./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61682d2c31dd7110d61be8ccb8e4bbb3882eca20 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 10:53:57,320 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 10:53:57,321 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 10:53:57,327 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 10:53:57,327 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 10:53:57,328 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 10:53:57,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 10:53:57,329 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 10:53:57,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 10:53:57,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 10:53:57,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 10:53:57,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 10:53:57,331 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 10:53:57,332 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 10:53:57,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 10:53:57,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 10:53:57,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 10:53:57,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 10:53:57,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 10:53:57,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 10:53:57,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 10:53:57,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 10:53:57,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 10:53:57,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 10:53:57,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 10:53:57,339 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 10:53:57,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 10:53:57,340 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 10:53:57,340 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 10:53:57,341 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 10:53:57,341 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 10:53:57,342 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 10:53:57,342 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 10:53:57,342 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 10:53:57,342 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 10:53:57,343 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 10:53:57,343 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 10:53:57,352 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 10:53:57,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 10:53:57,353 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 10:53:57,354 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 10:53:57,354 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 10:53:57,354 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 10:53:57,354 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 10:53:57,354 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 10:53:57,354 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 10:53:57,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 10:53:57,355 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 10:53:57,356 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 10:53:57,357 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 10:53:57,357 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 10:53:57,357 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 10:53:57,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 10:53:57,357 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 10:53:57,357 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 10:53:57,358 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 10:53:57,358 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 10:53:57,358 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 10:53:57,359 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 10:53:57,359 INFO L133 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_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61682d2c31dd7110d61be8ccb8e4bbb3882eca20 [2018-12-08 10:53:57,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 10:53:57,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 10:53:57,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 10:53:57,395 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 10:53:57,395 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 10:53:57,395 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-12-08 10:53:57,435 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/data/cdb6fceee/694407cff5de4f81bf1e1e21072fed7d/FLAGb70bcb546 [2018-12-08 10:53:57,779 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 10:53:57,779 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/sv-benchmarks/c/array-memsafety/cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-12-08 10:53:57,786 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/data/cdb6fceee/694407cff5de4f81bf1e1e21072fed7d/FLAGb70bcb546 [2018-12-08 10:53:57,794 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/uautomizer/data/cdb6fceee/694407cff5de4f81bf1e1e21072fed7d [2018-12-08 10:53:57,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 10:53:57,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 10:53:57,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 10:53:57,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 10:53:57,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 10:53:57,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:53:57" (1/1) ... [2018-12-08 10:53:57,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e809d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:57, skipping insertion in model container [2018-12-08 10:53:57,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:53:57" (1/1) ... [2018-12-08 10:53:57,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 10:53:57,824 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 10:53:57,967 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:53:57,973 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 10:53:58,043 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 10:53:58,062 INFO L195 MainTranslator]: Completed translation [2018-12-08 10:53:58,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58 WrapperNode [2018-12-08 10:53:58,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 10:53:58,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 10:53:58,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 10:53:58,063 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 10:53:58,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 10:53:58,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 10:53:58,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 10:53:58,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 10:53:58,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... [2018-12-08 10:53:58,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 10:53:58,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 10:53:58,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 10:53:58,102 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 10:53:58,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629e47ef-2a9c-4f9d-9813-b0b9ebb188dc/bin-2019/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 [2018-12-08 10:53:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 10:53:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 10:53:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 10:53:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 10:53:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 10:53:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 10:53:58,263 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 10:53:58,263 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 10:53:58,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:53:58 BoogieIcfgContainer [2018-12-08 10:53:58,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 10:53:58,263 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 10:53:58,264 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 10:53:58,266 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 10:53:58,266 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:53:58,266 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 10:53:57" (1/3) ... [2018-12-08 10:53:58,267 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fbe51fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 10:53:58, skipping insertion in model container [2018-12-08 10:53:58,267 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:53:58,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:53:58" (2/3) ... [2018-12-08 10:53:58,267 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fbe51fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 10:53:58, skipping insertion in model container [2018-12-08 10:53:58,267 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 10:53:58,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:53:58" (3/3) ... [2018-12-08 10:53:58,268 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-12-08 10:53:58,301 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 10:53:58,302 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 10:53:58,302 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 10:53:58,302 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 10:53:58,302 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 10:53:58,302 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 10:53:58,302 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 10:53:58,302 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 10:53:58,303 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 10:53:58,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-08 10:53:58,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-08 10:53:58,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:53:58,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:53:58,329 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-08 10:53:58,329 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-08 10:53:58,329 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 10:53:58,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-08 10:53:58,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-08 10:53:58,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:53:58,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:53:58,331 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-08 10:53:58,331 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-08 10:53:58,336 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 4#L558true assume !