./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_malloc_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_malloc_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/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 64bit --witnessprinter.graph.data.programhash 52f90dd69b1856f1819dcbf79b462fc94a85a38d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:39:47,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:39:47,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:39:47,422 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:39:47,422 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:39:47,423 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:39:47,424 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:39:47,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:39:47,426 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:39:47,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:39:47,427 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:39:47,428 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:39:47,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:39:47,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:39:47,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:39:47,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:39:47,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:39:47,432 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:39:47,433 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:39:47,434 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:39:47,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:39:47,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:39:47,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:39:47,436 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:39:47,436 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:39:47,437 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:39:47,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:39:47,438 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:39:47,438 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:39:47,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:39:47,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:39:47,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:39:47,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:39:47,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:39:47,441 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:39:47,441 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:39:47,441 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 06:39:47,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:39:47,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:39:47,453 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:39:47,453 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:39:47,453 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 06:39:47,454 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 06:39:47,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:39:47,454 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:39:47,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 06:39:47,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:39:47,456 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:39:47,456 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 06:39:47,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:39:47,456 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 06:39:47,456 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 06:39:47,456 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 06:39:47,457 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_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f90dd69b1856f1819dcbf79b462fc94a85a38d [2018-11-23 06:39:47,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:39:47,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:39:47,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:39:47,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:39:47,489 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:39:47,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_malloc_true-termination.c.i [2018-11-23 06:39:47,528 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/data/f59d48905/7c9670d1a6bb4615b975ecce5dd9655c/FLAG164afce31 [2018-11-23 06:39:47,862 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:39:47,863 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/sv-benchmarks/c/termination-15/cstrchr_malloc_true-termination.c.i [2018-11-23 06:39:47,868 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/data/f59d48905/7c9670d1a6bb4615b975ecce5dd9655c/FLAG164afce31 [2018-11-23 06:39:47,876 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/bin-2019/uautomizer/data/f59d48905/7c9670d1a6bb4615b975ecce5dd9655c [2018-11-23 06:39:47,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:39:47,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:39:47,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:39:47,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:39:47,883 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:39:47,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:47" (1/1) ... [2018-11-23 06:39:47,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493d5e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:47, skipping insertion in model container [2018-11-23 06:39:47,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:47" (1/1) ... [2018-11-23 06:39:47,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:39:47,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:39:48,116 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:39:48,123 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:39:48,205 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:39:48,245 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:39:48,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48 WrapperNode [2018-11-23 06:39:48,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:39:48,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:39:48,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:39:48,246 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:39:48,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:39:48,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:39:48,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:39:48,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:39:48,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... [2018-11-23 06:39:48,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:39:48,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:39:48,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:39:48,299 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:39:48,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f2dfbfe-6859-4ac8-af5e-b8a16f314ddc/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 [2018-11-23 06:39:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:39:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 06:39:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 06:39:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 06:39:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:39:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:39:48,491 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:39:48,491 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 06:39:48,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:48 BoogieIcfgContainer [2018-11-23 06:39:48,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:39:48,492 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 06:39:48,492 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 06:39:48,496 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 06:39:48,496 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:39:48,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 06:39:47" (1/3) ... [2018-11-23 06:39:48,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54497102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:39:48, skipping insertion in model container [2018-11-23 06:39:48,498 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:39:48,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:48" (2/3) ... [2018-11-23 06:39:48,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54497102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:39:48, skipping insertion in model container [2018-11-23 06:39:48,498 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 06:39:48,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:48" (3/3) ... [2018-11-23 06:39:48,500 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrchr_malloc_true-termination.c.i [2018-11-23 06:39:48,547 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 06:39:48,548 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 06:39:48,548 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 06:39:48,548 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 06:39:48,548 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:39:48,548 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:39:48,548 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 06:39:48,548 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:39:48,548 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 06:39:48,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 06:39:48,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:39:48,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:39:48,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:39:48,588 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 06:39:48,589 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:39:48,589 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 06:39:48,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 06:39:48,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 06:39:48,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 06:39:48,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 06:39:48,592 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 06:39:48,592 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 06:39:48,599 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 8#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 9#L366-5true [2018-11-23 06:39:48,599 INFO L796 eck$LassoCheckResult]: Loop: 9#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 4#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;havoc cstrchr_#t~short207;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, 1 + cstrchr_#t~post208.