./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c9656c5ef8dceb7982043d8db455c38d2f23147 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:11:20,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:11:20,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:11:20,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:11:20,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:11:20,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:11:20,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:11:20,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:11:20,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:11:20,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:11:20,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:11:20,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:11:20,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:11:20,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:11:20,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:11:20,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:11:20,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:11:20,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:11:20,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:11:20,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:11:20,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:11:20,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:11:20,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:11:20,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:11:20,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:11:20,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:11:20,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:11:20,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:11:20,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:11:20,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:11:20,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:11:20,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:11:20,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:11:20,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:11:20,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:11:20,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:11:20,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:11:20,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:11:20,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:11:20,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:11:20,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:11:20,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:11:20,970 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:11:20,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:11:20,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:11:20,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:11:20,972 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:11:20,972 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:11:20,972 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:11:20,973 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:11:20,973 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:11:20,973 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:11:20,973 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:11:20,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:11:20,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:11:20,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:11:20,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:11:20,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:11:20,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:11:20,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:11:20,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:11:20,975 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:11:20,976 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:11:20,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:11:20,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:11:20,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:11:20,977 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:11:20,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:11:20,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:11:20,977 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:11:20,978 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:11:20,979 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9656c5ef8dceb7982043d8db455c38d2f23147 [2019-11-15 20:11:21,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:11:21,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:11:21,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:11:21,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:11:21,017 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:11:21,018 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2019-11-15 20:11:21,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/data/84c7b7d2e/d4702fa577bc44ceb192b7d7ef443196/FLAG0e2b2cafa [2019-11-15 20:11:21,479 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:11:21,480 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2019-11-15 20:11:21,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/data/84c7b7d2e/d4702fa577bc44ceb192b7d7ef443196/FLAG0e2b2cafa [2019-11-15 20:11:21,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/data/84c7b7d2e/d4702fa577bc44ceb192b7d7ef443196 [2019-11-15 20:11:21,500 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:11:21,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:11:21,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:11:21,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:11:21,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:11:21,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428f38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21, skipping insertion in model container [2019-11-15 20:11:21,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,529 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:11:21,545 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:11:21,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:11:21,727 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:11:21,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:11:21,813 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:11:21,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21 WrapperNode [2019-11-15 20:11:21,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:11:21,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:11:21,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:11:21,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:11:21,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:11:21,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:11:21,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:11:21,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:11:21,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... [2019-11-15 20:11:21,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:11:21,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:11:21,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:11:21,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:11:21,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2019-11-15 20:11:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2019-11-15 20:11:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:11:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:11:22,028 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:11:22,028 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 20:11:22,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:11:22 BoogieIcfgContainer [2019-11-15 20:11:22,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:11:22,030 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:11:22,030 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:11:22,033 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:11:22,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:11:22,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:11:21" (1/3) ... [2019-11-15 20:11:22,035 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@104f0571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:11:22, skipping insertion in model container [2019-11-15 20:11:22,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:11:22,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:11:21" (2/3) ... [2019-11-15 20:11:22,035 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@104f0571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:11:22, skipping insertion in model container [2019-11-15 20:11:22,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:11:22,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:11:22" (3/3) ... [2019-11-15 20:11:22,037 INFO L371 chiAutomizerObserver]: Analyzing ICFG TerminatorRec02.c [2019-11-15 20:11:22,076 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:11:22,077 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:11:22,077 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:11:22,077 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:11:22,077 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:11:22,078 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:11:22,078 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:11:22,078 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:11:22,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 20:11:22,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 20:11:22,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:11:22,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:11:22,116 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-15 20:11:22,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 20:11:22,116 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:11:22,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 20:11:22,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 20:11:22,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:11:22,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:11:22,118 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-15 20:11:22,118 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 20:11:22,123 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~x~0, main_~y~1, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L27true assume !(main_~x~0 < 0);main_~y~1 := main_#t~nondet2;havoc main_#t~nondet2; 8#L30true assume !