(main_~length1~0 < 1); 6#L558-2true assume !(main_~length2~0 < 1); 19#L561-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem4, cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~mem6, cstrpbrk_#t~short7, cstrpbrk_#t~mem9, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 15#L545-4true [2018-12-08 10:53:58,336 INFO L796 eck$LassoCheckResult]: Loop: 15#L545-4true call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 8#L545-1true assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 9#L548-5true assume !true; 12#L548-6true call cstrpbrk_#t~mem9 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 18#L550true assume !(cstrpbrk_#t~mem9 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem9; 13#L545-3true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset; 15#L545-4true [2018-12-08 10:53:58,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:58,340 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2018-12-08 10:53:58,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:58,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:58,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:58,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:58,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2018-12-08 10:53:58,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:58,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:58,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:58,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:53:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:53:58,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 10:53:58,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 10:53:58,455 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 10:53:58,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 10:53:58,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 10:53:58,465 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-12-08 10:53:58,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:53:58,469 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2018-12-08 10:53:58,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 10:53:58,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-12-08 10:53:58,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-08 10:53:58,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2018-12-08 10:53:58,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-08 10:53:58,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-12-08 10:53:58,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-12-08 10:53:58,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:53:58,474 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-08 10:53:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-12-08 10:53:58,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-08 10:53:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-08 10:53:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-12-08 10:53:58,491 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-08 10:53:58,491 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-08 10:53:58,491 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 10:53:58,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-12-08 10:53:58,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-08 10:53:58,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:53:58,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:53:58,492 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-08 10:53:58,492 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:53:58,492 INFO L794 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 52#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 44#L558 assume !(main_~length1~0 < 1); 45#L558-2 assume !(main_~length2~0 < 1); 48#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem4, cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~mem6, cstrpbrk_#t~short7, cstrpbrk_#t~mem9, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 55#L545-4 [2018-12-08 10:53:58,492 INFO L796 eck$LassoCheckResult]: Loop: 55#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 51#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 50#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 46#L548-1 assume cstrpbrk_#t~short7;call cstrpbrk_#t~mem6 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := cstrpbrk_#t~mem6 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 47#L548-3 assume !cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5; 49#L548-6 call cstrpbrk_#t~mem9 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 53#L550 assume !(cstrpbrk_#t~mem9 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem9; 54#L545-3 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset; 55#L545-4 [2018-12-08 10:53:58,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:58,492 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2018-12-08 10:53:58,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:58,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:58,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:58,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:58,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2018-12-08 10:53:58,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:58,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,513 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 10:53:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:58,528 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2018-12-08 10:53:58,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:58,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:58,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:58,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:58,665 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-08 10:53:58,813 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2018-12-08 10:53:58,955 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-12-08 10:53:59,022 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:53:59,023 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:53:59,023 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:53:59,023 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:53:59,023 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:53:59,023 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:53:59,024 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:53:59,024 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:53:59,024 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrpbrk-alloca_true-valid-memsafety_true-termination.i_Iteration2_Lasso [2018-12-08 10:53:59,024 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:53:59,024 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:53:59,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:53:59,654 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:53:59,656 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:53:59,658 INFO L122 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 [2018-12-08 10:53:59,659 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,659 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,659 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,659 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,659 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,660 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,660 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,662 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,662 INFO L122 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 [2018-12-08 10:53:59,662 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,662 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,663 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,663 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,663 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,663 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,663 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,664 INFO L122 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 [2018-12-08 10:53:59,664 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,664 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,664 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,664 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,664 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,664 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,664 