./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strcmp_short.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strcmp_short.i -s /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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 d1a5f8ddb22d6de2b22e195cabe7484ea1e11662 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:45:22,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:45:22,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:45:22,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:45:22,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:45:22,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:45:22,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:45:23,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:45:23,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:45:23,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:45:23,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:45:23,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:45:23,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:45:23,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:45:23,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:45:23,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:45:23,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:45:23,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:45:23,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:45:23,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:45:23,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:45:23,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:45:23,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:45:23,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:45:23,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:45:23,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:45:23,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:45:23,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:45:23,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:45:23,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:45:23,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:45:23,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:45:23,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:45:23,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:45:23,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:45:23,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:45:23,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:45:23,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:45:23,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:45:23,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:45:23,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:45:23,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:45:23,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:45:23,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:45:23,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:45:23,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:45:23,067 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:45:23,068 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:45:23,068 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:45:23,068 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:45:23,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:45:23,068 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:45:23,068 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:45:23,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:45:23,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:45:23,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:45:23,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:45:23,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:45:23,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:45:23,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:45:23,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:45:23,070 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:45:23,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:45:23,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:45:23,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:45:23,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:45:23,071 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:45:23,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:45:23,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:45:23,071 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:45:23,072 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:45:23,072 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_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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 -> d1a5f8ddb22d6de2b22e195cabe7484ea1e11662 [2019-11-25 08:45:23,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:45:23,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:45:23,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:45:23,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:45:23,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:45:23,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/strcmp_short.i [2019-11-25 08:45:23,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/data/0fd735fb9/f88285c8ffc24f56bdcb6da04490dfc3/FLAG7e2d4bb13 [2019-11-25 08:45:23,790 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:45:23,790 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/sv-benchmarks/c/termination-libowfat/strcmp_short.i [2019-11-25 08:45:23,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/data/0fd735fb9/f88285c8ffc24f56bdcb6da04490dfc3/FLAG7e2d4bb13 [2019-11-25 08:45:24,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/data/0fd735fb9/f88285c8ffc24f56bdcb6da04490dfc3 [2019-11-25 08:45:24,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:45:24,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:45:24,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:24,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:45:24,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:45:24,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a0e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24, skipping insertion in model container [2019-11-25 08:45:24,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:45:24,343 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:45:24,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:24,765 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:45:24,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:24,874 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:45:24,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24 WrapperNode [2019-11-25 08:45:24,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:24,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:24,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:45:24,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:45:24,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:24,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:45:24,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:45:24,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:45:24,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... [2019-11-25 08:45:24,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:45:24,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:45:24,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:45:24,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:45:24,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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 [2019-11-25 08:45:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:45:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:45:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:45:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:45:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:45:25,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:45:25,329 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:45:25,329 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:45:25,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25 BoogieIcfgContainer [2019-11-25 08:45:25,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:45:25,331 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:45:25,331 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:45:25,335 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:45:25,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:45:24" (1/3) ... [2019-11-25 08:45:25,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e522e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:25, skipping insertion in model container [2019-11-25 08:45:25,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:24" (2/3) ... [2019-11-25 08:45:25,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e522e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:45:25, skipping insertion in model container [2019-11-25 08:45:25,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:45:25,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25" (3/3) ... [2019-11-25 08:45:25,339 INFO L371 chiAutomizerObserver]: Analyzing ICFG strcmp_short.i [2019-11-25 08:45:25,385 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:45:25,385 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:45:25,385 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:45:25,386 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:45:25,386 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:45:25,386 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:45:25,386 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:45:25,386 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:45:25,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:45:25,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:45:25,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:25,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:25,430 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:45:25,430 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:45:25,430 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:45:25,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:45:25,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:45:25,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:45:25,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:45:25,432 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:45:25,432 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:45:25,437 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet10;havoc main_#t~nondet10; 9#L513true assume !(main_~in_len~0 < 1);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet12;havoc main_#t~nondet12; 12#L517true assume !(main_~out_len~0 < 1);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1), 1);strcmp_#in~s1.base, strcmp_#in~s1.offset, strcmp_#in~s2.base, strcmp_#in~s2.