./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 05dc78db4ae9adf9f9f4e8e18548ea9c0db83e87 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:13:56,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:13:56,670 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:13:56,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:13:56,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:13:56,676 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:13:56,677 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:13:56,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:13:56,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:13:56,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:13:56,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:13:56,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:13:56,680 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:13:56,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:13:56,682 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:13:56,682 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:13:56,683 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:13:56,684 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:13:56,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:13:56,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:13:56,686 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:13:56,687 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:13:56,689 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:13:56,689 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:13:56,689 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:13:56,690 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:13:56,690 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:13:56,691 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:13:56,691 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:13:56,692 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:13:56,692 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:13:56,693 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:13:56,693 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:13:56,693 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:13:56,693 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:13:56,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:13:56,694 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 14:13:56,702 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:13:56,702 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:13:56,703 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:13:56,703 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:13:56,703 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:13:56,703 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:13:56,703 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:13:56,703 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:13:56,704 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:13:56,704 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:13:56,705 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:13:56,706 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:13:56,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:13:56,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:13:56,706 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:13:56,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:13:56,706 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:13:56,706 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:13:56,707 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:13:56,707 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_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 -> 05dc78db4ae9adf9f9f4e8e18548ea9c0db83e87 [2018-11-23 14:13:56,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:13:56,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:13:56,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:13:56,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:13:56,743 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:13:56,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/fibo_2calls_2_true-unreach-call_true-termination.c [2018-11-23 14:13:56,783 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/data/4a2bcebd6/cf92e393c8a04747a22726c62a4db692/FLAG7cae8aca8 [2018-11-23 14:13:57,177 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:13:57,177 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/sv-benchmarks/c/recursive-simple/fibo_2calls_2_true-unreach-call_true-termination.c [2018-11-23 14:13:57,181 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/data/4a2bcebd6/cf92e393c8a04747a22726c62a4db692/FLAG7cae8aca8 [2018-11-23 14:13:57,191 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/data/4a2bcebd6/cf92e393c8a04747a22726c62a4db692 [2018-11-23 14:13:57,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:13:57,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:13:57,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:13:57,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:13:57,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:13:57,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9989bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57, skipping insertion in model container [2018-11-23 14:13:57,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:13:57,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:13:57,321 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:13:57,324 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:13:57,333 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:13:57,342 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:13:57,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57 WrapperNode [2018-11-23 14:13:57,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:13:57,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:13:57,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:13:57,343 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:13:57,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:13:57,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:13:57,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:13:57,361 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:13:57,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... [2018-11-23 14:13:57,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:13:57,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:13:57,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:13:57,372 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:13:57,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 [2018-11-23 14:13:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:13:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2018-11-23 14:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2018-11-23 14:13:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2018-11-23 14:13:57,460 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2018-11-23 14:13:57,578 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:13:57,579 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 14:13:57,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:57 BoogieIcfgContainer [2018-11-23 14:13:57,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:13:57,580 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:13:57,580 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:13:57,584 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:13:57,587 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:13:57,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:13:57" (1/3) ... [2018-11-23 14:13:57,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d0e25d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:13:57, skipping insertion in model container [2018-11-23 14:13:57,588 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:13:57,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:57" (2/3) ... [2018-11-23 14:13:57,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d0e25d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:13:57, skipping insertion in model container [2018-11-23 14:13:57,589 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:13:57,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:57" (3/3) ... [2018-11-23 14:13:57,591 INFO L375 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2_true-unreach-call_true-termination.c [2018-11-23 14:13:57,640 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:13:57,640 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:13:57,640 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:13:57,641 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:13:57,641 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:13:57,641 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:13:57,641 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:13:57,641 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:13:57,641 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:13:57,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2018-11-23 14:13:57,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-23 14:13:57,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:13:57,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:13:57,685 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:13:57,685 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:13:57,685 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:13:57,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2018-11-23 14:13:57,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-23 14:13:57,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:13:57,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:13:57,688 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:13:57,688 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:13:57,694 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret4, main_~x~0, main_~result~0;main_~x~0 := 2; 16#L37true call main_#t~ret4 := fibo1(main_~x~0);< 24#fibo1ENTRYtrue [2018-11-23 14:13:57,695 INFO L796 eck$LassoCheckResult]: Loop: 24#fibo1ENTRYtrue ~n := #in~n; 12#L8true assume !(~n < 1); 4#L10true assume !(1 == ~n); 18#L13true call #t~ret0 := fibo2(~n - 1);< 10#fibo2ENTRYtrue ~n := #in~n; 27#L18true assume !(~n < 1); 25#L20true assume !(1 == ~n); 3#L23true call #t~ret2 := fibo1(~n - 1);< 24#fibo1ENTRYtrue [2018-11-23 14:13:57,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:13:57,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1034, now seen corresponding path program 1 times [2018-11-23 14:13:57,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:13:57,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:13:57,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:13:57,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:13:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:13:57,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:13:57,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1816359656, now seen corresponding path program 1 times [2018-11-23 14:13:57,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:13:57,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:13:57,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:13:57,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:13:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:13:57,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:13:57,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1268294159, now seen corresponding path program 1 times [2018-11-23 14:13:57,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:13:57,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:13:57,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:13:57,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:13:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:13:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:13:57,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:13:57,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 14:13:58,015 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:13:58,016 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:13:58,017 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:13:58,017 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:13:58,017 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 14:13:58,017 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,017 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:13:58,017 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:13:58,017 INFO L131 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2_true-unreach-call_true-termination.c_Iteration1_Loop [2018-11-23 14:13:58,017 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:13:58,017 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:13:58,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,115 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:13:58,115 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 [2018-11-23 14:13:58,127 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,132 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,133 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 [2018-11-23 14:13:58,149 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,149 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,166 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,167 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 [2018-11-23 14:13:58,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,183 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,186 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,186 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/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 [2018-11-23 