./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca_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_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/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 872559d907cc6e66a8bb0b951a033bd6c217aa9a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:51:56,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:51:56,801 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:51:56,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:51:56,809 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:51:56,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:51:56,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:51:56,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:51:56,812 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:51:56,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:51:56,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:51:56,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:51:56,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:51:56,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:51:56,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:51:56,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:51:56,817 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:51:56,819 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:51:56,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:51:56,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:51:56,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:51:56,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:51:56,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:51:56,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:51:56,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:51:56,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:51:56,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:51:56,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:51:56,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:51:56,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:51:56,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:51:56,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:51:56,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:51:56,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:51:56,830 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:51:56,831 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:51:56,831 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 14:51:56,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:51:56,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:51:56,842 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:51:56,842 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:51:56,843 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:51:56,843 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:51:56,843 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:51:56,843 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:51:56,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:51:56,844 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:51:56,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:51:56,845 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:51:56,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:51:56,846 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:51:56,846 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:51:56,846 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:51:56,846 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_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/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 -> 872559d907cc6e66a8bb0b951a033bd6c217aa9a [2018-11-23 14:51:56,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:51:56,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:51:56,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:51:56,878 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:51:56,878 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:51:56,879 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca_true-termination.c.i [2018-11-23 14:51:56,913 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/data/f0982bb39/5ed9b24632c643a09089637236f86564/FLAG9bfe524eb [2018-11-23 14:51:57,331 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:51:57,331 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca_true-termination.c.i [2018-11-23 14:51:57,337 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/data/f0982bb39/5ed9b24632c643a09089637236f86564/FLAG9bfe524eb [2018-11-23 14:51:57,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/bin-2019/uautomizer/data/f0982bb39/5ed9b24632c643a09089637236f86564 [2018-11-23 14:51:57,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:51:57,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:51:57,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:51:57,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:51:57,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:51:57,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335f4bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57, skipping insertion in model container [2018-11-23 14:51:57,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:51:57,382 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:51:57,554 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:51:57,561 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:51:57,628 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:51:57,650 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:51:57,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57 WrapperNode [2018-11-23 14:51:57,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:51:57,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:51:57,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:51:57,651 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:51:57,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:51:57,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:51:57,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:51:57,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:51:57,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... [2018-11-23 14:51:57,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:51:57,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:51:57,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:51:57,691 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:51:57,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6cd18f8-8caf-422d-b229-b3de9a8c01a8/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 14:51:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:51:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 14:51:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:51:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:51:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2018-11-23 14:51:57,733 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2018-11-23 14:51:57,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:51:57,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:51:57,927 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:51:57,927 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 14:51:57,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:57 BoogieIcfgContainer [2018-11-23 14:51:57,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:51:57,928 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:51:57,928 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:51:57,931 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:51:57,932 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:51:57,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:51:57" (1/3) ... [2018-11-23 14:51:57,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20158f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:51:57, skipping insertion in model container [2018-11-23 14:51:57,933 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:51:57,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:57" (2/3) ... [2018-11-23 14:51:57,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20158f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:51:57, skipping insertion in model container [2018-11-23 14:51:57,933 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:51:57,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:57" (3/3) ... [2018-11-23 14:51:57,935 INFO L375 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca_true-termination.c.i [2018-11-23 14:51:57,974 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:51:57,974 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:51:57,974 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:51:57,975 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:51:57,975 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:51:57,975 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:51:57,975 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:51:57,975 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:51:57,975 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:51:57,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 14:51:58,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:51:58,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:51:58,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:51:58,009 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 14:51:58,009 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 14:51:58,009 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:51:58,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 14:51:58,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 14:51:58,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:51:58,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:51:58,011 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 14:51:58,011 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 14:51:58,016 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 6#L555true assume !(main_~length1~0 < 1); 10#L555-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 14#L560true call main_#t~ret6 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 3#strlen_recENTRYtrue [2018-11-23 14:51:58,016 INFO L796 eck$LassoCheckResult]: Loop: 3#strlen_recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 5#L548true assume !(0 == #t~mem2);havoc #t~mem2; 16#L551true call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 3#strlen_recENTRYtrue [2018-11-23 14:51:58,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:51:58,021 INFO L82 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2018-11-23 14:51:58,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:51:58,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:51:58,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:51:58,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:51:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2018-11-23 14:51:58,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:51:58,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:51:58,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:51:58,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:51:58,105 INFO L82 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2018-11-23 14:51:58,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:51:58,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:51:58,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:51:58,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:51:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:51:58,398 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:51:58,398 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:51:58,398 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:51:58,399 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:51:58,399 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:51:58,399 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:51:58,399 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:51:58,399 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:51:58,399 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-23 14:51:58,399 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:51:58,400 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:51:58,414 