./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/stpcpy.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/stpcpy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 313812bc7f7f65c22e6158e6e59cd01f03c6b884 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:31:47,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:31:47,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:31:47,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:31:47,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:31:47,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:31:47,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:31:47,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:31:47,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:31:47,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:31:47,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:31:47,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:31:47,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:31:47,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:31:47,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:31:47,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:31:47,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:31:47,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:31:47,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:31:47,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:31:48,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:31:48,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:31:48,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:31:48,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:31:48,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:31:48,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:31:48,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:31:48,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:31:48,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:31:48,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:31:48,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:31:48,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:31:48,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:31:48,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:31:48,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:31:48,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:31:48,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:31:48,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:31:48,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:31:48,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:31:48,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:31:48,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:31:48,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:31:48,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:31:48,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:31:48,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:31:48,036 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:31:48,037 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:31:48,037 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:31:48,037 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:31:48,038 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:31:48,038 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:31:48,038 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:31:48,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:31:48,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:31:48,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:31:48,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:31:48,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:31:48,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:31:48,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:31:48,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:31:48,041 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:31:48,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:31:48,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:31:48,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:31:48,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:31:48,042 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:31:48,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:31:48,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:31:48,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:31:48,043 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:31:48,044 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:31:48,044 INFO L138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 313812bc7f7f65c22e6158e6e59cd01f03c6b884 [2020-07-29 01:31:48,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:31:48,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:31:48,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:31:48,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:31:48,371 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:31:48,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/stpcpy.i [2020-07-29 01:31:48,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b836db8b2/7cfa52cfab6e4a8c82c481aa0745c48e/FLAGb71026e17 [2020-07-29 01:31:48,927 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:31:48,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/stpcpy.i [2020-07-29 01:31:48,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b836db8b2/7cfa52cfab6e4a8c82c481aa0745c48e/FLAGb71026e17 [2020-07-29 01:31:49,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b836db8b2/7cfa52cfab6e4a8c82c481aa0745c48e [2020-07-29 01:31:49,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:31:49,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:31:49,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:49,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:31:49,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:31:49,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38faf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49, skipping insertion in model container [2020-07-29 01:31:49,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:31:49,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:31:49,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:49,776 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:31:49,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:49,869 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:31:49,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49 WrapperNode [2020-07-29 01:31:49,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:49,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:49,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:31:49,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:31:49,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:49,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:31:49,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:31:49,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:31:49,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... [2020-07-29 01:31:49,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:31:49,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:31:49,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:31:49,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:31:49,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-29 01:31:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:31:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:31:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 01:31:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:31:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:31:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:31:50,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:31:50,386 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-29 01:31:50,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:50 BoogieIcfgContainer [2020-07-29 01:31:50,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:31:50,391 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:31:50,391 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:31:50,394 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:31:50,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:50,396 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:31:49" (1/3) ... [2020-07-29 01:31:50,397 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f5524d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:50, skipping insertion in model container [2020-07-29 01:31:50,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:50,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:49" (2/3) ... [2020-07-29 01:31:50,398 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f5524d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:50, skipping insertion in model container [2020-07-29 01:31:50,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:50,398 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:50" (3/3) ... [2020-07-29 01:31:50,400 INFO L371 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2020-07-29 01:31:50,441 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:31:50,441 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:31:50,441 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:31:50,442 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:31:50,442 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:31:50,442 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:31:50,442 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:31:50,443 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:31:50,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:31:50,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:31:50,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:50,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:50,486 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-29 01:31:50,486 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:31:50,486 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:31:50,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:31:50,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:31:50,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:50,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:50,490 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-29 01:31:50,490 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:31:50,497 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2020-07-29 01:31:50,499 INFO L796 eck$LassoCheckResult]: Loop: 6#L507-3true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); 13#L507-1true assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~mem4;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset; 6#L507-3true [2020-07-29 01:31:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:50,505 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-07-29 01:31:50,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:50,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229133963] [2020-07-29 01:31:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,661 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:50,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:50,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2020-07-29 01:31:50,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:50,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241873090] [2020-07-29 01:31:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:50,691 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2020-07-29 01:31:50,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:50,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624959125] [2020-07-29 01:31:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:50,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:50,810 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:51,315 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-07-29 01:31:51,463 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-29 01:31:51,479 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:51,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:51,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:51,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:51,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:51,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:51,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:51,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:51,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2020-07-29 01:31:51,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:51,483 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:51,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:51,937 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-07-29 