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,665 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,665 INFO L122 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 [2018-12-08 10:53:59,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,665 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,666 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,666 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,666 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,666 INFO L122 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 [2018-12-08 10:53:59,667 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,667 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,667 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,667 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,667 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,667 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,667 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,668 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,668 INFO L122 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 [2018-12-08 10:53:59,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,668 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,668 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,669 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:53:59,670 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:53:59,671 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,671 INFO L122 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 [2018-12-08 10:53:59,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,672 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,672 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,672 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,672 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,672 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,672 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,673 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,673 INFO L122 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 [2018-12-08 10:53:59,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,673 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,674 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,674 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,674 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,674 INFO L122 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 [2018-12-08 10:53:59,675 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,675 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,675 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,675 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,675 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,675 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,675 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,676 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,676 INFO L122 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 [2018-12-08 10:53:59,676 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,676 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,676 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,678 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:53:59,678 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:53:59,680 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,681 INFO L122 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 [2018-12-08 10:53:59,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,681 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,681 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,681 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,682 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,682 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,682 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,683 INFO L122 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 [2018-12-08 10:53:59,683 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,683 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,683 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,683 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,683 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,684 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,684 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,684 INFO L122 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 [2018-12-08 10:53:59,684 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,684 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:53:59,684 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,685 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,685 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,685 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:53:59,685 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:53:59,685 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:53:59,685 INFO L122 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 [2018-12-08 10:53:59,686 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:53:59,686 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:53:59,686 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:53:59,686 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:53:59,688 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:53:59,688 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:53:59,711 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:53:59,726 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 10:53:59,726 INFO L444 ModelExtractionUtils]: 22 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-08 10:53:59,728 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:53:59,729 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-08 10:53:59,730 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:53:59,730 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1) = -1*ULTIMATE.start_cstrpbrk_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 Supporting invariants [] [2018-12-08 10:53:59,751 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2018-12-08 10:53:59,756 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 10:53:59,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:53:59,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:53:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:53:59,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:53:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:53:59,823 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 [2018-12-08 10:53:59,823 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-08 10:53:59,865 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2018-12-08 10:53:59,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:53:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 10:53:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2018-12-08 10:53:59,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2018-12-08 10:53:59,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:53:59,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2018-12-08 10:53:59,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:53:59,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2018-12-08 10:53:59,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:53:59,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2018-12-08 10:53:59,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:53:59,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2018-12-08 10:53:59,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-08 10:53:59,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-08 10:53:59,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2018-12-08 10:53:59,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 10:53:59,870 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-08 10:53:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2018-12-08 10:53:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-08 10:53:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-08 10:53:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-12-08 10:53:59,871 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-08 10:53:59,871 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-08 10:53:59,871 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 10:53:59,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-12-08 10:53:59,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:53:59,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:53:59,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:53:59,871 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:53:59,872 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 10:53:59,872 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 190#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 178#L558 assume !(main_~length1~0 < 1); 179#L558-2 assume !