./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 03de162ccadd41d16dfce723d629801bfe048af4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:03:38,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:03:38,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:03:38,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:03:38,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:03:38,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:03:38,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:03:38,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:03:38,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:03:38,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:03:38,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:03:38,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:03:38,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:03:38,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:03:38,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:03:38,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:03:38,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:03:38,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:03:38,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:03:38,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:03:38,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:03:38,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:03:38,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:03:38,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:03:38,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:03:38,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:03:38,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:03:38,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:03:38,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:03:38,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:03:38,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:03:38,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:03:38,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:03:38,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:03:38,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:03:38,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:03:38,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:03:38,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:03:38,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:03:38,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:03:38,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:03:38,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:03:38,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:03:38,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:03:38,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:03:38,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:03:38,789 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:03:38,789 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:03:38,790 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:03:38,790 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:03:38,790 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:03:38,790 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:03:38,790 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:03:38,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:03:38,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:03:38,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:03:38,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:03:38,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:03:38,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:03:38,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:03:38,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:03:38,792 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:03:38,792 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:03:38,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:03:38,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:03:38,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:03:38,793 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:03:38,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:03:38,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:03:38,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:03:38,794 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:03:38,794 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:03:38,795 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_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 -> 03de162ccadd41d16dfce723d629801bfe048af4 [2019-12-07 18:03:38,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:03:38,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:03:38,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:03:38,914 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:03:38,915 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:03:38,915 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2019-12-07 18:03:38,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/data/f89b05eff/fa196d3eac104785986e94dd7f50755d/FLAGc88e244a8 [2019-12-07 18:03:39,313 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:03:39,313 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2019-12-07 18:03:39,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/data/f89b05eff/fa196d3eac104785986e94dd7f50755d/FLAGc88e244a8 [2019-12-07 18:03:39,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/data/f89b05eff/fa196d3eac104785986e94dd7f50755d [2019-12-07 18:03:39,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:03:39,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:03:39,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:03:39,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:03:39,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:03:39,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3272d5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39, skipping insertion in model container [2019-12-07 18:03:39,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:03:39,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:03:39,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:03:39,870 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:03:39,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:03:39,927 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:03:39,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39 WrapperNode [2019-12-07 18:03:39,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:03:39,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:03:39,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:03:39,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:03:39,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:03:39,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:03:39,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:03:39,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:03:39,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... [2019-12-07 18:03:39,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:03:39,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:03:39,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:03:39,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:03:39,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:03:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:03:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:03:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:03:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:03:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2019-12-07 18:03:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2019-12-07 18:03:40,121 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:03:40,121 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:03:40,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:03:40 BoogieIcfgContainer [2019-12-07 18:03:40,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:03:40,123 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:03:40,123 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:03:40,125 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:03:40,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:03:40,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:03:39" (1/3) ... [2019-12-07 18:03:40,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1786c320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:03:40, skipping insertion in model container [2019-12-07 18:03:40,126 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:03:40,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:03:39" (2/3) ... [2019-12-07 18:03:40,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1786c320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:03:40, skipping insertion in model container [2019-12-07 18:03:40,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:03:40,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:03:40" (3/3) ... [2019-12-07 18:03:40,128 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc.i [2019-12-07 18:03:40,156 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:03:40,156 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:03:40,156 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:03:40,156 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:03:40,157 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:03:40,157 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:03:40,157 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:03:40,157 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:03:40,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 18:03:40,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:03:40,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:03:40,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:03:40,187 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:03:40,187 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:03:40,187 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:03:40,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 18:03:40,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:03:40,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:03:40,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:03:40,189 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:03:40,189 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:03:40,195 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~ret5.base, main_#t~ret5.offset, main_#t~ret6;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet1, build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet1;havoc build_nondet_String_#t~nondet1; 12#L11true assume !(build_nondet_String_~length~0 < 1); 9#L11-2true call build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 3#L16true main_#t~ret5.base, main_#t~ret5.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset; 8#L30true call main_#t~ret6 := rec_cstrlen(main_#t~ret5.base, main_#t~ret5.offset);< 4#rec_cstrlenENTRYtrue [2019-12-07 18:03:40,195 INFO L796 eck$LassoCheckResult]: Loop: 4#rec_cstrlenENTRYtrue ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem3 := read~int(~s.base, ~s.offset, 1); 14#L22true assume !