./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb65be693a5a8084c5f6f02ff3a6e18ec8f053b3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 14:44:53,761 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 14:44:53,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 14:44:53,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 14:44:53,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 14:44:53,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 14:44:53,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 14:44:53,770 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 14:44:53,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 14:44:53,771 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 14:44:53,772 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 14:44:53,772 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 14:44:53,772 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 14:44:53,772 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 14:44:53,773 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 14:44:53,773 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 14:44:53,774 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 14:44:53,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 14:44:53,775 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 14:44:53,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 14:44:53,777 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 14:44:53,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 14:44:53,778 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 14:44:53,778 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 14:44:53,778 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 14:44:53,779 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 14:44:53,779 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 14:44:53,780 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 14:44:53,780 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 14:44:53,781 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 14:44:53,781 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 14:44:53,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 14:44:53,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 14:44:53,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 14:44:53,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 14:44:53,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 14:44:53,782 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 14:44:53,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 14:44:53,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 14:44:53,790 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 14:44:53,790 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 14:44:53,790 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 14:44:53,790 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 14:44:53,791 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 14:44:53,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 14:44:53,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 14:44:53,792 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 14:44:53,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 14:44:53,793 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 14:44:53,793 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 14:44:53,793 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 14:44:53,793 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_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb65be693a5a8084c5f6f02ff3a6e18ec8f053b3 [2018-12-09 14:44:53,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 14:44:53,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 14:44:53,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 14:44:53,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 14:44:53,818 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 14:44:53,818 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:44:53,851 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/data/7a8a19b6a/f8ac9726f823410ba524d576cb20507d/FLAGcf9ca0648 [2018-12-09 14:44:54,167 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 14:44:54,168 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:44:54,174 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/data/7a8a19b6a/f8ac9726f823410ba524d576cb20507d/FLAGcf9ca0648 [2018-12-09 14:44:54,586 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/bin-2019/uautomizer/data/7a8a19b6a/f8ac9726f823410ba524d576cb20507d [2018-12-09 14:44:54,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 14:44:54,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 14:44:54,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 14:44:54,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 14:44:54,592 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 14:44:54,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e4483e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54, skipping insertion in model container [2018-12-09 14:44:54,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 14:44:54,620 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 14:44:54,759 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:44:54,765 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 14:44:54,824 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:44:54,846 INFO L195 MainTranslator]: Completed translation [2018-12-09 14:44:54,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54 WrapperNode [2018-12-09 14:44:54,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 14:44:54,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 14:44:54,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 14:44:54,847 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 14:44:54,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 14:44:54,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 14:44:54,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 14:44:54,871 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 14:44:54,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... [2018-12-09 14:44:54,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 14:44:54,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 14:44:54,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 14:44:54,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 14:44:54,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ddc30f78-de76-4c17-9a23-bbaa01fd9da1/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 [2018-12-09 14:44:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 14:44:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 14:44:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 14:44:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 14:44:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 14:44:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 14:44:55,068 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 14:44:55,068 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 14:44:55,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:44:55 BoogieIcfgContainer [2018-12-09 14:44:55,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 14:44:55,069 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 14:44:55,069 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 14:44:55,073 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 14:44:55,073 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 14:44:55,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 02:44:54" (1/3) ... [2018-12-09 14:44:55,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6806a057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 02:44:55, skipping insertion in model container [2018-12-09 14:44:55,075 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 14:44:55,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:44:54" (2/3) ... [2018-12-09 14:44:55,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6806a057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 02:44:55, skipping insertion in model container [2018-12-09 14:44:55,075 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 14:44:55,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:44:55" (3/3) ... [2018-12-09 14:44:55,077 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:44:55,114 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 14:44:55,114 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 14:44:55,114 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 14:44:55,114 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 14:44:55,114 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 14:44:55,114 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 14:44:55,115 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 14:44:55,115 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 14:44:55,115 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 14:44:55,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-12-09 14:44:55,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 14:44:55,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 14:44:55,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 14:44:55,145 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 14:44:55,145 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 14:44:55,145 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 14:44:55,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-12-09 14:44:55,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 14:44:55,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 14:44:55,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 14:44:55,147 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 14:44:55,147 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 14:44:55,153 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~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 19#L559true assume !(main_~length~0 < 1); 6#L559-2true assume !(main_~n~0 < 1); 17#L562-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.alloc(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 11#L543true assume 0 != cstrncpy_~n % 4294967296;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 13#L546-4true [2018-12-09 14:44:55,153 INFO L796 eck$LassoCheckResult]: Loop: 13#L546-4true cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 4#L547true assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset; 8#L546-1true cstrncpy_#t~pre2 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 9#L546-2true assume !!