(main_~length2~0 < 1); 184#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem4, cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~mem6, cstrpbrk_#t~short7, cstrpbrk_#t~mem9, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 195#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 188#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 185#L548-5 [2018-12-08 10:53:59,872 INFO L796 eck$LassoCheckResult]: Loop: 185#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 180#L548-1 assume cstrpbrk_#t~short7;call cstrpbrk_#t~mem6 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := cstrpbrk_#t~mem6 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 181#L548-3 assume !!cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5;cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post8.base, 1 + cstrpbrk_#t~post8.offset;havoc cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset; 185#L548-5 [2018-12-08 10:53:59,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2018-12-08 10:53:59,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:59,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:59,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:59,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:59,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:59,886 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2018-12-08 10:53:59,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:59,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:59,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:59,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:59,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:53:59,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2018-12-08 10:53:59,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:53:59,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:53:59,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:53:59,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:53:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:53:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:00,199 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2018-12-08 10:54:00,266 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:54:00,266 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:54:00,266 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:54:00,267 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:54:00,267 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:54:00,267 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:54:00,267 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:54:00,267 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:54:00,267 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrpbrk-alloca_true-valid-memsafety_true-termination.i_Iteration3_Lasso [2018-12-08 10:54:00,267 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:54:00,267 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:54:00,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,457 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2018-12-08 10:54:00,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:00,870 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:54:00,870 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:54:00,871 INFO L122 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 [2018-12-08 10:54:00,871 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,871 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:00,871 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,872 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:00,872 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:00,872 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:00,873 INFO L122 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 [2018-12-08 10:54:00,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,873 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:00,873 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,873 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,873 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:00,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:00,874 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:00,874 INFO L122 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 [2018-12-08 10:54:00,874 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:00,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,875 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,875 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:00,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:00,876 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:00,876 INFO L122 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 [2018-12-08 10:54:00,876 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,876 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:00,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,877 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:00,877 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:00,877 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:00,878 INFO L122 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 [2018-12-08 10:54:00,878 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,879 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:54:00,879 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:54:00,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:00,881 INFO L122 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 [2018-12-08 10:54:00,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:00,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:00,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:00,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:00,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:54:00,884 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:54:00,905 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:54:00,918 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 10:54:00,918 INFO L444 ModelExtractionUtils]: 39 out of 43 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 10:54:00,918 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:54:00,919 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-08 10:54:00,919 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:54:00,919 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2) = -1*ULTIMATE.start_cstrpbrk_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 Supporting invariants [] [2018-12-08 10:54:00,954 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2018-12-08 10:54:00,956 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 10:54:00,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:00,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:00,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:54:01,006 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-08 10:54:01,006 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-08 10:54:01,033 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2018-12-08 10:54:01,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:54:01,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 10:54:01,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-08 10:54:01,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2018-12-08 10:54:01,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:01,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2018-12-08 10:54:01,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:01,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2018-12-08 10:54:01,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:01,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2018-12-08 10:54:01,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:54:01,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2018-12-08 10:54:01,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-08 10:54:01,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-08 10:54:01,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2018-12-08 10:54:01,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 10:54:01,036 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2018-12-08 10:54:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2018-12-08 10:54:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2018-12-08 10:54:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-08 10:54:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2018-12-08 10:54:01,038 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-08 10:54:01,038 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-08 10:54:01,039 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 10:54:01,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2018-12-08 10:54:01,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:54:01,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:54:01,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:54:01,040 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:54:01,040 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 10:54:01,040 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 371#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 358#L558 assume !(main_~length1~0 < 1); 359#L558-2 assume !(main_~length2~0 < 1); 364#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem4, cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~mem6, cstrpbrk_#t~short7, cstrpbrk_#t~mem9, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 376#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 377#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 379#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 380#L548-1 assume !cstrpbrk_#t~short7; 366#L548-3 assume !cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5; 367#L548-6 call cstrpbrk_#t~mem9 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 372#L550 assume !