./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strrchr_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strrchr_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/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 900f92af74c0348435977f69b7ec984c63076a1b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 02:14:00,286 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:14:00,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:14:00,295 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:14:00,295 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:14:00,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:14:00,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:14:00,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:14:00,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:14:00,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:14:00,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:14:00,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:14:00,300 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:14:00,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:14:00,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:14:00,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:14:00,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:14:00,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:14:00,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:14:00,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:14:00,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:14:00,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:14:00,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:14:00,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:14:00,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:14:00,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:14:00,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:14:00,312 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:14:00,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:14:00,314 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:14:00,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:14:00,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:14:00,315 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:14:00,315 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:14:00,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:14:00,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:14:00,316 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 02:14:00,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:14:00,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:14:00,328 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:14:00,328 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:14:00,329 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 02:14:00,329 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 02:14:00,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:14:00,330 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 02:14:00,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 02:14:00,331 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 02:14:00,331 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 02:14:00,332 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 02:14:00,332 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_16aa89c4-d299-4180-8a75-7b7dc513632e/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 -> 900f92af74c0348435977f69b7ec984c63076a1b [2018-12-02 02:14:00,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:14:00,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:14:00,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:14:00,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:14:00,366 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:14:00,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strrchr_true-termination.c.i [2018-12-02 02:14:00,405 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/data/90083d623/451e5ad32ad2445badf4aa23fd3bf278/FLAG6a84200be [2018-12-02 02:14:00,859 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:14:00,859 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/sv-benchmarks/c/termination-libowfat/strrchr_true-termination.c.i [2018-12-02 02:14:00,865 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/data/90083d623/451e5ad32ad2445badf4aa23fd3bf278/FLAG6a84200be [2018-12-02 02:14:00,872 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/data/90083d623/451e5ad32ad2445badf4aa23fd3bf278 [2018-12-02 02:14:00,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:14:00,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:14:00,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:14:00,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:14:00,877 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:14:00,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:14:00" (1/1) ... [2018-12-02 02:14:00,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ed641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:00, skipping insertion in model container [2018-12-02 02:14:00,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:14:00" (1/1) ... [2018-12-02 02:14:00,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:14:00,906 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:14:01,062 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:14:01,068 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:14:01,125 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:14:01,144 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:14:01,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01 WrapperNode [2018-12-02 02:14:01,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:14:01,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:14:01,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:14:01,145 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:14:01,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:14:01,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:14:01,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:14:01,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:14:01,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... [2018-12-02 02:14:01,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:14:01,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:14:01,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:14:01,188 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:14:01,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16aa89c4-d299-4180-8a75-7b7dc513632e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:14:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 02:14:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 02:14:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 02:14:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 02:14:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:14:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:14:01,370 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:14:01,370 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 02:14:01,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:14:01 BoogieIcfgContainer [2018-12-02 02:14:01,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:14:01,371 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 02:14:01,371 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 02:14:01,373 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 02:14:01,374 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:14:01,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 02:14:00" (1/3) ... [2018-12-02 02:14:01,374 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520f25c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:14:01, skipping insertion in model container [2018-12-02 02:14:01,374 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:14:01,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:14:01" (2/3) ... [2018-12-02 02:14:01,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520f25c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:14:01, skipping insertion in model container [2018-12-02 02:14:01,375 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 02:14:01,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:14:01" (3/3) ... [2018-12-02 02:14:01,376 INFO L375 chiAutomizerObserver]: Analyzing ICFG strrchr_true-termination.c.i [2018-12-02 02:14:01,408 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:14:01,409 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 02:14:01,409 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 02:14:01,409 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 02:14:01,409 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:14:01,409 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:14:01,409 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 02:14:01,409 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:14:01,409 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 02:14:01,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-02 02:14:01,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2018-12-02 02:14:01,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:14:01,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:14:01,435 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 02:14:01,436 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:14:01,436 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 02:14:01,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-02 02:14:01,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2018-12-02 02:14:01,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 02:14:01,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 02:14:01,437 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 02:14:01,437 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:14:01,442 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~ret17.base, main_#t~ret17.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet14;havoc main_#t~nondet14; 16#L520true assume !