./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strcasecmp_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_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/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 1c2f9d054b4fbf31aaebd626db3028f09e8a957b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:34:57,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:34:57,240 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:34:57,249 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:34:57,249 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:34:57,250 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:34:57,251 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:34:57,252 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:34:57,253 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:34:57,254 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:34:57,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:34:57,254 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:34:57,255 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:34:57,256 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:34:57,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:34:57,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:34:57,258 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:34:57,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:34:57,260 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:34:57,261 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:34:57,262 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:34:57,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:34:57,264 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:34:57,265 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:34:57,265 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:34:57,266 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:34:57,266 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:34:57,267 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:34:57,267 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:34:57,268 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:34:57,268 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:34:57,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:34:57,269 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:34:57,269 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:34:57,270 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:34:57,270 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:34:57,270 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 07:34:57,281 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:34:57,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:34:57,283 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:34:57,283 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:34:57,283 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:34:57,283 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 07:34:57,283 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 07:34:57,283 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 07:34:57,284 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:34:57,284 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:34:57,285 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 07:34:57,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:34:57,286 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:34:57,286 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 07:34:57,286 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:34:57,286 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:34:57,286 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 07:34:57,287 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 07:34:57,287 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_da573438-ba1e-4f30-8b6f-e84e44dcda25/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 -> 1c2f9d054b4fbf31aaebd626db3028f09e8a957b [2018-11-23 07:34:57,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:34:57,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:34:57,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:34:57,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:34:57,321 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:34:57,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-23 07:34:57,356 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/data/679d3f00d/0e01dd94242148b8b9b9be814000a2d3/FLAG5c692727f [2018-11-23 07:34:57,789 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:34:57,789 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-23 07:34:57,796 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/data/679d3f00d/0e01dd94242148b8b9b9be814000a2d3/FLAG5c692727f [2018-11-23 07:34:57,804 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/bin-2019/uautomizer/data/679d3f00d/0e01dd94242148b8b9b9be814000a2d3 [2018-11-23 07:34:57,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:34:57,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:34:57,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:34:57,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:34:57,811 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:34:57,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:34:57" (1/1) ... [2018-11-23 07:34:57,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfc58e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:57, skipping insertion in model container [2018-11-23 07:34:57,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:34:57" (1/1) ... [2018-11-23 07:34:57,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:34:57,849 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:34:58,040 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:34:58,047 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:34:58,112 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:34:58,144 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:34:58,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58 WrapperNode [2018-11-23 07:34:58,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:34:58,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:34:58,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:34:58,145 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:34:58,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:34:58,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:34:58,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:34:58,173 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:34:58,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... [2018-11-23 07:34:58,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:34:58,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:34:58,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:34:58,193 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:34:58,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da573438-ba1e-4f30-8b6f-e84e44dcda25/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 07:34:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:34:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 07:34:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 07:34:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 07:34:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:34:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:34:58,429 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:34:58,429 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 07:34:58,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:58 BoogieIcfgContainer [2018-11-23 07:34:58,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:34:58,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 07:34:58,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 07:34:58,434 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 07:34:58,434 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:58,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 07:34:57" (1/3) ... [2018-11-23 07:34:58,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e10957a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 07:34:58, skipping insertion in model container [2018-11-23 07:34:58,436 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:58,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:58" (2/3) ... [2018-11-23 07:34:58,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e10957a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 07:34:58, skipping insertion in model container [2018-11-23 07:34:58,436 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:58,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:58" (3/3) ... [2018-11-23 07:34:58,438 INFO L375 chiAutomizerObserver]: Analyzing ICFG strcasecmp_true-termination.c.i [2018-11-23 07:34:58,486 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:34:58,487 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 07:34:58,487 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 07:34:58,487 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 07:34:58,487 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:34:58,487 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:34:58,488 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 07:34:58,488 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:34:58,488 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 07:34:58,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 07:34:58,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-23 07:34:58,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:34:58,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:34:58,525 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 07:34:58,525 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:34:58,525 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 07:34:58,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 07:34:58,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-23 07:34:58,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:34:58,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:34:58,527 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 07:34:58,527 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:34:58,533 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L523true assume !(main_~in_len~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.alloc(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet8;havoc main_#t~nondet8; 18#L527true assume !(main_~out_len~0 < 1);call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.alloc(main_~in_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1), 1);strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset, strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcasecmp_#res;havoc strcasecmp_#t~mem2, strcasecmp_#t~mem3, strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset, strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset, strcasecmp_~s1.base, strcasecmp_~s1.offset, strcasecmp_~s2.base, strcasecmp_~s2.offset, strcasecmp_~x2~0, strcasecmp_~x1~0;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset;havoc strcasecmp_~x2~0;havoc strcasecmp_~x1~0; 14#L510-2true [2018-11-23 07:34:58,534 INFO L796 eck$LassoCheckResult]: Loop: 14#L510-2true assume !false;call strcasecmp_#t~mem2 := read~int(strcasecmp_~s2.base, strcasecmp_~s2.offset, 1);strcasecmp_~x2~0 := strcasecmp_#t~mem2 - 65;havoc strcasecmp_#t~mem2; 7#L511true assume strcasecmp_~x2~0 % 4294967296 < 26;strcasecmp_~x2~0 := 32 + strcasecmp_~x2~0; 11#L511-2true call strcasecmp_#t~mem3 := read~int(strcasecmp_~s1.base, strcasecmp_~s1.offset, 1);strcasecmp_~x1~0 := strcasecmp_#t~mem3 - 65;havoc strcasecmp_#t~mem3; 6#L512true assume !(strcasecmp_~x1~0 % 4294967296 < 26); 9#L512-2true strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset := strcasecmp_~s1.base, strcasecmp_~s1.offset;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#t~post4.base, 1 + strcasecmp_#t~post4.offset;havoc strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset;strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset := strcasecmp_~s2.base, strcasecmp_~s2.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#t~post5.base, 1 + strcasecmp_#t~post5.offset;havoc strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset; 4#L514true assume !(strcasecmp_~x2~0 % 4294967296 != strcasecmp_~x1~0 % 4294967296); 3#L516true assume !