44aba64/0d8cdb544e5c46e48be02eb9804e2879 [2019-11-20 02:09:33,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:09:33,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:09:33,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:09:33,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:09:33,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:09:33,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d0ded4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33, skipping insertion in model container [2019-11-20 02:09:33,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,259 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:09:33,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:09:33,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:09:33,426 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:09:33,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:09:33,510 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:09:33,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33 WrapperNode [2019-11-20 02:09:33,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:09:33,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:09:33,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:09:33,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:09:33,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:09:33,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:09:33,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:09:33,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:09:33,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... [2019-11-20 02:09:33,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:09:33,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:09:33,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:09:33,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:09:33,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:09:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:09:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-11-20 02:09:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-11-20 02:09:33,741 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:09:33,741 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 02:09:33,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:09:33 BoogieIcfgContainer [2019-11-20 02:09:33,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:09:33,743 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:09:33,743 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:09:33,745 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:09:33,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:09:33,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:09:33" (1/3) ... [2019-11-20 02:09:33,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@439ba8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:09:33, skipping insertion in model container [2019-11-20 02:09:33,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:09:33,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:33" (2/3) ... [2019-11-20 02:09:33,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@439ba8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:09:33, skipping insertion in model container [2019-11-20 02:09:33,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:09:33,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:09:33" (3/3) ... [2019-11-20 02:09:33,750 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum_15x0-1.c [2019-11-20 02:09:33,816 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:09:33,817 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:09:33,817 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:09:33,817 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:09:33,817 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:09:33,817 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:09:33,817 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:09:33,817 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:09:33,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 02:09:33,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:09:33,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:09:33,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:09:33,874 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:09:33,874 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:09:33,875 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:09:33,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 02:09:33,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:09:33,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:09:33,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:09:33,877 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 02:09:33,877 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:09:33,883 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 15;main_~b~0 := 0; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2019-11-20 02:09:33,884 INFO L796 eck$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 [2019-11-20 02:09:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:09:33,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-11-20 02:09:33,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:09:33,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654686740] [2019-11-20 02:09:33,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:09:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,036 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:09:34,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:09:34,037 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-11-20 02:09:34,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:09:34,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717728161] [2019-11-20 02:09:34,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:09:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,064 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:09:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:09:34,067 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-11-20 02:09:34,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:09:34,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884376313] [2019-11-20 02:09:34,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:09:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:09:34,098 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:09:34,214 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:09:34,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:09:34,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:09:34,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:09:34,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:09:34,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:09:34,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:09:34,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:09:34,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-1.c_Iteration1_Loop [2019-11-20 02:09:34,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:09:34,217 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:09:34,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:09:34,333 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:34,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:09:34,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:09:34,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:09:34,349 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_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:34,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:09:34,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:09:34,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:09:34,364 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_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:34,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:09:34,371 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:34,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:09:34,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:09:34,392 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:09:34,396 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:09:34,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:09:34,396 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:09:34,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:09:34,396 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:09:34,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:09:34,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:09:34,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:09:34,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-1.c_Iteration1_Loop [2019-11-20 02:09:34,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:09:34,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:09:34,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:09:34,487 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:09:34,492 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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) [2019-11-20 02:09:34,504 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 [2019-11-20 02:09:34,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:09:34,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:09:34,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:09:34,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:09:34,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:09:34,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:09:34,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:09:34,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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) [2019-11-20 02:09:34,525 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 [2019-11-20 02:09:34,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:09:34,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:09:34,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:09:34,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:09:34,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:09:34,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:09:34,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:09:34,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67027810-8082-4af1-8f45-e1cbe6068b4f/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) [2019-11-20 02:09:34,549 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 [2019-11-20 02:09:34,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:09:34,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:09:34,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:09:34,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:09:34,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:09:34,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:09:34,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:09:34,557 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:09:34,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:09:34,565 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_67027810-8082-4af1-8f45-e1cbe6068b4f/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 [2019-11-20 02:09:34,584 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:09:34,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:09:34,585 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:09:34,585 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2019-11-20 02:09:34,593 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:09:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:09:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:09:34,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:09:34,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:09:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:09:34,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 02:09:34,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:09:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:09:34,713 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 [2019-11-20 02:09:34,714 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-11-20 02:09:34,821 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. [2019-11-20 02:09:34,823 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 [2019-11-20 02:09:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:09:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-11-20 02:09:34,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 02:09:34,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:09:34,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 02:09:34,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:09:34,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 02:09:34,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:09:34,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-11-20 02:09:34,832 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:09:34,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-11-20 02:09:34,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:09:34,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:09:34,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:09:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:09:34,838 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:09:34,838 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:09:34,839 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:09:34,839 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:09:34,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:09:34,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:09:34,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:09:34,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:09:34 BoogieIcfgContainer [2019-11-20 02:09:34,845 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:09:34,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:09:34,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:09:34,846 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:09:34,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:09:33" (3/4) ... [2019-11-20 02:09:34,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:09:34,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:09:34,854 INFO L168 Benchmark]: Toolchain (without parser) took 1606.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -77.1 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:09:34,854 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-11-20 02:09:34,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:09:34,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:09:34,857 INFO L168 Benchmark]: Boogie Preprocessor took 13.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:09:34,859 INFO L168 Benchmark]: RCFGBuilder took 192.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:09:34,860 INFO L168 Benchmark]: BuchiAutomizer took 1103.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:09:34,861 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:09:34,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 264.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 192.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1103.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 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 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 20ms 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...