(main_~in_len~0 < 1);call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.alloc(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet16;havoc main_#t~nondet16;strrchr_#in~t.base, strrchr_#in~t.offset, strrchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strrchr_#res.base, strrchr_#res.offset;havoc strrchr_#t~mem2, strrchr_#t~mem3, strrchr_#t~pre4.base, strrchr_#t~pre4.offset, strrchr_#t~mem5, strrchr_#t~mem6, strrchr_#t~pre7.base, strrchr_#t~pre7.offset, strrchr_#t~mem8, strrchr_#t~mem9, strrchr_#t~pre10.base, strrchr_#t~pre10.offset, strrchr_#t~mem11, strrchr_#t~mem12, strrchr_#t~pre13.base, strrchr_#t~pre13.offset, strrchr_~t.base, strrchr_~t.offset, strrchr_~c, strrchr_~ch~0, strrchr_~l~0.base, strrchr_~l~0.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_#in~t.base, strrchr_#in~t.offset;strrchr_~c := strrchr_#in~c;havoc strrchr_~ch~0;strrchr_~l~0.base, strrchr_~l~0.offset := 0, 0;strrchr_~ch~0 := (if strrchr_~c % 256 <= 127 then strrchr_~c % 256 else strrchr_~c % 256 - 256); 19#L510-2true [2018-12-02 02:14:01,443 INFO L796 eck$LassoCheckResult]: Loop: 19#L510-2true assume !false;call strrchr_#t~mem2 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 9#L511true assume strrchr_#t~mem2 == strrchr_~ch~0;havoc strrchr_#t~mem2;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 17#L511-2true call strrchr_#t~mem3 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 21#L511-3true assume !(0 == strrchr_#t~mem3);havoc strrchr_#t~mem3;strrchr_#t~pre4.base, strrchr_#t~pre4.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre4.base, strrchr_#t~pre4.offset;call strrchr_#t~mem5 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 7#L512true assume !(strrchr_#t~mem5 == strrchr_~ch~0);havoc strrchr_#t~mem5; 13#L512-2true call strrchr_#t~mem6 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 18#L512-3true assume !(0 == strrchr_#t~mem6);havoc strrchr_#t~mem6;strrchr_#t~pre7.base, strrchr_#t~pre7.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre7.base, strrchr_#t~pre7.offset;call strrchr_#t~mem8 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 6#L513true assume strrchr_#t~mem8 == strrchr_~ch~0;havoc strrchr_#t~mem8;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 10#L513-2true call strrchr_#t~mem9 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 14#L513-3true assume !(0 == strrchr_#t~mem9);havoc strrchr_#t~mem9;strrchr_#t~pre10.base, strrchr_#t~pre10.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre10.base, strrchr_#t~pre10.offset;call strrchr_#t~mem11 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 4#L514true assume strrchr_#t~mem11 == strrchr_~ch~0;havoc strrchr_#t~mem11;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 8#L514-2true call strrchr_#t~mem12 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 11#L514-3true assume !(0 == strrchr_#t~mem12);havoc strrchr_#t~mem12;strrchr_#t~pre13.base, strrchr_#t~pre13.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre13.base, strrchr_#t~pre13.offset; 19#L510-2true [2018-12-02 02:14:01,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:14:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-12-02 02:14:01,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:14:01,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:14:01,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:14:01,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:14:01,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1555843192, now seen corresponding path program 1 times [2018-12-02 02:14:01,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:14:01,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:14:01,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:14:01,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:14:01,551 INFO L82 PathProgramCache]: Analyzing trace with hash -220781627, now seen corresponding path program 1 times [2018-12-02 02:14:01,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:14:01,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:14:01,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:14:01,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:14:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:14:01,760 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2018-12-02 02:14:01,961 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-12-02 02:14:01,969 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 02:14:01,970 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 02:14:01,970 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 02:14:01,971 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 02:14:01,971 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 02:14:01,971 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 02:14:01,971 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 02:14:01,971 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 02:14:01,972 INFO L131 ssoRankerPreferences]: Filename of dumped script: strrchr_true-termination.c.i_Iteration1_Lasso [2018-12-02 02:14:01,972 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 02:14:01,972 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 02:14:01,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:01,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:01,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:01,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,250 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-12-02 02:14:02,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 02:14:02,701 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2018-12-02 02:14:02,740 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 02:14:02,743 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 02:14:02,744 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,745 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,746 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,746 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,746 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,748 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:14:02,748 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:14:02,752 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,752 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,753 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,754 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,754 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,754 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,755 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,755 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,755 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,755 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,755 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,756 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,756 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,756 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,756 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,756 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,756 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,757 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,757 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,757 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,758 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,758 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,758 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,758 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,758 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,758 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,758 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,759 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,759 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,759 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,760 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,760 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,760 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,760 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,760 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,760 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,760 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,761 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,761 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,761 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,761 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,762 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,763 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,763 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,763 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,763 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,763 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,763 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,763 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,763 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,764 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,764 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,765 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,765 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,765 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,765 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,765 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,765 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,765 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,766 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,766 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,766 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,766 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,767 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,767 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,767 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,768 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,768 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,768 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,769 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,769 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,770 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,770 