01:31:52,101 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-07-29 01:31:52,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:52,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:53,041 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:53,046 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:53,060 INFO L120 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 [2020-07-29 01:31:53,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:53,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:53,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,095 INFO L120 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 [2020-07-29 01:31:53,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:53,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:53,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:53,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,126 INFO L120 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 [2020-07-29 01:31:53,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:53,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:53,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:53,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,158 INFO L120 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 [2020-07-29 01:31:53,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:53,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:53,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:53,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,197 INFO L120 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 [2020-07-29 01:31:53,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:53,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:53,213 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,241 INFO L120 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 [2020-07-29 01:31:53,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:53,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:53,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:53,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:53,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:53,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:53,290 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:53,325 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-07-29 01:31:53,325 INFO L444 ModelExtractionUtils]: 40 out of 46 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:53,366 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:53,407 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:31:53,408 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:53,409 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_stpcpy_~dst.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_stpcpy_~dst.offset Supporting invariants [] [2020-07-29 01:31:53,552 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-07-29 01:31:53,560 INFO L393 LassoCheck]: Loop: "stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1);" "assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~mem4;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset;" [2020-07-29 01:31:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:53,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:31:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:53,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-29 01:31:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:53,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:53,674 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#unseeded} is VALID [2020-07-29 01:31:53,675 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#unseeded} havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, 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~nondet5;havoc main_#t~nondet5; {21#unseeded} is VALID [2020-07-29 01:31:53,676 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#unseeded} assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.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~nondet7;havoc main_#t~nondet7; {21#unseeded} is VALID [2020-07-29 01:31:53,677 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#unseeded} assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; {100#(and (= ULTIMATE.start_stpcpy_~dst.base |ULTIMATE.start_main_#t~malloc8.base|) unseeded)} is VALID [2020-07-29 01:31:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:53,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 01:31:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:53,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:53,853 INFO L280 TraceCheckUtils]: 0: Hoare triple {101#(and (= ULTIMATE.start_stpcpy_~dst.base |ULTIMATE.start_main_#t~malloc8.base|) (>= oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (* (- 1) ULTIMATE.start_stpcpy_~dst.offset))))} stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); {118#(and (= ULTIMATE.start_stpcpy_~dst.base |ULTIMATE.start_main_#t~malloc8.base|) (<= 1 oldRank0) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) 1) (+ ULTIMATE.start_stpcpy_~dst.offset oldRank0)))} is VALID [2020-07-29 01:31:53,854 INFO L280 TraceCheckUtils]: 1: Hoare triple {118#(and (= ULTIMATE.start_stpcpy_~dst.base |ULTIMATE.start_main_#t~malloc8.base|) (<= 1 oldRank0) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) 1) (+ ULTIMATE.start_stpcpy_~dst.offset oldRank0)))} assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~mem4;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset; {103#(and (= ULTIMATE.start_stpcpy_~dst.base |ULTIMATE.start_main_#t~malloc8.base|) (or (and (> oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (* (- 1) ULTIMATE.start_stpcpy_~dst.offset))) (>= oldRank0 0)) unseeded))} is VALID [2020-07-29 01:31:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:31:53,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:31:53,888 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:53,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:53,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:53,899 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 01:31:53,901 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-07-29 01:31:53,988 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 25 transitions. Complement of second has 6 states. [2020-07-29 01:31:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:31:53,989 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:53,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:31:53,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:31:53,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:53,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:53,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:31:53,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:31:53,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:53,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:53,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 25 transitions. [2020-07-29 01:31:53,997 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:53,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:53,999 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states. [2020-07-29 01:31:54,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:31:54,001 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:54,001 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:31:54,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:31:54,004 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:54,004 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 23 states and 25 transitions. cyclomatic complexity: 3 [2020-07-29 01:31:54,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 25 transitions. cyclomatic complexity: 3 [2020-07-29 01:31:54,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:54,005 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:31:54,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:54,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:54,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:54,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:31:54,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:31:54,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:31:54,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:54,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:54,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:54,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:31:54,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:31:54,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:31:54,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:54,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:54,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:54,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 25 transitions. cyclomatic complexity: 3 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:54,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,014 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:31:54,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-29 01:31:54,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:31:54,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:31:54,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:54,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:54,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 25 transitions. cyclomatic complexity: 3 [2020-07-29 01:31:54,028 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:54,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-07-29 01:31:54,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:54,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:54,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:54,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:54,033 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:54,033 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:54,033 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:54,034 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:31:54,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:31:54,034 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:54,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:54,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:31:54 BoogieIcfgContainer [2020-07-29 01:31:54,041 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:31:54,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:31:54,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:31:54,041 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:31:54,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:50" (3/4) ... [2020-07-29 01:31:54,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:31:54,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:31:54,048 INFO L168 Benchmark]: Toolchain (without parser) took 4781.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 961.6 MB in the beginning and 957.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 187.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:54,048 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:54,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -120.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:54,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.12 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:54,050 INFO L168 Benchmark]: Boogie Preprocessor took 32.38 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. [2020-07-29 01:31:54,051 INFO L168 Benchmark]: RCFGBuilder took 432.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:54,052 INFO L168 Benchmark]: BuchiAutomizer took 3650.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 957.0 MB in the end (delta: 84.5 MB). Peak memory consumption was 172.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:54,052 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 957.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:54,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 602.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -120.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.12 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.38 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 432.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3650.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.0 GB in the beginning and 957.0 MB in the end (delta: 84.5 MB). Peak memory consumption was 172.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 957.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * dst and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 11 SDslu, 2 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf98 lsp96 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms 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...