./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_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_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/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 4a8b6acf5c3e1a62f919c5785e272fd1a6b568e6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:25,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:25,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:25,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:25,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:25,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:25,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:25,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:25,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:25,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:25,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:25,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:25,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:25,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:25,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:25,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:25,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:25,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:25,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:25,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:25,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:25,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:25,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:25,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:25,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:25,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:25,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:25,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:25,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:25,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:25,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:25,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:25,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:25,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:25,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:25,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:25,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:25,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:25,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:25,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:25,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:25,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:56:25,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:25,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:25,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:25,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:25,359 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:25,359 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:25,359 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:25,359 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:25,359 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:25,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:25,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:25,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:25,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:25,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:25,362 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:25,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:25,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:25,362 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:25,363 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:25,363 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_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/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 -> 4a8b6acf5c3e1a62f919c5785e272fd1a6b568e6 [2019-10-22 08:56:25,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:25,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:25,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:25,412 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:25,413 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:25,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2019-10-22 08:56:25,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/data/24c5b13e2/54146c89ad464e7a9b5043f30ad934d8/FLAG8dd0082c4 [2019-10-22 08:56:25,908 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:25,908 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2019-10-22 08:56:25,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/data/24c5b13e2/54146c89ad464e7a9b5043f30ad934d8/FLAG8dd0082c4 [2019-10-22 08:56:25,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/data/24c5b13e2/54146c89ad464e7a9b5043f30ad934d8 [2019-10-22 08:56:25,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:25,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:25,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:25,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:25,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:25,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:25" (1/1) ... [2019-10-22 08:56:25,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639d099c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:25, skipping insertion in model container [2019-10-22 08:56:25,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:25" (1/1) ... [2019-10-22 08:56:25,943 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:25,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:26,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:26,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:26,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:26,390 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:26,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26 WrapperNode [2019-10-22 08:56:26,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:26,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:26,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:26,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:26,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:26,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:26,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:26,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:26,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... [2019-10-22 08:56:26,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:26,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:26,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:26,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:26,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05e4653-e0ec-4a17-ace5-ceeb545afa4f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:56:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:26,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:26,722 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:26,723 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:56:26,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:26 BoogieIcfgContainer [2019-10-22 08:56:26,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:26,724 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:26,724 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:26,728 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:26,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:26,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:25" (1/3) ... [2019-10-22 08:56:26,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336f14b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:26, skipping insertion in model container [2019-10-22 08:56:26,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:26,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:26" (2/3) ... [2019-10-22 08:56:26,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336f14b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:26, skipping insertion in model container [2019-10-22 08:56:26,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:26,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:26" (3/3) ... [2019-10-22 08:56:26,732 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen_diffterm_alloca.i [2019-10-22 08:56:26,776 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:26,777 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:26,777 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:26,777 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:26,777 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:26,777 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:26,777 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:26,777 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:26,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:26,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:56:26,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:26,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:26,831 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:56:26,831 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:26,831 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:26,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:26,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:56:26,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:26,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:26,834 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:56:26,834 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:26,842 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 12#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-10-22 08:56:26,842 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(49 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2019-10-22 08:56:26,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:26,848 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-10-22 08:56:26,855 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:26,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315635530] [2019-10-22 08:56:26,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:26,995 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-10-22 08:56:26,996 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:26,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460631420] [2019-10-22 08:56:26,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:27,008 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-10-22 08:56:27,010 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:27,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112109655] [2019-10-22 08:56:27,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:27,011 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:27,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:27,054 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:27,239 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-10-22 08:56:27,308 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:27,309 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:27,310 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:27,310 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:27,310 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:56:27,310 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:27,310 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:27,310 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:27,310 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen_diffterm_alloca.i_Iteration1_Lasso [2019-10-22 08:56:27,311 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:27,311 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:27,333 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 08:56:27,341 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 08:56:27,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,351 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 08:56:27,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:27,820 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:27,825 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:56:27,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,829 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,831 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:27,831 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,832 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,832 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,834 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:27,834 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:27,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,847 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,847 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,847 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,847 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,849 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:27,850 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:27,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,856 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,856 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:27,857 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,857 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,857 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,857 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:27,863 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:27,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,868 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,868 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,869 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,869 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,872 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:27,873 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:27,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,877 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,883 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:27,883 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,884 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,884 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,884 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:27,884 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:27,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,887 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,888 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 08:56:27,888 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,888 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,892 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 08:56:27,892 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:27,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,928 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,928 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,929 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,929 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,930 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:27,931 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:27,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:27,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:56:27,937 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:27,938 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:27,938 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:27,938 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:27,950 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:27,950 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:28,010 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:56:28,049 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:56:28,062 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 08:56:28,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:56:28,065 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:56:28,066 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:56:28,066 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 Supporting invariants [] [2019-10-22 08:56:28,080 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 08:56:28,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:56:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:28,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:56:28,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:28,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:56:28,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:28,164 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 08:56:28,165 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 08:56:28,204 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2019-10-22 08:56:28,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:56:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:56:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-10-22 08:56:28,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:56:28,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:28,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:56:28,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:28,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-10-22 08:56:28,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:28,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-10-22 08:56:28,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:28,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-10-22 08:56:28,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:56:28,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:56:28,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:56:28,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:28,218 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:28,218 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:28,218 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:28,218 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:28,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:28,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:28,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:56:28,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:28 BoogieIcfgContainer [2019-10-22 08:56:28,224 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:28,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:28,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:28,225 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:28,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:26" (3/4) ... [2019-10-22 08:56:28,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:28,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:28,230 INFO L168 Benchmark]: Toolchain (without parser) took 2301.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.5 MB in the beginning and 920.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 157.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:28,230 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:28,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:28,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.87 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:28,232 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 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 08:56:28,232 INFO L168 Benchmark]: RCFGBuilder took 274.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:28,233 INFO L168 Benchmark]: BuchiAutomizer took 1500.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.0 MB in the end (delta: 167.5 MB). Peak memory consumption was 167.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:28,233 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 1.2 GB. Free memory is still 920.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:28,236 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 461.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.87 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.64 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 274.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1500.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.0 MB in the end (delta: 167.5 MB). Peak memory consumption was 167.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.12 ms. Allocated memory is still 1.2 GB. Free memory is still 920.0 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 -1 * p + unknown-#length-unknown[p] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital114 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp45 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf109 smp100 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 6 VariablesLoop: 4 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...