./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/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 693983fd65e20b5d89b8cfa65a19d47075cafd63 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:26:29,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:26:29,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:26:29,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:26:29,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:26:29,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:26:29,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:26:29,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:26:29,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:26:29,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:26:29,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:26:29,345 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:26:29,346 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:26:29,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:26:29,348 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:26:29,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:26:29,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:26:29,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:26:29,351 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:26:29,352 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:26:29,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:26:29,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:26:29,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:26:29,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:26:29,356 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:26:29,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:26:29,357 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:26:29,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:26:29,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:26:29,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:26:29,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:26:29,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:26:29,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:26:29,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:26:29,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:26:29,362 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:26:29,362 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 03:26:29,372 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:26:29,373 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:26:29,373 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:26:29,374 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:26:29,374 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:26:29,374 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 03:26:29,374 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 03:26:29,374 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 03:26:29,374 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 03:26:29,375 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:26:29,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 03:26:29,376 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 03:26:29,377 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:26:29,377 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:26:29,377 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 03:26:29,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:26:29,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:26:29,377 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 03:26:29,378 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 03:26:29,378 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_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/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 -> 693983fd65e20b5d89b8cfa65a19d47075cafd63 [2018-11-10 03:26:29,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:26:29,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:26:29,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:26:29,409 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:26:29,409 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:26:29,410 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:26:29,444 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/data/19fb86f89/73de1a10b681400e9bed2a952e1385a4/FLAG3b517eb86 [2018-11-10 03:26:29,821 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:26:29,822 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:26:29,832 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/data/19fb86f89/73de1a10b681400e9bed2a952e1385a4/FLAG3b517eb86 [2018-11-10 03:26:29,843 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/bin-2019/uautomizer/data/19fb86f89/73de1a10b681400e9bed2a952e1385a4 [2018-11-10 03:26:29,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:26:29,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:26:29,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:26:29,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:26:29,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:26:29,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:26:29" (1/1) ... [2018-11-10 03:26:29,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1039c3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:29, skipping insertion in model container [2018-11-10 03:26:29,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:26:29" (1/1) ... [2018-11-10 03:26:29,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:26:29,882 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:26:30,056 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:26:30,063 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:26:30,089 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:26:30,116 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:26:30,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30 WrapperNode [2018-11-10 03:26:30,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:26:30,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:26:30,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:26:30,118 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:26:30,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:26:30,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:26:30,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:26:30,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:26:30,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... [2018-11-10 03:26:30,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:26:30,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:26:30,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:26:30,198 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:26:30,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_80bbc73e-58ec-4bc0-a1a9-ec094e159c7a/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 [2018-11-10 03:26:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 03:26:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 03:26:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:26:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:26:30,435 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:26:30,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:30 BoogieIcfgContainer [2018-11-10 03:26:30,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:26:30,436 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 03:26:30,436 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 03:26:30,438 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 03:26:30,439 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:26:30,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 03:26:29" (1/3) ... [2018-11-10 03:26:30,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@754577d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:26:30, skipping insertion in model container [2018-11-10 03:26:30,441 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:26:30,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:30" (2/3) ... [2018-11-10 03:26:30,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@754577d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:26:30, skipping insertion in model container [2018-11-10 03:26:30,441 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:26:30,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:30" (3/3) ... [2018-11-10 03:26:30,443 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:26:30,479 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:26:30,479 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 03:26:30,480 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 03:26:30,480 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 03:26:30,480 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:26:30,480 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:26:30,480 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 03:26:30,480 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:26:30,480 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 03:26:30,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-10 03:26:30,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 03:26:30,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:26:30,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:26:30,508 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:26:30,508 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 03:26:30,508 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 03:26:30,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-10 03:26:30,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 03:26:30,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:26:30,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:26:30,510 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:26:30,510 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 03:26:30,515 INFO L793 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 14#L550true assume !(main_~length1~0 < 1); 3#L550-2true #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~length1~0 * 1;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 6#L554true SUMMARY for call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1) * 1, 1); srcloc: L554 9#L554-1true assume { :begin_inline_cstrlen } true;cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 15#L544-5true [2018-11-10 03:26:30,515 INFO L795 eck$LassoCheckResult]: Loop: 15#L544-5true assume true; 7#L544-1true SUMMARY for call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); srcloc: L544-1 10#L544-2true assume !!