(cstrpbrk_#t~mem9 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem9; 373#L545-3 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset; 374#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 368#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 365#L548-5 [2018-12-08 10:54:01,040 INFO L796 eck$LassoCheckResult]: Loop: 365#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 360#L548-1 assume cstrpbrk_#t~short7;call cstrpbrk_#t~mem6 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := cstrpbrk_#t~mem6 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 361#L548-3 assume !!cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5;cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post8.base, 1 + cstrpbrk_#t~post8.offset;havoc cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset; 365#L548-5 [2018-12-08 10:54:01,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:01,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2018-12-08 10:54:01,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:54:01,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:54:01,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:54:01,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:54:01,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 10:54:01,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 10:54:01,077 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-08 10:54:01,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:01,077 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2018-12-08 10:54:01,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:54:01,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:54:01,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 10:54:01,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 10:54:01,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 10:54:01,175 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2018-12-08 10:54:01,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 10:54:01,217 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2018-12-08 10:54:01,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 10:54:01,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2018-12-08 10:54:01,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 10:54:01,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2018-12-08 10:54:01,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-08 10:54:01,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-08 10:54:01,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-12-08 10:54:01,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 10:54:01,218 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-08 10:54:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-12-08 10:54:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-12-08 10:54:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 10:54:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2018-12-08 10:54:01,219 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-12-08 10:54:01,219 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-12-08 10:54:01,219 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 10:54:01,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2018-12-08 10:54:01,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 10:54:01,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 10:54:01,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 10:54:01,220 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 10:54:01,220 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 10:54:01,220 INFO L794 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 444#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 430#L558 assume !(main_~length1~0 < 1); 431#L558-2 assume !(main_~length2~0 < 1); 436#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem4, cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~mem6, cstrpbrk_#t~short7, cstrpbrk_#t~mem9, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 450#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 451#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 442#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 443#L548-1 assume cstrpbrk_#t~short7;call cstrpbrk_#t~mem6 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := cstrpbrk_#t~mem6 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 452#L548-3 assume !cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5; 445#L548-6 call cstrpbrk_#t~mem9 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 446#L550 assume !(cstrpbrk_#t~mem9 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem9; 447#L545-3 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset; 448#L545-4 call cstrpbrk_#t~mem3 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 440#L545-1 assume !!(0 != cstrpbrk_#t~mem3);havoc cstrpbrk_#t~mem3;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem4 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem4;havoc cstrpbrk_#t~mem4; 437#L548-5 [2018-12-08 10:54:01,220 INFO L796 eck$LassoCheckResult]: Loop: 437#L548-5 call cstrpbrk_#t~mem5 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := 0 != cstrpbrk_#t~mem5; 432#L548-1 assume cstrpbrk_#t~short7;call cstrpbrk_#t~mem6 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short7 := cstrpbrk_#t~mem6 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 433#L548-3 assume !!cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem6;havoc cstrpbrk_#t~short7;havoc cstrpbrk_#t~mem5;cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post8.base, 1 + cstrpbrk_#t~post8.offset;havoc cstrpbrk_#t~post8.base, cstrpbrk_#t~post8.offset; 437#L548-5 [2018-12-08 10:54:01,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2018-12-08 10:54:01,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:54:01,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:54:01,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,221 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 10:54:01,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:01,236 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2018-12-08 10:54:01,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:54:01,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:54:01,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,237 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 10:54:01,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:01,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2018-12-08 10:54:01,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 10:54:01,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 10:54:01,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,241 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 10:54:01,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 10:54:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 10:54:01,778 WARN L180 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 134 [2018-12-08 10:54:02,329 WARN L180 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2018-12-08 10:54:02,331 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 10:54:02,331 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 10:54:02,331 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 10:54:02,331 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 10:54:02,331 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 10:54:02,331 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 10:54:02,331 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 10:54:02,331 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 10:54:02,331 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrpbrk-alloca_true-valid-memsafety_true-termination.i_Iteration5_Lasso [2018-12-08 10:54:02,331 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 10:54:02,332 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 10:54:02,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,471 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-12-08 10:54:02,820 WARN L180 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2018-12-08 10:54:02,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:02,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 10:54:03,294 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 113 [2018-12-08 10:54:05,216 WARN L180 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 137 DAG size of output: 108 [2018-12-08 10:54:05,613 WARN L180 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2018-12-08 10:54:05,629 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 10:54:05,629 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 10:54:05,629 INFO L122 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 [2018-12-08 10:54:05,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,630 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,630 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,630 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,630 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,630 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,630 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,631 INFO L122 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 [2018-12-08 10:54:05,631 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,631 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,631 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,631 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,631 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,631 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,631 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,632 INFO L122 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 [2018-12-08 10:54:05,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,632 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,632 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,632 