(0 == #t~mem3);havoc #t~mem3; 18#L25true call #t~ret4 := rec_cstrlen(~s.base, 1 + ~s.offset);< 4#rec_cstrlenENTRYtrue [2019-12-07 18:03:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:03:40,199 INFO L82 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2019-12-07 18:03:40,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:03:40,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119424401] [2019-12-07 18:03:40,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:03:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,305 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:03:40,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:03:40,306 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2019-12-07 18:03:40,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:03:40,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514011908] [2019-12-07 18:03:40,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:03:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,315 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:03:40,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:03:40,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2019-12-07 18:03:40,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:03:40,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5688286] [2019-12-07 18:03:40,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:03:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:03:40,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:03:40,659 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:03:40,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:03:40,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:03:40,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:03:40,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:03:40,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:03:40,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:03:40,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc.i_Iteration1_Lasso [2019-12-07 18:03:40,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:03:40,661 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:03:40,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:03:40,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:03:40,887 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,892 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 [2019-12-07 18:03:40,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,901 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 [2019-12-07 18:03:40,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,908 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 [2019-12-07 18:03:40,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,915 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 [2019-12-07 18:03:40,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,922 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 [2019-12-07 18:03:40,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,926 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,929 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 [2019-12-07 18:03:40,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:03:40,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:03:40,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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 [2019-12-07 18:03:40,939 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 [2019-12-07 18:03:40,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,947 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 [2019-12-07 18:03:40,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,955 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 [2019-12-07 18:03:40,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,962 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 [2019-12-07 18:03:40,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,969 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 [2019-12-07 18:03:40,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,976 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 [2019-12-07 18:03:40,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:03:40,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,983 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 [2019-12-07 18:03:40,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:03:40,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,985 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 18:03:40,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,986 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 18:03:40,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:03:40,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:40,991 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 [2019-12-07 18:03:40,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:40,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:40,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:40,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:40,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:03:40,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:03:40,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:41,003 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 [2019-12-07 18:03:41,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:41,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:41,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:41,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:41,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:03:41,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:03:41,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:41,013 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 [2019-12-07 18:03:41,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:41,015 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 18:03:41,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:41,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:41,017 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-12-07 18:03:41,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:03:41,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:41,026 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 [2019-12-07 18:03:41,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:03:41,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:03:41,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:03:41,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:03:41,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:03:41,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:03:41,037 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:03:41,053 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 18:03:41,053 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a872e3e-3bb7-42f6-b0ce-3a308b51ceba/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:03:41,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:03:41,062 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:03:41,062 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:03:41,063 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_cstrlen_#in~s.base)_1, rec_cstrlen_#in~s.offset) = 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 - 1*rec_cstrlen_#in~s.offset Supporting invariants [] [2019-12-07 18:03:41,068 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:03:41,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:03:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:03:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:03:41,108 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:03:41,110 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:03:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:03:41,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:03:41,131 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:03:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:03:41,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:03:41,163 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-12-07 18:03:41,217 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 31 states and 36 transitions. Complement of second has 8 states. [2019-12-07 18:03:41,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:03:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:03:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-12-07 18:03:41,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 18:03:41,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:03:41,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:03:41,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:03:41,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 18:03:41,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:03:41,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2019-12-07 18:03:41,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:03:41,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-12-07 18:03:41,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:03:41,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:03:41,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:03:41,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:03:41,229 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:03:41,229 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:03:41,229 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:03:41,229 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:03:41,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:03:41,229 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:03:41,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:03:41,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:03:41 BoogieIcfgContainer [2019-12-07 18:03:41,233 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:03:41,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:03:41,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:03:41,234 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:03:41,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:03:40" (3/4) ... [2019-12-07 18:03:41,236 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:03:41,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:03:41,238 INFO L168 Benchmark]: Toolchain (without parser) took 1503.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 943.6 MB in the beginning and 857.1 MB in the end (delta: 86.5 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:03:41,238 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:03:41,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:03:41,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:03:41,240 INFO L168 Benchmark]: Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:03:41,240 INFO L168 Benchmark]: RCFGBuilder took 157.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:03:41,240 INFO L168 Benchmark]: BuchiAutomizer took 1110.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 857.1 MB in the end (delta: 236.0 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:03:41,241 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 1.1 GB. Free memory is still 857.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:03:41,243 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 157.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1110.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 857.1 MB in the end (delta: 236.0 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 ms. Allocated memory is still 1.1 GB. Free memory is still 857.1 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[s] + -1 * s and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital91 mio100 ax100 hnf100 lsp93 ukn65 mio100 lsp48 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...