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcmp_#res;havoc strcmp_#t~post6.base, strcmp_#t~post6.offset, strcmp_#t~post7.base, strcmp_#t~post7.offset, strcmp_#t~mem4, strcmp_#t~mem2, strcmp_#t~mem3, strcmp_#t~short5, strcmp_#t~mem8, strcmp_#t~mem9, strcmp_~s1.base, strcmp_~s1.offset, strcmp_~s2.base, strcmp_~s2.offset;strcmp_~s1.base, strcmp_~s1.offset := strcmp_#in~s1.base, strcmp_#in~s1.offset;strcmp_~s2.base, strcmp_~s2.offset := strcmp_#in~s2.base, strcmp_#in~s2.offset; 10#L507-5true [2019-11-25 08:45:25,438 INFO L796 eck$LassoCheckResult]: Loop: 10#L507-5true call strcmp_#t~mem4 := read~int(strcmp_~s1.base, strcmp_~s1.offset, 1);strcmp_#t~short5 := 0 != strcmp_#t~mem4; 14#L507-1true assume strcmp_#t~short5;call strcmp_#t~mem2 := read~int(strcmp_~s1.base, strcmp_~s1.offset, 1);call strcmp_#t~mem3 := read~int(strcmp_~s2.base, strcmp_~s2.offset, 1);strcmp_#t~short5 := strcmp_#t~mem2 == strcmp_#t~mem3; 6#L507-3true assume !!strcmp_#t~short5;havoc strcmp_#t~mem4;havoc strcmp_#t~short5;havoc strcmp_#t~mem2;havoc strcmp_#t~mem3;strcmp_#t~post6.base, strcmp_#t~post6.offset := strcmp_~s1.base, strcmp_~s1.offset;strcmp_~s1.base, strcmp_~s1.offset := strcmp_#t~post6.base, 1 + strcmp_#t~post6.offset;havoc strcmp_#t~post6.base, strcmp_#t~post6.offset;strcmp_#t~post7.base, strcmp_#t~post7.offset := strcmp_~s2.base, strcmp_~s2.offset;strcmp_~s2.base, strcmp_~s2.offset := strcmp_#t~post7.base, 1 + strcmp_#t~post7.offset;havoc strcmp_#t~post7.base, strcmp_#t~post7.offset; 10#L507-5true [2019-11-25 08:45:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,442 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-25 08:45:25,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389375148] [2019-11-25 08:45:25,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,591 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,592 INFO L82 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 1 times [2019-11-25 08:45:25,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570984939] [2019-11-25 08:45:25,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:25,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907761, now seen corresponding path program 1 times [2019-11-25 08:45:25,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:25,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832878153] [2019-11-25 08:45:25,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:25,713 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:25,871 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-25 08:45:26,317 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-11-25 08:45:26,450 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-25 08:45:26,462 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:45:26,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:45:26,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:45:26,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:45:26,464 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:45:26,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:26,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:45:26,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:45:26,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcmp_short.i_Iteration1_Lasso [2019-11-25 08:45:26,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:45:26,465 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:45:26,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:26,918 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-11-25 08:45:27,124 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-11-25 08:45:27,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:45:27,784 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:45:27,788 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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 [2019-11-25 08:45:27,806 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 [2019-11-25 08:45:27,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:27,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:27,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:27,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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) [2019-11-25 08:45:27,829 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 [2019-11-25 08:45:27,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:45:27,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/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 [2019-11-25 08:45:27,853 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 [2019-11-25 08:45:27,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,859 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:45:27,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:45:27,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,873 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 [2019-11-25 08:45:27,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:27,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:27,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:27,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,889 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 [2019-11-25 08:45:27,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:27,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:27,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:27,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:27,911 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 [2019-11-25 08:45:27,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:27,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:27,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,933 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 [2019-11-25 08:45:27,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:45:27,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:45:27,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:45:27,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:45:27,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:27,950 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 [2019-11-25 08:45:27,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:45:27,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:45:27,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:45:27,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:27,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:45:27,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:45:27,999 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:45:28,108 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-25 08:45:28,108 INFO L444 ModelExtractionUtils]: 26 out of 46 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59a82649-d538-46b6-b21b-a2d3c2f0fe61/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:45:28,117 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:45:28,122 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:45:28,122 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:45:28,123 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1, ULTIMATE.start_strcmp_~s2.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1 - 1*ULTIMATE.start_strcmp_~s2.offset Supporting invariants [] [2019-11-25 08:45:28,193 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2019-11-25 08:45:28,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:45:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:28,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-25 08:45:28,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:45:28,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-25 08:45:28,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:45:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:45:28,370 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-25 08:45:28,371 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2019-11-25 08:45:28,470 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 25 states and 30 transitions. Complement of second has 7 states. [2019-11-25 08:45:28,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:45:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:45:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-25 08:45:28,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-25 08:45:28,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:28,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-25 08:45:28,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:28,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-25 08:45:28,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:45:28,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2019-11-25 08:45:28,479 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:28,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2019-11-25 08:45:28,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:45:28,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:45:28,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:45:28,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:45:28,484 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:28,485 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:28,485 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:45:28,485 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:45:28,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:45:28,485 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:45:28,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:45:28,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:45:28 BoogieIcfgContainer [2019-11-25 08:45:28,491 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:45:28,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:45:28,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:45:28,493 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:45:28,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:25" (3/4) ... [2019-11-25 08:45:28,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:45:28,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:45:28,499 INFO L168 Benchmark]: Toolchain (without parser) took 4203.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.4 MB in the beginning and 979.4 MB in the end (delta: -36.1 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:28,500 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:28,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:28,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.15 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. [2019-11-25 08:45:28,506 INFO L168 Benchmark]: Boogie Preprocessor took 54.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:28,507 INFO L168 Benchmark]: RCFGBuilder took 342.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:28,512 INFO L168 Benchmark]: BuchiAutomizer took 3160.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 119.7 MB). Peak memory consumption was 119.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:28,513 INFO L168 Benchmark]: Witness Printer took 4.66 ms. Allocated memory is still 1.2 GB. Free memory is still 979.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:28,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.15 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 54.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3160.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 119.7 MB). Peak memory consumption was 119.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.66 ms. Allocated memory is still 1.2 GB. Free memory is still 979.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s2 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 8 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital209 mio100 ax100 hnf99 lsp97 ukn85 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 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...