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 9#L366-5true [2018-11-23 06:39:48,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:39:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2018-11-23 06:39:48,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:39:48,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:39:48,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:39:48,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:39:48,689 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2018-11-23 06:39:48,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:39:48,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:39:48,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:39:48,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:39:48,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2018-11-23 06:39:48,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 06:39:48,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 06:39:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:39:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:48,991 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-23 06:39:49,100 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-11-23 06:39:49,138 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 06:39:49,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 06:39:49,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 06:39:49,139 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 06:39:49,139 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 06:39:49,139 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 06:39:49,139 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 06:39:49,139 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 06:39:49,140 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_malloc_true-termination.c.i_Iteration1_Lasso [2018-11-23 06:39:49,140 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 06:39:49,140 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 06:39:49,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 06:39:49,606 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-11-23 06:39:49,639 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 06:39:49,642 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 06:39:49,643 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 [2018-11-23 06:39:49,644 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,645 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,645 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,645 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,645 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,647 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,647 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,648 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,649 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 [2018-11-23 06:39:49,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,649 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,650 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,650 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,650 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,651 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,652 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 [2018-11-23 06:39:49,652 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,653 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,655 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 06:39:49,656 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,659 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,660 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 [2018-11-23 06:39:49,660 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,660 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,660 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,661 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,661 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,661 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,661 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,662 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,662 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 [2018-11-23 06:39:49,663 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,663 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,663 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,664 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,664 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,664 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,664 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,665 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,665 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 [2018-11-23 06:39:49,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,666 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,666 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,666 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,667 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,667 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 [2018-11-23 06:39:49,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,668 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 06:39:49,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,668 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,669 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,669 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 06:39:49,669 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 06:39:49,670 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,670 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 [2018-11-23 06:39:49,671 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,671 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,673 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 06:39:49,673 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,675 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,676 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 [2018-11-23 06:39:49,676 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,677 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,677 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,677 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,678 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 06:39:49,678 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,681 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,682 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 [2018-11-23 06:39:49,682 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,683 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 06:39:49,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,683 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,686 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 06:39:49,686 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,704 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,704 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 [2018-11-23 06:39:49,705 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,705 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,705 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,705 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,707 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 06:39:49,707 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,717 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 [2018-11-23 06:39:49,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,718 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-11-23 06:39:49,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,745 INFO L402 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2018-11-23 06:39:49,745 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-11-23 06:39:49,875 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 06:39:49,876 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 [2018-11-23 06:39:49,876 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 06:39:49,876 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 06:39:49,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 06:39:49,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 06:39:49,879 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 06:39:49,879 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 06:39:49,900 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 06:39:49,919 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 06:39:49,920 INFO L444 ModelExtractionUtils]: 20 out of 25 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 06:39:49,921 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 06:39:49,922 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 06:39:49,923 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 06:39:49,923 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1 Supporting invariants [] [2018-11-23 06:39:49,936 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-23 06:39:49,943 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 06:39:49,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:39:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:39:49,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:39:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:39:50,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:39:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:39:50,044 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 [2018-11-23 06:39:50,045 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-23 06:39:50,121 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2018-11-23 06:39:50,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 06:39:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 06:39:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-23 06:39:50,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 06:39:50,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:39:50,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 06:39:50,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:39:50,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 06:39:50,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 06:39:50,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2018-11-23 06:39:50,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 06:39:50,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2018-11-23 06:39:50,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 06:39:50,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 06:39:50,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 06:39:50,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 06:39:50,135 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:39:50,135 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:39:50,135 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:39:50,135 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 06:39:50,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:39:50,135 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 06:39:50,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 06:39:50,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 06:39:50 BoogieIcfgContainer [2018-11-23 06:39:50,142 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 06:39:50,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:39:50,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:39:50,143 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:39:50,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:48" (3/4) ... [2018-11-23 06:39:50,146 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 06:39:50,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:39:50,147 INFO L168 Benchmark]: Toolchain (without parser) took 2268.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 952.1 MB in the beginning and 841.4 MB in the end (delta: 110.7 MB). Peak memory consumption was 278.0 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,148 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:39:50,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 952.1 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:39:50,149 INFO L168 Benchmark]: Boogie Preprocessor took 17.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,149 INFO L168 Benchmark]: RCFGBuilder took 193.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,150 INFO L168 Benchmark]: BuchiAutomizer took 1649.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 844.9 MB in the end (delta: 280.8 MB). Peak memory consumption was 280.8 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,150 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory was 844.9 MB in the beginning and 841.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:50,153 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 952.1 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 193.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1649.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 844.9 MB in the end (delta: 280.8 MB). Peak memory consumption was 280.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 ms. Allocated memory is still 1.2 GB. Free memory was 844.9 MB in the beginning and 841.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[malloc(length * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 12 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital178 mio100 ax100 hnf99 lsp98 ukn70 mio100 lsp35 div161 bol100 ite100 ukn100 eq153 hnf66 smp100 dnf849 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 157ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...