(cstrlen_#t~mem3 != 0);havoc cstrlen_#t~mem3; 12#L544-4true cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, cstrlen_~s~0.offset + 1;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, cstrlen_~s~0.offset + 1;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 15#L544-5true [2018-11-10 03:26:30,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:30,519 INFO L82 PathProgramCache]: Analyzing trace with hash 889568230, now seen corresponding path program 1 times [2018-11-10 03:26:30,521 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:26:30,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:26:30,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:26:30,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:30,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1386436, now seen corresponding path program 1 times [2018-11-10 03:26:30,604 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:26:30,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:26:30,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:26:30,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:30,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2107610839, now seen corresponding path program 1 times [2018-11-10 03:26:30,617 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:26:30,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:26:30,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:26:30,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:26:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:30,826 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-11-10 03:26:30,888 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:26:30,888 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:26:30,889 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:26:30,889 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:26:30,889 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:26:30,889 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:26:30,889 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:26:30,889 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:26:30,889 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-10 03:26:30,890 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:26:30,890 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:26:30,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:30,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:30,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:30,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:30,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:30,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:31,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:31,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:31,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:31,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:26:31,351 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:26:31,355 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:26:31,356 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 [2018-11-10 03:26:31,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,357 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:26:31,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,358 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,358 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,359 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:26:31,359 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:26:31,360 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,361 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 [2018-11-10 03:26:31,361 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,361 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:26:31,361 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,361 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,361 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,362 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:26:31,362 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:26:31,363 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,363 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 [2018-11-10 03:26:31,363 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,363 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:26:31,364 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,364 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,364 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,364 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:26:31,364 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:26:31,365 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,366 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 [2018-11-10 03:26:31,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,369 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:26:31,369 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:26:31,373 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,374 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 [2018-11-10 03:26:31,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:26:31,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,375 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,375 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,375 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:26:31,375 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:26:31,376 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,377 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 [2018-11-10 03:26:31,377 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,377 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,377 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,378 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,379 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:26:31,379 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:26:31,383 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,384 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 [2018-11-10 03:26:31,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,385 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-10 03:26:31,385 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,385 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,389 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-10 03:26:31,389 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:26:31,418 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:26:31,418 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 [2018-11-10 03:26:31,419 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:26:31,419 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:26:31,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:26:31,419 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:26:31,425 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:26:31,425 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:26:31,466 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:26:31,490 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 03:26:31,490 INFO L444 ModelExtractionUtils]: 29 out of 34 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-10 03:26:31,492 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:26:31,493 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-10 03:26:31,493 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:26:31,494 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1, ULTIMATE.start_cstrlen_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 - 1*ULTIMATE.start_cstrlen_~s~0.offset Supporting invariants [] [2018-11-10 03:26:31,515 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-10 03:26:31,520 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:26:31,521 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-10 03:26:31,522 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-11-10 03:26:31,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:31,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:26:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:31,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:26:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:31,604 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 [2018-11-10 03:26:31,605 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 5 states. [2018-11-10 03:26:31,646 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 5 states. Result 29 states and 32 transitions. Complement of second has 8 states. [2018-11-10 03:26:31,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:26:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 03:26:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-10 03:26:31,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-10 03:26:31,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:26:31,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-10 03:26:31,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:26:31,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-10 03:26:31,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:26:31,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 32 transitions. [2018-11-10 03:26:31,652 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:26:31,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2018-11-10 03:26:31,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 03:26:31,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 03:26:31,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 03:26:31,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 03:26:31,655 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:26:31,655 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:26:31,655 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:26:31,655 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 03:26:31,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:26:31,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:26:31,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 03:26:31,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 03:26:31 BoogieIcfgContainer [2018-11-10 03:26:31,659 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 03:26:31,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:26:31,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:26:31,660 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:26:31,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:30" (3/4) ... [2018-11-10 03:26:31,663 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:26:31,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:26:31,663 INFO L168 Benchmark]: Toolchain (without parser) took 1817.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 957.5 MB in the beginning and 914.6 MB in the end (delta: 42.9 MB). Peak memory consumption was 201.3 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,664 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:26:31,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.05 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 929.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -223.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,665 INFO L168 Benchmark]: Boogie Preprocessor took 14.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:26:31,666 INFO L168 Benchmark]: RCFGBuilder took 238.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,666 INFO L168 Benchmark]: BuchiAutomizer took 1223.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.9 MB in the end (delta: 210.3 MB). Peak memory consumption was 210.3 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,666 INFO L168 Benchmark]: Witness Printer took 3.24 ms. Allocated memory is still 1.2 GB. Free memory was 917.9 MB in the beginning and 914.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:31,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.05 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 929.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -223.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 238.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1223.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.9 MB in the end (delta: 210.3 MB). Peak memory consumption was 210.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 ms. Allocated memory is still 1.2 GB. Free memory was 917.9 MB in the beginning and 914.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[#Ultimate.alloc_#res] + -1 * s and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 19 SDslu, 10 SDs, 0 SdLazy, 8 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax100 hnf99 lsp95 ukn110 mio100 lsp39 div100 bol100 ite100 ukn100 eq198 hnf88 smp100 dnf101 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 6 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...