(main_~y~1 < 0);main_~z~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L33true call main_#t~ret4 := fact(main_~x~0);< 9#factENTRYtrue [2019-11-15 20:11:22,124 INFO L793 eck$LassoCheckResult]: Loop: 9#factENTRYtrue ~x := #in~x; 4#L18true assume ~x > 1; 7#L19true call #t~ret0 := fact(~x - 1);< 9#factENTRYtrue [2019-11-15 20:11:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:11:22,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2019-11-15 20:11:22,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:11:22,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046656493] [2019-11-15 20:11:22,133 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:11:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,209 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:11:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:11:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash 29909, now seen corresponding path program 1 times [2019-11-15 20:11:22,210 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:11:22,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267461869] [2019-11-15 20:11:22,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:11:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,221 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:11:22,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:11:22,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1559568360, now seen corresponding path program 1 times [2019-11-15 20:11:22,223 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:11:22,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525239075] [2019-11-15 20:11:22,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:11:22,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:11:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:11:22,241 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:11:22,348 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:11:22,349 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:11:22,349 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:11:22,349 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:11:22,350 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:11:22,350 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:22,350 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:11:22,350 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:11:22,350 INFO L131 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2019-11-15 20:11:22,350 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:11:22,351 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:11:22,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,474 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:11:22,475 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:22,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:11:22,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:11:22,493 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:11:22,493 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~y~0=0} Honda state: {fact_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:22,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:11:22,507 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95d01c4f-3a3b-4dbb-a2b2-3d41b0d352e0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:22,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:11:22,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:11:22,554 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:11:22,556 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:11:22,556 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:11:22,556 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:11:22,556 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:11:22,556 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:11:22,557 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:11:22,557 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:11:22,557 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:11:22,557 INFO L131 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2019-11-15 20:11:22,557 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:11:22,557 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:11:22,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:11:22,636 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:11:22,640 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:11:22,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:11:22,643 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:11:22,643 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:11:22,644 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:11:22,644 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:11:22,644 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:11:22,647 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:11:22,648 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:11:22,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:11:22,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:11:22,655 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:11:22,656 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:11:22,656 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:11:22,656 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:11:22,656 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:11:22,658 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:11:22,658 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:11:22,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:11:22,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:11:22,675 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:11:22,675 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:11:22,676 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:11:22,676 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:11:22,676 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:11:22,677 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:11:22,677 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:11:22,684 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:11:22,696 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:11:22,696 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:11:22,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:11:22,700 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:11:22,700 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:11:22,700 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~x) = 1*fact_#in~x Supporting invariants [] [2019-11-15 20:11:22,704 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:11:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:11:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:11:22,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 20:11:22,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:11:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:11:22,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 20:11:22,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:11:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:11:22,831 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-15 20:11:22,832 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-11-15 20:11:22,922 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 12 states. [2019-11-15 20:11:22,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 20:11:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 20:11:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2019-11-15 20:11:22,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-15 20:11:22,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:11:22,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-15 20:11:22,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:11:22,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-15 20:11:22,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:11:22,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2019-11-15 20:11:22,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:11:22,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-15 20:11:22,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 20:11:22,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 20:11:22,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 20:11:22,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:11:22,937 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:11:22,938 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:11:22,938 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:11:22,938 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:11:22,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:11:22,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:11:22,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 20:11:22,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:11:22 BoogieIcfgContainer [2019-11-15 20:11:22,944 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:11:22,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:11:22,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:11:22,945 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:11:22,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:11:22" (3/4) ... [2019-11-15 20:11:22,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:11:22,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:11:22,950 INFO L168 Benchmark]: Toolchain (without parser) took 1448.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -87.0 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:11:22,950 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:11:22,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:11:22,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:11:22,952 INFO L168 Benchmark]: Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:11:22,952 INFO L168 Benchmark]: RCFGBuilder took 175.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:11:22,953 INFO L168 Benchmark]: BuchiAutomizer took 914.30 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:11:22,953 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:11:22,956 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 914.30 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: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 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(x) 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: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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...