(0 != cstrncpy_#t~pre2 % 4294967296);havoc cstrncpy_#t~pre2; 13#L546-4true [2018-12-09 14:44:55,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:55,157 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2018-12-09 14:44:55,158 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:55,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:55,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:55,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:55,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1618712, now seen corresponding path program 1 times [2018-12-09 14:44:55,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:55,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:55,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:55,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:55,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1592246563, now seen corresponding path program 1 times [2018-12-09 14:44:55,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:55,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:55,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:55,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:55,577 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2018-12-09 14:44:55,645 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 14:44:55,646 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 14:44:55,646 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 14:44:55,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 14:44:55,646 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 14:44:55,646 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 14:44:55,646 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 14:44:55,646 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 14:44:55,647 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-12-09 14:44:55,647 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 14:44:55,647 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 14:44:55,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,856 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-12-09 14:44:55,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:55,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:56,118 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-12-09 14:44:56,412 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 14:44:56,415 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 14:44:56,416 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 [2018-12-09 14:44:56,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,420 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,420 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,421 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,421 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 [2018-12-09 14:44:56,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,422 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,422 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,422 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,422 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,422 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,422 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,423 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,423 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 [2018-12-09 14:44:56,423 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,424 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,424 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,424 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,424 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,424 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,425 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,425 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 [2018-12-09 14:44:56,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,426 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,426 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,427 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,428 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 [2018-12-09 14:44:56,428 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,428 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,428 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,428 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,428 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,428 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,429 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,429 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,429 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 [2018-12-09 14:44:56,430 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,431 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 14:44:56,431 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 14:44:56,434 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,434 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 [2018-12-09 14:44:56,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:56,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,435 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:56,435 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:56,436 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:56,436 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 [2018-12-09 14:44:56,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:56,437 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:56,437 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:56,437 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:56,445 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 14:44:56,446 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 14:44:56,497 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 14:44:56,531 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 14:44:56,531 INFO L444 ModelExtractionUtils]: 50 out of 55 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-09 14:44:56,532 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 14:44:56,533 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-09 14:44:56,534 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 14:44:56,534 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1, ULTIMATE.start_cstrncpy_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1 - 1*ULTIMATE.start_cstrncpy_~s~0.offset Supporting invariants [] [2018-12-09 14:44:56,574 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2018-12-09 14:44:56,580 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 14:44:56,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:44:56,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:44:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:44:56,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:44:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:44:56,673 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 14:44:56,674 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 4 states. [2018-12-09 14:44:56,726 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 4 states. Result 36 states and 44 transitions. Complement of second has 7 states. [2018-12-09 14:44:56,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 14:44:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 14:44:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-12-09 14:44:56,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-09 14:44:56,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:56,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 10 letters. Loop has 4 letters. [2018-12-09 14:44:56,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:56,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 8 letters. [2018-12-09 14:44:56,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:56,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2018-12-09 14:44:56,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 14:44:56,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 14 states and 17 transitions. [2018-12-09 14:44:56,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-09 14:44:56,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-09 14:44:56,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2018-12-09 14:44:56,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 14:44:56,741 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-12-09 14:44:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2018-12-09 14:44:56,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-12-09 14:44:56,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-09 14:44:56,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-12-09 14:44:56,763 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-12-09 14:44:56,763 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-12-09 14:44:56,763 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 14:44:56,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2018-12-09 14:44:56,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 14:44:56,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 14:44:56,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 14:44:56,764 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:44:56,764 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 14:44:56,765 INFO L794 eck$LassoCheckResult]: Stem: 175#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 168#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 169#L559 assume !(main_~length~0 < 1); 177#L559-2 assume !(main_~n~0 < 1); 178#L562-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.alloc(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 180#L543 assume 0 != cstrncpy_~n % 4294967296;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 170#L546-4 cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 171#L547 assume 0 == cstrncpy_#t~mem5;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset; 174#L548-3 [2018-12-09 14:44:56,765 INFO L796 eck$LassoCheckResult]: Loop: 174#L548-3 cstrncpy_#t~pre6 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 176#L548-1 assume !!(0 != cstrncpy_#t~pre6 % 4294967296);havoc cstrncpy_#t~pre6;cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post7.base, 1 + cstrncpy_#t~post7.offset;call write~int(0, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, 1);havoc cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset; 174#L548-3 [2018-12-09 14:44:56,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash 180427599, now seen corresponding path program 1 times [2018-12-09 14:44:56,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:56,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:56,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:56,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:56,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:56,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-12-09 14:44:56,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:56,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:56,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:56,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:56,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:56,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1592231764, now seen corresponding path program 1 times [2018-12-09 14:44:56,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 14:44:56,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 14:44:56,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:44:56,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:44:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 14:44:57,120 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 120 [2018-12-09 14:44:57,194 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 14:44:57,194 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 14:44:57,194 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 14:44:57,194 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 