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 14:51:58,418 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 14:51:58,422 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 14:51:58,423 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 14:51:58,426 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 14:51:58,428 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 14:51:58,430 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 14:51:58,432 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 14:51:58,435 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 14:51:58,463 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 14:51:58,466 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 14:51:58,475 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 14:51:58,477 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 14:51:58,479 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 14:51:58,483 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 14:51:58,485 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 14:51:58,487 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 14:51:58,490 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 14:51:58,492 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 14:51:58,493 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 14:51:58,495 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 14:51:58,497 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 14:51:58,498 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 14:51:58,499 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 14:51:58,501 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 14:51:58,630 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:51:58,634 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:51:58,635 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 14:51:58,637 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,637 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,638 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,639 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:51:58,639 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,642 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,642 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 14:51:58,643 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,643 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,643 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,643 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,643 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,644 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:51:58,644 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,645 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,645 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 14:51:58,645 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,646 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,646 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,646 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,646 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:51:58,646 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,647 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,647 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 14:51:58,648 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,648 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,648 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,648 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,650 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:51:58,650 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:51:58,653 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,654 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 14:51:58,654 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,654 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,654 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,654 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,654 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,655 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:51:58,655 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,656 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 14:51:58,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,657 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,658 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:51:58,659 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:51:58,663 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,663 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 14:51:58,664 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,664 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,664 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,664 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,664 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,664 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:51:58,665 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,665 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,665 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 14:51:58,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,667 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:51:58,668 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:51:58,670 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,671 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 14:51:58,671 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,671 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:51:58,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,671 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 14:51:58,672 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,672 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 14:51:58,672 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:51:58,675 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,676 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 14:51:58,676 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,676 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 14:51:58,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,677 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,678 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 14:51:58,678 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:51:58,687 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:51:58,688 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 14:51:58,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:51:58,688 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:51:58,688 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:51:58,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:51:58,691 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:51:58,691 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:51:58,713 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:51:58,730 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 14:51:58,730 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 14:51:58,732 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:51:58,733 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 14:51:58,733 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:51:58,734 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length strlen_rec_#in~p.base)_1, strlen_rec_#in~p.offset) = 1*v_rep(select #length strlen_rec_#in~p.base)_1 - 1*strlen_rec_#in~p.offset Supporting invariants [] [2018-11-23 14:51:58,738 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 14:51:58,744 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 14:51:58,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:51:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:51:58,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:51:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:51:58,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:51:58,809 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 14:51:58,819 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 14:51:58,820 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-23 14:51:58,870 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 30 states and 35 transitions. Complement of second has 8 states. [2018-11-23 14:51:58,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 14:51:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 14:51:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-23 14:51:58,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 14:51:58,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:51:58,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-23 14:51:58,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:51:58,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-23 14:51:58,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:51:58,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2018-11-23 14:51:58,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:51:58,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2018-11-23 14:51:58,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 14:51:58,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 14:51:58,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 14:51:58,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:51:58,883 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:51:58,883 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:51:58,883 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:51:58,883 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:51:58,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:51:58,884 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 14:51:58,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 14:51:58,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:51:58 BoogieIcfgContainer [2018-11-23 14:51:58,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 14:51:58,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:51:58,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:51:58,889 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:51:58,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:57" (3/4) ... [2018-11-23 14:51:58,892 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:51:58,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:51:58,893 INFO L168 Benchmark]: Toolchain (without parser) took 1545.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.5 MB in the beginning and 965.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 133.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:51:58,894 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:51:58,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:51:58,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.23 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:51:58,895 INFO L168 Benchmark]: Boogie Preprocessor took 13.33 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 14:51:58,895 INFO L168 Benchmark]: RCFGBuilder took 236.91 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:51:58,895 INFO L168 Benchmark]: BuchiAutomizer took 960.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.4 MB in the end (delta: 140.4 MB). Peak memory consumption was 140.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:51:58,896 INFO L168 Benchmark]: Witness Printer took 3.49 ms. Allocated memory is still 1.2 GB. Free memory is still 965.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:51:58,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.23 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.33 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 236.91 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 960.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.4 MB in the end (delta: 140.4 MB). Peak memory consumption was 140.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.49 ms. Allocated memory is still 1.2 GB. Free memory is still 965.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[p] + -1 * p and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 10 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital88 mio100 ax120 hnf100 lsp77 ukn63 mio100 lsp55 div100 bol100 ite100 ukn100 eq162 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...