(4294967231 == strcasecmp_~x1~0 % 4294967296); 14#L510-2true [2018-11-23 07:34:58,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:58,539 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-11-23 07:34:58,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:58,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:58,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:58,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:58,654 INFO L82 PathProgramCache]: Analyzing trace with hash -380472609, now seen corresponding path program 1 times [2018-11-23 07:34:58,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:58,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:58,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:58,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1579348248, now seen corresponding path program 1 times [2018-11-23 07:34:58,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:58,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:58,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:58,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:58,875 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2018-11-23 07:34:59,121 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-11-23 07:34:59,191 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:34:59,191 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:34:59,192 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:34:59,192 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:34:59,192 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:34:59,192 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:34:59,192 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:34:59,192 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:34:59,192 INFO L131 ssoRankerPreferences]: Filename of dumped script: strcasecmp_true-termination.c.i_Iteration1_Lasso [2018-11-23 07:34:59,193 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:34:59,193 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:34:59,212 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 07:34:59,215 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 07:34:59,217 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 07:34:59,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:34:59,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:34:59,440 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-11-23 07:34:59,592 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2018-11-23 07:34:59,592 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 07:34:59,594 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 07:34:59,595 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 07:34:59,597 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 07:34:59,598 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 07:34:59,599 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 07:34:59,601 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 07:34:59,603 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 07:34:59,604 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 07:35:00,043 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:00,048 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:00,049 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 07:35:00,050 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,050 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:00,051 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,051 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,052 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:00,052 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:00,054 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,054 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 07:35:00,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,055 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:00,055 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,055 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,056 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:00,056 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:00,056 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,057 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 07:35:00,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,058 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:00,058 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,058 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,058 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,058 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:00,059 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:00,059 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,060 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 07:35:00,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,061 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:00,061 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,061 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,061 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,062 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:00,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:00,062 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,063 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 07:35:00,063 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,067 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:00,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,069 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:00,069 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:00,078 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,079 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 07:35:00,079 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,080 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,080 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,080 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,082 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,082 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,084 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,084 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 07:35:00,085 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,085 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,085 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,085 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,087 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,087 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,098 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,099 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 07:35:00,099 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,100 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,100 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,101 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,101 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,103 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,104 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 07:35:00,104 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,104 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,104 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,106 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,106 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,114 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,115 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 07:35:00,115 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,115 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,115 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,116 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,116 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,116 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,118 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:00,119 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 07:35:00,119 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:00,119 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:00,119 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:00,120 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:00,125 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:00,125 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:00,166 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:00,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 07:35:00,204 INFO L444 ModelExtractionUtils]: 44 out of 49 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 07:35:00,206 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:00,207 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 07:35:00,208 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:00,208 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_1) = -1*ULTIMATE.start_strcasecmp_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_1 Supporting invariants [] [2018-11-23 07:35:00,281 INFO L297 tatePredicateManager]: 16 out of 18 supporting invariants were superfluous and have been removed [2018-11-23 07:35:00,290 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 07:35:00,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:00,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:00,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:00,421 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 07:35:00,435 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-23 07:35:00,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2018-11-23 07:35:00,501 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 38 states and 49 transitions. Complement of second has 9 states. [2018-11-23 07:35:00,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 07:35:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 07:35:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2018-11-23 07:35:00,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 4 letters. Loop has 7 letters. [2018-11-23 07:35:00,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:00,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 11 letters. Loop has 7 letters. [2018-11-23 07:35:00,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:00,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 4 letters. Loop has 14 letters. [2018-11-23 07:35:00,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:00,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2018-11-23 07:35:00,508 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 07:35:00,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-23 07:35:00,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 07:35:00,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 07:35:00,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 07:35:00,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 07:35:00,511 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:00,511 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:00,511 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:00,511 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 07:35:00,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:35:00,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 07:35:00,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 07:35:00,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 07:35:00 BoogieIcfgContainer [2018-11-23 07:35:00,516 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 07:35:00,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:35:00,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:35:00,516 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:35:00,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:58" (3/4) ... [2018-11-23 07:35:00,519 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 07:35:00,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:35:00,520 INFO L168 Benchmark]: Toolchain (without parser) took 2713.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:00,520 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:35:00,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:00,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:00,522 INFO L168 Benchmark]: Boogie Preprocessor took 19.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:35:00,522 INFO L168 Benchmark]: RCFGBuilder took 237.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:00,522 INFO L168 Benchmark]: BuchiAutomizer took 2085.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:00,523 INFO L168 Benchmark]: Witness Printer took 2.97 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 07:35:00,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 237.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2085.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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: 18 SDtfs, 24 SDslu, 18 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital228 mio100 ax100 hnf100 lsp97 ukn88 mio100 lsp45 div161 bol100 ite100 ukn100 eq146 hnf72 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms 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...