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,771 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,771 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,771 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,771 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,771 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,772 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:14:02,772 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:14:02,774 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,774 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,774 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,774 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,774 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,775 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,775 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,775 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,775 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,776 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,776 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,776 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,776 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,777 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,777 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,778 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,778 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,778 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,779 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,779 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,780 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,780 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,780 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,781 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,781 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,781 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,781 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,782 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,782 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,782 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,782 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,782 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,783 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,783 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,784 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,784 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,784 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,784 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,785 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,785 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 02:14:02,785 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,785 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 02:14:02,785 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 02:14:02,786 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,786 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,786 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 02:14:02,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,788 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 02:14:02,789 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:14:02,801 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,801 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,801 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,801 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,801 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,802 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:14:02,803 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:14:02,808 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,809 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,809 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,809 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 02:14:02,809 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-12-02 02:14:02,809 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,835 INFO L402 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2018-12-02 02:14:02,835 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-12-02 02:14:02,953 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 02:14:02,953 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 02:14:02,953 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 02:14:02,954 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 02:14:02,954 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 02:14:02,954 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 02:14:02,955 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 02:14:02,955 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 02:14:02,971 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 02:14:02,983 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-02 02:14:02,984 INFO L444 ModelExtractionUtils]: 22 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-02 02:14:02,985 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 02:14:02,986 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-02 02:14:02,986 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 02:14:02,986 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1, ULTIMATE.start_strrchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1 - 1*ULTIMATE.start_strrchr_~t.offset Supporting invariants [] [2018-12-02 02:14:03,008 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2018-12-02 02:14:03,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 02:14:03,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:14:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:14:03,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:14:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:14:03,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:14:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:14:03,107 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-12-02 02:14:03,108 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 6 states. [2018-12-02 02:14:03,194 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 6 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2018-12-02 02:14:03,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 02:14:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-02 02:14:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-12-02 02:14:03,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 13 letters. [2018-12-02 02:14:03,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:14:03,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 16 letters. Loop has 13 letters. [2018-12-02 02:14:03,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:14:03,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 26 letters. [2018-12-02 02:14:03,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 02:14:03,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2018-12-02 02:14:03,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 02:14:03,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2018-12-02 02:14:03,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 02:14:03,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 02:14:03,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 02:14:03,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 02:14:03,204 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:14:03,204 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:14:03,204 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:14:03,204 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 02:14:03,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:14:03,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 02:14:03,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 02:14:03,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 02:14:03 BoogieIcfgContainer [2018-12-02 02:14:03,208 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 02:14:03,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:14:03,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:14:03,208 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:14:03,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:14:01" (3/4) ... [2018-12-02 02:14:03,211 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 02:14:03,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:14:03,211 INFO L168 Benchmark]: Toolchain (without parser) took 2336.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -51.8 MB). Peak memory consumption was 153.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:14:03,212 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:14:03,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:14:03,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.81 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. [2018-12-02 02:14:03,213 INFO L168 Benchmark]: Boogie Preprocessor took 16.29 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. [2018-12-02 02:14:03,213 INFO L168 Benchmark]: RCFGBuilder took 182.67 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-12-02 02:14:03,213 INFO L168 Benchmark]: BuchiAutomizer took 1837.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.9 MB). Peak memory consumption was 154.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:14:03,214 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:14:03,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.81 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 16.29 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. * RCFGBuilder took 182.67 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1837.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.9 MB). Peak memory consumption was 154.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 14 SDtfs, 22 SDslu, 24 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital283 mio100 ax100 hnf99 lsp76 ukn98 mio100 lsp36 div132 bol100 ite100 ukn100 eq166 hnf75 smp79 dnf417 smp57 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 144ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 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...