./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30601811463d073f869bef96a3132d41c5e6f5ce ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:19,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:19,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:19,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:19,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:19,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:19,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:19,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:19,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:19,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:19,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:19,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:19,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:19,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:19,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:19,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:19,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:19,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:19,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:19,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:19,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:19,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:19,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:19,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:19,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:19,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:19,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:19,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:19,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:19,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:19,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:19,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:19,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:19,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:19,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:19,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:19,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:19,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:19,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:19,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:19,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:19,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:56:19,914 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:19,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:19,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:19,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:19,925 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:19,926 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:19,926 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:19,926 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:19,926 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:19,926 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:19,926 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:19,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:19,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:19,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:19,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:19,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:19,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:19,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:19,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:19,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:19,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:19,929 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:19,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:19,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:19,930 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:19,931 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:19,932 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/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30601811463d073f869bef96a3132d41c5e6f5ce [2019-10-22 08:56:19,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:19,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:19,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:19,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:19,981 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:19,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-10-22 08:56:20,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/data/51804cff9/4af988c5e9fd4e2b8c6dba329c3b5bf4/FLAGd4845e4c7 [2019-10-22 08:56:20,369 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:20,370 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-10-22 08:56:20,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/data/51804cff9/4af988c5e9fd4e2b8c6dba329c3b5bf4/FLAGd4845e4c7 [2019-10-22 08:56:20,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/bin/uautomizer/data/51804cff9/4af988c5e9fd4e2b8c6dba329c3b5bf4 [2019-10-22 08:56:20,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:20,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:20,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:20,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:20,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:20,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:20" (1/1) ... [2019-10-22 08:56:20,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f82a224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:20, skipping insertion in model container [2019-10-22 08:56:20,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:20" (1/1) ... [2019-10-22 08:56:20,794 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:20,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:20,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:20,916 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:20,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:20,999 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:21,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21 WrapperNode [2019-10-22 08:56:21,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:21,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:21,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:21,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:21,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:21,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:21,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:21,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:21,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... [2019-10-22 08:56:21,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:21,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:21,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:21,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:21,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/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 [2019-10-22 08:56:21,118 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-22 08:56:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-22 08:56:21,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:21,253 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:21,253 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:56:21,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:21 BoogieIcfgContainer [2019-10-22 08:56:21,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:21,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:21,257 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:21,260 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:21,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:21,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:20" (1/3) ... [2019-10-22 08:56:21,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55ae190e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:21, skipping insertion in model container [2019-10-22 08:56:21,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:21,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:21" (2/3) ... [2019-10-22 08:56:21,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55ae190e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:21, skipping insertion in model container [2019-10-22 08:56:21,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:21,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:21" (3/3) ... [2019-10-22 08:56:21,267 INFO L371 chiAutomizerObserver]: Analyzing ICFG afterrec-2.c [2019-10-22 08:56:21,320 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:21,320 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:21,320 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:21,321 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:21,321 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:21,321 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:21,321 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:21,321 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:21,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:21,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 08:56:21,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:21,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:21,372 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:56:21,372 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:21,372 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:21,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:21,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 08:56:21,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:21,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:21,376 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:56:21,376 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:21,383 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res; 6#L11true call f(2);< 8#fENTRYtrue [2019-10-22 08:56:21,386 INFO L793 eck$LassoCheckResult]: Loop: 8#fENTRYtrue ~n := #in~n; 7#L4true assume !(~n < 3);#t~post0 := ~n;~n := #t~post0 - 1;havoc #t~post0; 13#L6true call f(~n);< 8#fENTRYtrue [2019-10-22 08:56:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-10-22 08:56:21,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:21,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390138790] [2019-10-22 08:56:21,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:21,488 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,490 INFO L82 PathProgramCache]: Analyzing trace with hash 29930, now seen corresponding path program 1 times [2019-10-22 08:56:21,490 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:21,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140585302] [2019-10-22 08:56:21,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:21,510 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:21,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,512 INFO L82 PathProgramCache]: Analyzing trace with hash 38370947, now seen corresponding path program 1 times [2019-10-22 08:56:21,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:21,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151141438] [2019-10-22 08:56:21,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:21,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151141438] [2019-10-22 08:56:21,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:21,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:21,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304673280] [2019-10-22 08:56:21,672 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:21,673 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:21,673 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:21,673 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:21,673 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:56:21,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:21,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:21,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:21,674 INFO L131 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2019-10-22 08:56:21,674 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:21,674 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:21,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,748 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:21,748 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/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 [2019-10-22 08:56:21,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:56:21,754 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b425c43-d709-4c03-aefc-b49dc90b0f2c/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 [2019-10-22 08:56:21,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:56:21,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:56:21,773 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:56:21,774 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:21,775 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:21,775 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:21,775 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:21,775 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:56:21,775 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:21,775 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:21,775 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:21,775 INFO L131 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2019-10-22 08:56:21,776 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:21,776 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:21,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:21,812 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:21,817 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:56:21,819 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 [2019-10-22 08:56:21,820 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:21,821 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:21,821 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:21,821 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:21,822 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:21,824 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:21,824 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:21,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:21,826 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 [2019-10-22 08:56:21,827 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:21,827 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:21,828 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:21,828 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:21,828 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:21,829 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:21,829 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:21,835 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:56:21,841 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:56:21,842 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:56:21,844 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:56:21,844 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:56:21,844 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:56:21,845 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2019-10-22 08:56:21,848 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:56:21,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:56:21,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:56:21,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:21,946 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 [2019-10-22 08:56:21,947 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2019-10-22 08:56:22,056 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 36 states and 38 transitions. Complement of second has 19 states. [2019-10-22 08:56:22,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-10-22 08:56:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 08:56:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2019-10-22 08:56:22,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 3 letters. [2019-10-22 08:56:22,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:22,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2019-10-22 08:56:22,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:22,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2019-10-22 08:56:22,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:22,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 38 transitions. [2019-10-22 08:56:22,070 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:22,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-10-22 08:56:22,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:56:22,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:56:22,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:56:22,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:22,077 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,077 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:22,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:22,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:22,081 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-10-22 08:56:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:22,085 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-10-22 08:56:22,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:56:22,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-10-22 08:56:22,086 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:22,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:22,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:56:22,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:56:22,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:56:22,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:22,087 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,087 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,087 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:22,087 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:22,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:22,088 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:22,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:56:22,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:22 BoogieIcfgContainer [2019-10-22 08:56:22,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:22,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:22,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:22,095 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:22,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:21" (3/4) ... [2019-10-22 08:56:22,098 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:22,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:22,100 INFO L168 Benchmark]: Toolchain (without parser) took 1320.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -106.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,101 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:22,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 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. [2019-10-22 08:56:22,102 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 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. [2019-10-22 08:56:22,103 INFO L168 Benchmark]: RCFGBuilder took 199.94 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,103 INFO L168 Benchmark]: BuchiAutomizer took 837.84 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: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:22,103 INFO L168 Benchmark]: Witness Printer took 3.78 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. [2019-10-22 08:56:22,106 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.24 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 18.83 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 199.94 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 837.84 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: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.78 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. * 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 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 6 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 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 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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...