14:13:58,202 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,202 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,210 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,211 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret2=0} Honda state: {fibo2_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,227 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,228 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,230 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,230 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret3=0} Honda state: {fibo2_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,246 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,251 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,251 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,267 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,267 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,269 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,269 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,285 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,285 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,287 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,287 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret1=0} Honda state: {fibo1_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,303 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,306 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 14:13:58,306 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret0=0} Honda state: {fibo1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 14:13:58,328 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ca430ad-6687-4051-a4d2-7b4a29da04b9/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 14:13:58,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 14:13:58,385 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 14:13:58,386 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:13:58,386 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:13:58,386 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:13:58,386 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:13:58,386 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:13:58,386 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:13:58,386 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:13:58,386 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:13:58,387 INFO L131 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2_true-unreach-call_true-termination.c_Iteration1_Loop [2018-11-23 14:13:58,387 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:13:58,387 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:13:58,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:13:58,455 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:13:58,459 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:13:58,461 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 [2018-11-23 14:13:58,462 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,462 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,463 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,463 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,463 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,465 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,465 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,467 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,467 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 [2018-11-23 14:13:58,468 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,468 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,468 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,468 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,468 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,469 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,469 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,470 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,470 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 [2018-11-23 14:13:58,471 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,471 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,471 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,471 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,472 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,472 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,473 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,473 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 [2018-11-23 14:13:58,474 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,474 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,474 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,474 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,474 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,474 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,475 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,476 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,476 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 [2018-11-23 14:13:58,476 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,476 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,477 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,477 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,477 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,478 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,478 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 14:13:58,479 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,479 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,479 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,479 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,480 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,480 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,481 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,481 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 [2018-11-23 14:13:58,481 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,481 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,482 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,482 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,482 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,483 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,484 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 [2018-11-23 14:13:58,484 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,484 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,484 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,484 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,484 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,485 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,485 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,486 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:13:58,486 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 [2018-11-23 14:13:58,487 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:13:58,487 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:13:58,487 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:13:58,487 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:13:58,487 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:13:58,488 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:13:58,488 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:13:58,493 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:13:58,496 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 14:13:58,496 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:13:58,498 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:13:58,498 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 14:13:58,498 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:13:58,499 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2018-11-23 14:13:58,500 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 14:13:58,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:13:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:13:58,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:13:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:13:58,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:13:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:13:58,644 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2018-11-23 14:13:58,645 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 6 states. [2018-11-23 14:13:58,815 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 6 states. Result 83 states and 115 transitions. Complement of second has 24 states. [2018-11-23 14:13:58,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2018-11-23 14:13:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 14:13:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2018-11-23 14:13:58,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2018-11-23 14:13:58,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:13:58,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 10 letters. Loop has 8 letters. [2018-11-23 14:13:58,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:13:58,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 16 letters. [2018-11-23 14:13:58,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:13:58,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 115 transitions. [2018-11-23 14:13:58,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-23 14:13:58,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 60 states and 81 transitions. [2018-11-23 14:13:58,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2018-11-23 14:13:58,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2018-11-23 14:13:58,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2018-11-23 14:13:58,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:13:58,836 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2018-11-23 14:13:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2018-11-23 14:13:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2018-11-23 14:13:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-23 14:13:58,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2018-11-23 14:13:58,860 INFO L728 BuchiCegarLoop]: Abstraction has 53 states and 71 transitions. [2018-11-23 14:13:58,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:13:58,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:13:58,862 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand 8 states. [2018-11-23 14:13:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:13:58,923 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-23 14:13:58,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 14:13:58,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 17 transitions. [2018-11-23 14:13:58,924 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:13:58,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2018-11-23 14:13:58,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 14:13:58,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 14:13:58,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 14:13:58,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:13:58,925 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:13:58,925 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:13:58,925 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:13:58,925 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:13:58,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:13:58,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:13:58,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 14:13:58,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:13:58 BoogieIcfgContainer [2018-11-23 14:13:58,930 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 14:13:58,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:13:58,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:13:58,930 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:13:58,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:57" (3/4) ... [2018-11-23 14:13:58,933 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:13:58,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:13:58,933 INFO L168 Benchmark]: Toolchain (without parser) took 1740.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 938.2 MB in the end (delta: 21.1 MB). Peak memory consumption was 157.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:13:58,934 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:13:58,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.95 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:13:58,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:13:58,936 INFO L168 Benchmark]: Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:13:58,936 INFO L168 Benchmark]: RCFGBuilder took 207.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:13:58,937 INFO L168 Benchmark]: BuchiAutomizer took 1349.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 183.8 MB). Peak memory consumption was 183.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:13:58,937 INFO L168 Benchmark]: Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 938.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:13:58,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.95 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 18.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 207.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1349.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 183.8 MB). Peak memory consumption was 183.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 938.2 MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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: 14 SDtfs, 40 SDslu, 33 SDs, 0 SdLazy, 122 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...