./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_25x0_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_25x0_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4039dcb878ce4fadab8efdd435e8ec3d803b5cc8 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:45:13,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:45:13,564 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:45:13,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:45:13,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:45:13,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:45:13,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:45:13,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:45:13,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:45:13,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:45:13,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:45:13,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:45:13,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:45:13,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:45:13,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:45:13,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:45:13,585 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:45:13,587 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:45:13,588 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:45:13,590 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:45:13,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:45:13,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:45:13,593 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:45:13,594 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:45:13,594 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:45:13,595 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:45:13,595 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:45:13,596 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:45:13,597 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:45:13,598 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:45:13,598 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:45:13,599 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:45:13,599 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:45:13,599 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:45:13,600 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:45:13,600 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:45:13,601 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 12:45:13,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:45:13,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:45:13,615 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:45:13,615 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:45:13,615 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:45:13,615 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:45:13,615 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:45:13,615 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:45:13,616 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:45:13,616 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:45:13,616 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:45:13,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:45:13,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:45:13,616 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:45:13,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:45:13,618 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:45:13,618 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:45:13,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:45:13,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:45:13,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:45:13,618 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:45:13,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:45:13,619 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:45:13,619 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:45:13,620 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:45:13,620 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4039dcb878ce4fadab8efdd435e8ec3d803b5cc8 [2018-11-28 12:45:13,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:45:13,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:45:13,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:45:13,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:45:13,662 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:45:13,663 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_25x0_true-unreach-call_true-termination.c [2018-11-28 12:45:13,719 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/data/560be99a2/c38b05def98744dbb09386f0feb34f54/FLAG2c7049b25 [2018-11-28 12:45:14,071 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:45:14,072 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/sv-benchmarks/c/recursive-simple/sum_25x0_true-unreach-call_true-termination.c [2018-11-28 12:45:14,076 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/data/560be99a2/c38b05def98744dbb09386f0feb34f54/FLAG2c7049b25 [2018-11-28 12:45:14,494 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/data/560be99a2/c38b05def98744dbb09386f0feb34f54 [2018-11-28 12:45:14,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:45:14,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:45:14,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:14,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:45:14,504 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:45:14,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279c5be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14, skipping insertion in model container [2018-11-28 12:45:14,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:45:14,527 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:45:14,636 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:14,639 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:45:14,653 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:14,665 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:45:14,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14 WrapperNode [2018-11-28 12:45:14,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:14,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:14,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:45:14,666 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:45:14,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:14,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:45:14,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:45:14,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:45:14,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... [2018-11-28 12:45:14,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:45:14,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:45:14,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:45:14,700 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:45:14,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:45:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:45:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-28 12:45:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-28 12:45:14,879 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:45:14,879 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 12:45:14,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:14 BoogieIcfgContainer [2018-11-28 12:45:14,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:45:14,881 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:45:14,881 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:45:14,884 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:45:14,885 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:45:14,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:45:14" (1/3) ... [2018-11-28 12:45:14,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bb28b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:45:14, skipping insertion in model container [2018-11-28 12:45:14,886 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:45:14,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:14" (2/3) ... [2018-11-28 12:45:14,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bb28b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:45:14, skipping insertion in model container [2018-11-28 12:45:14,887 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:45:14,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:14" (3/3) ... [2018-11-28 12:45:14,888 INFO L375 chiAutomizerObserver]: Analyzing ICFG sum_25x0_true-unreach-call_true-termination.c [2018-11-28 12:45:14,931 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:45:14,931 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:45:14,932 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:45:14,932 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:45:14,932 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:45:14,932 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:45:14,932 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:45:14,932 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:45:14,932 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:45:14,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 12:45:14,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:45:14,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:45:14,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:45:14,970 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:45:14,971 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:45:14,971 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:45:14,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 12:45:14,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:45:14,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:45:14,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:45:14,973 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:45:14,974 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:45:14,982 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 25;main_~b~0 := 0; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2018-11-28 12:45:14,982 INFO L796 eck$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 [2018-11-28 12:45:14,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:14,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2018-11-28 12:45:14,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:45:14,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:45:15,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:45:15,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:15,068 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2018-11-28 12:45:15,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:45:15,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:45:15,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:45:15,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:15,081 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2018-11-28 12:45:15,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:45:15,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:45:15,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:45:15,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:15,182 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:45:15,183 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:45:15,183 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:45:15,183 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:45:15,184 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:45:15,184 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,184 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:45:15,184 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:45:15,184 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_25x0_true-unreach-call_true-termination.c_Iteration1_Loop [2018-11-28 12:45:15,184 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:45:15,185 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:45:15,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,331 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:45:15,332 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,336 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:45:15,336 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:45:15,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:45:15,342 INFO L448 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/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:45:15,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:45:15,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:45:15,363 INFO L448 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/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:45:15,382 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_437017a5-d544-40be-ba98-adba327c0ed2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:45:15,402 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:45:15,423 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:45:15,424 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:45:15,424 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:45:15,424 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:45:15,424 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:45:15,424 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:45:15,425 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:45:15,425 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:45:15,425 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:45:15,425 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_25x0_true-unreach-call_true-termination.c_Iteration1_Loop [2018-11-28 12:45:15,425 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:45:15,425 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:45:15,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:45:15,524 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:45:15,530 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:45:15,532 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:45:15,534 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:45:15,534 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:45:15,534 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:45:15,535 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:45:15,535 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:45:15,537 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:45:15,537 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:45:15,541 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:45:15,541 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:45:15,542 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:45:15,542 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:45:15,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:45:15,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:45:15,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:45:15,543 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:45:15,543 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:45:15,544 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:45:15,545 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:45:15,545 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:45:15,546 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:45:15,546 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:45:15,546 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:45:15,546 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:45:15,547 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:45:15,547 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:45:15,552 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:45:15,556 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:45:15,556 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:45:15,558 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:45:15,559 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:45:15,559 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:45:15,559 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2018-11-28 12:45:15,560 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:45:15,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:45:15,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:45:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:45:15,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:45:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:45:15,669 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 [2018-11-28 12:45:15,670 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2018-11-28 12:45:15,761 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. [2018-11-28 12:45:15,761 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 [2018-11-28 12:45:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:45:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-28 12:45:15,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-28 12:45:15,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:45:15,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 12:45:15,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:45:15,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-28 12:45:15,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:45:15,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2018-11-28 12:45:15,768 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:45:15,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2018-11-28 12:45:15,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:45:15,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:45:15,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:45:15,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:45:15,772 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:45:15,772 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:45:15,772 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:45:15,772 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:45:15,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:45:15,773 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:45:15,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:45:15,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:45:15 BoogieIcfgContainer [2018-11-28 12:45:15,777 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:45:15,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:45:15,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:45:15,778 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:45:15,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:14" (3/4) ... [2018-11-28 12:45:15,781 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:45:15,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:45:15,782 INFO L168 Benchmark]: Toolchain (without parser) took 1284.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -57.7 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:15,783 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:15,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:15,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:15,784 INFO L168 Benchmark]: Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:15,784 INFO L168 Benchmark]: RCFGBuilder took 180.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:15,785 INFO L168 Benchmark]: BuchiAutomizer took 896.80 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: 95.0 MB). Peak memory consumption was 95.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:15,785 INFO L168 Benchmark]: Witness Printer took 3.41 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. [2018-11-28 12:45:15,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.50 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 896.80 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: 95.0 MB). Peak memory consumption was 95.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.41 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 9ms 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...