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,633 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,633 INFO L122 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 [2018-12-08 10:54:05,633 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,633 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,634 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,634 INFO L122 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 [2018-12-08 10:54:05,634 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,634 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,634 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,634 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,634 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,634 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,634 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,635 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,635 INFO L122 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 [2018-12-08 10:54:05,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,635 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,635 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,635 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,636 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:54:05,636 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:54:05,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,637 INFO L122 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 [2018-12-08 10:54:05,637 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,637 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 10:54:05,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,637 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 10:54:05,637 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 10:54:05,637 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,638 INFO L122 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 [2018-12-08 10:54:05,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 10:54:05,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,638 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,639 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 10:54:05,639 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:54:05,641 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,641 INFO L122 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 [2018-12-08 10:54:05,641 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,641 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-08 10:54:05,641 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 10:54:05,641 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,643 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-08 10:54:05,643 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 10:54:05,646 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 10:54:05,646 INFO L122 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 [2018-12-08 10:54:05,647 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 10:54:05,647 INFO L205 nArgumentSynthesizer]: 8 stem disjuncts [2018-12-08 10:54:05,647 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-12-08 10:54:05,647 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 10:54:05,723 INFO L402 nArgumentSynthesizer]: We have 180 Motzkin's Theorem applications. [2018-12-08 10:54:05,723 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-12-08 10:54:07,488 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 10:54:08,633 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2018-12-08 10:54:08,633 INFO L444 ModelExtractionUtils]: 339 out of 352 variables were initially zero. Simplification set additionally 10 variables to zero. [2018-12-08 10:54:08,634 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 10:54:08,636 INFO L440 nArgumentSynthesizer]: Removed 12 redundant supporting invariants from a total of 12. [2018-12-08 10:54:08,636 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 10:54:08,636 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrpbrk_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrpbrk_~s~0.offset Supporting invariants [] [2018-12-08 10:54:08,714 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2018-12-08 10:54:08,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 10:54:08,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:54:08,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-08 10:54:08,758 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-08 10:54:08,787 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2018-12-08 10:54:08,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:54:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 10:54:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-08 10:54:08,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-08 10:54:08,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:08,788 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 10:54:08,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:54:08,833 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-08 10:54:08,833 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-08 10:54:08,853 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2018-12-08 10:54:08,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:54:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 10:54:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-08 10:54:08,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-08 10:54:08,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:08,854 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 10:54:08,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 10:54:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 10:54:08,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 10:54:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 10:54:08,897 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-08 10:54:08,897 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-08 10:54:08,918 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2018-12-08 10:54:08,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 10:54:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 10:54:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-12-08 10:54:08,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-08 10:54:08,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:08,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2018-12-08 10:54:08,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:08,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2018-12-08 10:54:08,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 10:54:08,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2018-12-08 10:54:08,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 10:54:08,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 10:54:08,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 10:54:08,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 10:54:08,921 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-08 10:54:08,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 10:54:08,921 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 10:54:08,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 10:54:08,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 10:54:08 BoogieIcfgContainer [2018-12-08 10:54:08,925 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 10:54:08,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 10:54:08,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 10:54:08,925 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 10:54:08,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:53:58" (3/4) ... [2018-12-08 10:54:08,928 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 10:54:08,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 10:54:08,928 INFO L168 Benchmark]: Toolchain (without parser) took 11131.61 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 424.7 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 305.6 MB. Max. memory is 11.5 GB. [2018-12-08 10:54:08,929 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:54:08,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-08 10:54:08,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 10:54:08,929 INFO L168 Benchmark]: Boogie Preprocessor took 14.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:54:08,930 INFO L168 Benchmark]: RCFGBuilder took 160.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-08 10:54:08,930 INFO L168 Benchmark]: BuchiAutomizer took 10661.28 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 309.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 321.0 MB. Max. memory is 11.5 GB. [2018-12-08 10:54:08,930 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 10:54:08,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 160.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 10661.28 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 309.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 321.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 10.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 91 SDslu, 72 SDs, 0 SdLazy, 105 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital365 mio100 ax100 hnf99 lsp92 ukn71 mio100 lsp68 div122 bol100 ite100 ukn100 eq172 hnf83 smp79 dnf1116 smp24 tf100 neg97 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 2989ms VariablesStem: 28 VariablesLoop: 16 DisjunctsStem: 8 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 180 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...