./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/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 da8216583f63c00b6a47f47712e26111f4383b57 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:18,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:18,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:18,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:18,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:18,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:18,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:18,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:18,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:18,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:18,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:18,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:18,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:18,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:18,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:18,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:18,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:18,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:18,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:18,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:18,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:18,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:18,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:18,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:18,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:18,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:18,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:18,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:18,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:18,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:18,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:18,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:18,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:18,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:18,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:18,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:18,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:18,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:18,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:18,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:18,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:18,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:00:18,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:18,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:18,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:18,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:18,100 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:18,101 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:00:18,101 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:00:18,101 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:00:18,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:00:18,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:00:18,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:00:18,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:00:18,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:18,103 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:00:18,103 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:18,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:00:18,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:18,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:18,106 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:00:18,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:18,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:18,106 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:00:18,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:00:18,107 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/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 -> da8216583f63c00b6a47f47712e26111f4383b57 [2019-10-22 09:00:18,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:18,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:18,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:18,171 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:18,171 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:18,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i [2019-10-22 09:00:18,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/data/aaef15b9e/795b41dc2f334409b61bc538a670597b/FLAGa30b2d698 [2019-10-22 09:00:18,678 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:18,678 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/sv-benchmarks/c/termination-15/cstrcat_mixed_alloca.i [2019-10-22 09:00:18,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/data/aaef15b9e/795b41dc2f334409b61bc538a670597b/FLAGa30b2d698 [2019-10-22 09:00:19,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/data/aaef15b9e/795b41dc2f334409b61bc538a670597b [2019-10-22 09:00:19,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:19,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:19,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:19,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:19,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:19,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433af1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19, skipping insertion in model container [2019-10-22 09:00:19,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,209 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:19,241 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:19,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:19,588 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:19,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:19,691 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:19,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19 WrapperNode [2019-10-22 09:00:19,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:19,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:19,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:19,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:19,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:19,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:19,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:19,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:19,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... [2019-10-22 09:00:19,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:19,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:19,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:19,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:19,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1651728-9457-4820-b2f7-a1684c82deab/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:20,034 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:20,034 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 09:00:20,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:20 BoogieIcfgContainer [2019-10-22 09:00:20,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:20,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:00:20,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:00:20,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:00:20,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:20,048 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:00:19" (1/3) ... [2019-10-22 09:00:20,049 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@650d1283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:20, skipping insertion in model container [2019-10-22 09:00:20,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:20,049 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:19" (2/3) ... [2019-10-22 09:00:20,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@650d1283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:20, skipping insertion in model container [2019-10-22 09:00:20,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:20,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:20" (3/3) ... [2019-10-22 09:00:20,052 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat_mixed_alloca.i [2019-10-22 09:00:20,126 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:00:20,126 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:00:20,126 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:00:20,126 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:20,126 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:20,127 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:00:20,127 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:20,127 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:00:20,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 09:00:20,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-10-22 09:00:20,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:20,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:20,169 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:20,169 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:00:20,170 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:00:20,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 09:00:20,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-10-22 09:00:20,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:20,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:20,171 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:20,171 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:00:20,177 INFO L791 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 10#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2019-10-22 09:00:20,177 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, 1 + cstrcat_#t~post206.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2019-10-22 09:00:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:20,183 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-10-22 09:00:20,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:20,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159543834] [2019-10-22 09:00:20,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,326 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:20,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-10-22 09:00:20,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:20,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895091052] [2019-10-22 09:00:20,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,339 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:20,341 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2019-10-22 09:00:20,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:20,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364354104] [2019-10-22 09:00:20,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:20,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:20,396 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:20,821 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2019-10-22 09:00:20,941 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-10-22 09:00:20,952 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:00:20,953 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:00:20,953 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:00:20,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:00:20,954 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:00:20,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:20,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:00:20,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:00:20,954 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcat_mixed_alloca.i_Iteration1_Lasso [2019-10-22 09:00:20,954 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:00:20,955 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:00:20,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:20,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:20,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:20,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:20,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,258 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-10-22 09:00:21,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:21,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:22,054 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-10-22 09:00:22,095 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:00:22,100 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:00:22,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,103 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,103 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:22,104 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,104 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,104 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,106 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:22,106 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:22,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,112 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,113 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,113 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,113 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,115 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:00:22,119 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:00:22,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,124 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,124 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:22,124 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,124 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,124 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,125 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:22,125 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:22,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,126 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,127 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:22,127 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,127 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,127 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,139 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:22,140 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:22,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,142 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,142 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,142 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,142 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,144 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:00:22,144 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:00:22,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,149 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,149 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,149 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,149 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,155 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:00:22,155 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:00:22,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,182 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,182 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,182 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,182 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,184 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:00:22,184 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:00:22,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:22,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:00:22,194 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:22,195 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:22,195 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:22,195 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:22,199 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:00:22,202 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:00:22,270 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:00:22,313 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 09:00:22,314 INFO L444 ModelExtractionUtils]: 36 out of 40 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:00:22,316 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:00:22,317 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:00:22,317 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:00:22,318 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-10-22 09:00:22,341 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2019-10-22 09:00:22,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 09:00:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:22,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:00:22,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:22,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:00:22,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:22,440 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 [2019-10-22 09:00:22,441 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-10-22 09:00:22,493 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-10-22 09:00:22,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 09:00:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:00:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-10-22 09:00:22,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 09:00:22,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:22,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 09:00:22,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:22,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2019-10-22 09:00:22,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:22,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-10-22 09:00:22,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:00:22,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-10-22 09:00:22,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:00:22,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:00:22,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:00:22,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:22,507 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:22,507 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:22,508 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:22,508 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:00:22,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:00:22,508 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:00:22,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:00:22,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:00:22 BoogieIcfgContainer [2019-10-22 09:00:22,514 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:00:22,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:22,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:22,515 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:22,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:20" (3/4) ... [2019-10-22 09:00:22,518 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:22,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:22,520 INFO L168 Benchmark]: Toolchain (without parser) took 3326.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.1 MB in the beginning and 1.0 GB in the end (delta: -72.6 MB). Peak memory consumption was 70.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:22,520 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:22,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:22,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:22,522 INFO L168 Benchmark]: Boogie Preprocessor took 31.16 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. [2019-10-22 09:00:22,522 INFO L168 Benchmark]: RCFGBuilder took 267.92 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:22,523 INFO L168 Benchmark]: BuchiAutomizer took 2478.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:22,523 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:22,525 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 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 497.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.09 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 31.16 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 267.92 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2478.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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: 19 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital202 mio100 ax100 hnf99 lsp97 ukn80 mio100 lsp46 div100 bol100 ite100 ukn100 eq181 hnf89 smp100 dnf211 smp97 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms 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...