14:44:57,194 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 14:44:57,194 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 14:44:57,194 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 14:44:57,194 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 14:44:57,194 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_Iteration2_Lasso [2018-12-09 14:44:57,194 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 14:44:57,194 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 14:44:57,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,378 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-12-09 14:44:57,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 14:44:57,771 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 14:44:57,771 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 14:44:57,771 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 [2018-12-09 14:44:57,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,772 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,773 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,773 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,773 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,774 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 [2018-12-09 14:44:57,774 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,774 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,774 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,774 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,774 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,774 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,775 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,775 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,775 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 [2018-12-09 14:44:57,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,776 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,776 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 14:44:57,777 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 14:44:57,778 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,778 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 [2018-12-09 14:44:57,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,778 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,779 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,779 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,779 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,779 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,780 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,780 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 [2018-12-09 14:44:57,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,780 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,781 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,781 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,781 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,781 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,781 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,782 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 [2018-12-09 14:44:57,782 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,782 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,782 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,783 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,783 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,783 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,784 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 [2018-12-09 14:44:57,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,784 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,784 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,785 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,785 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,785 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 [2018-12-09 14:44:57,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,786 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,786 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,786 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,787 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 [2018-12-09 14:44:57,787 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,788 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 14:44:57,789 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 14:44:57,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,790 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 [2018-12-09 14:44:57,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,791 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,791 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,791 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,791 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,792 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,792 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 [2018-12-09 14:44:57,793 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 14:44:57,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,793 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,793 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 14:44:57,793 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 14:44:57,794 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 14:44:57,794 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 [2018-12-09 14:44:57,794 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 14:44:57,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 14:44:57,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 14:44:57,795 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 14:44:57,798 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 14:44:57,798 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 14:44:57,811 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 14:44:57,823 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 14:44:57,823 INFO L444 ModelExtractionUtils]: 36 out of 43 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 14:44:57,823 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 14:44:57,824 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-09 14:44:57,824 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 14:44:57,824 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2) = -1*ULTIMATE.start_cstrncpy_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2 Supporting invariants [] [2018-12-09 14:44:57,849 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2018-12-09 14:44:57,851 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 14:44:57,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:44:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:44:57,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:44:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:44:57,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:44:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:44:57,893 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2018-12-09 14:44:57,893 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 5 states. [2018-12-09 14:44:57,923 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 15 states and 19 transitions. Complement of second has 6 states. [2018-12-09 14:44:57,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 14:44:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 14:44:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2018-12-09 14:44:57,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-09 14:44:57,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:57,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 10 letters. Loop has 2 letters. [2018-12-09 14:44:57,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:57,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-09 14:44:57,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 14:44:57,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2018-12-09 14:44:57,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 14:44:57,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-12-09 14:44:57,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 14:44:57,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 14:44:57,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 14:44:57,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 14:44:57,926 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 14:44:57,927 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 14:44:57,927 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 14:44:57,927 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 14:44:57,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 14:44:57,927 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 14:44:57,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 14:44:57,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 02:44:57 BoogieIcfgContainer [2018-12-09 14:44:57,932 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 14:44:57,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 14:44:57,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 14:44:57,933 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 14:44:57,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:44:55" (3/4) ... [2018-12-09 14:44:57,936 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 14:44:57,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 14:44:57,937 INFO L168 Benchmark]: Toolchain (without parser) took 3348.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 950.6 MB in the beginning and 869.3 MB in the end (delta: 81.4 MB). Peak memory consumption was 239.7 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,938 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:44:57,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,939 INFO L168 Benchmark]: Boogie Preprocessor took 14.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:44:57,939 INFO L168 Benchmark]: RCFGBuilder took 183.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,940 INFO L168 Benchmark]: BuchiAutomizer took 2863.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 874.2 MB in the end (delta: 191.9 MB). Peak memory consumption was 248.5 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,940 INFO L168 Benchmark]: Witness Printer took 3.60 ms. Allocated memory is still 1.2 GB. Free memory was 874.2 MB in the beginning and 869.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-12-09 14:44:57,943 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 183.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2863.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 874.2 MB in the end (delta: 191.9 MB). Peak memory consumption was 248.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.60 ms. Allocated memory is still 1.2 GB. Free memory was 874.2 MB in the beginning and 869.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] + -1 * s and consists of 5 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 37 SDslu, 26 SDs, 0 SdLazy, 16 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital231 mio100 ax100 hnf99 lsp97 ukn84 mio100 lsp52 div181 bol100 ite100 ukn100 eq173 hnf68 smp93 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...