./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.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-memory-alloca/openbsd_cstpcpy-alloca-2.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 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:36:28,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:36:28,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:36:28,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:36:28,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:36:28,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:36:28,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:36:28,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:36:28,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:36:28,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:36:28,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:36:28,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:36:28,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:36:28,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:36:28,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:36:28,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:36:28,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:36:28,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:36:28,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:36:28,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:36:28,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:36:28,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:36:28,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:36:28,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:36:28,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:36:28,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:36:28,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:36:28,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:36:28,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:36:28,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:36:28,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:36:28,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:36:28,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:36:28,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:36:28,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:36:28,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:36:28,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:36:28,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:36:28,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:36:28,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:36:28,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:36:28,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:36:28,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:36:28,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:36:28,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:36:28,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:36:28,974 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:36:28,974 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:36:28,974 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:36:28,975 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:36:28,975 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:36:28,975 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:36:28,976 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:36:28,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:36:28,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:36:28,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:36:28,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:36:28,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:36:28,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:36:28,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:36:28,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:36:28,978 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:36:28,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:36:28,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:36:28,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:36:28,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:36:28,980 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:36:28,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:36:28,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:36:28,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:36:28,981 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:36:28,982 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:36:28,983 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 -> 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 [2020-07-29 01:36:29,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:36:29,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:36:29,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:36:29,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:36:29,316 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:36:29,317 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2020-07-29 01:36:29,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76695e544/c9f14314cc4c4b16aa37c1f433816ce2/FLAG053512b63 [2020-07-29 01:36:29,919 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:36:29,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2020-07-29 01:36:29,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76695e544/c9f14314cc4c4b16aa37c1f433816ce2/FLAG053512b63 [2020-07-29 01:36:30,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76695e544/c9f14314cc4c4b16aa37c1f433816ce2 [2020-07-29 01:36:30,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:36:30,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:36:30,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:30,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:36:30,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:36:30,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b56b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30, skipping insertion in model container [2020-07-29 01:36:30,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:36:30,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:36:30,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:30,798 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:36:30,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:30,902 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:36:30,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30 WrapperNode [2020-07-29 01:36:30,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:30,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:30,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:36:30,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:36:30,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:30,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:36:30,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:36:30,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:36:30,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (1/1) ... [2020-07-29 01:36:30,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:36:30,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:36:30,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:36:30,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:36:30,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (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 01:36:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:36:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:36:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 01:36:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:36:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:36:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:36:31,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:36:31,493 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-29 01:36:31,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:31 BoogieIcfgContainer [2020-07-29 01:36:31,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:36:31,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:36:31,498 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:36:31,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:36:31,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:31,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:36:30" (1/3) ... [2020-07-29 01:36:31,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e8850a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:31, skipping insertion in model container [2020-07-29 01:36:31,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:31,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:30" (2/3) ... [2020-07-29 01:36:31,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e8850a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:31, skipping insertion in model container [2020-07-29 01:36:31,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:31,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:31" (3/3) ... [2020-07-29 01:36:31,508 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-2.i [2020-07-29 01:36:31,556 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:36:31,556 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:36:31,557 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:36:31,557 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:36:31,557 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:36:31,557 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:36:31,558 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:36:31,558 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:36:31,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:31,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:31,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:31,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:31,606 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:31,606 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:36:31,606 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:36:31,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:31,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:31,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:31,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:31,610 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:31,611 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:36:31,617 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L555true assume !(main_~length1~0 < 1); 11#L555-2true assume !(main_~length2~0 < 1); 4#L558-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 6#L549-4true [2020-07-29 01:36:31,618 INFO L796 eck$LassoCheckResult]: Loop: 6#L549-4true call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 3#L549-1true assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 5#L549-3true cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 6#L549-4true [2020-07-29 01:36:31,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:31,624 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-07-29 01:36:31,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:31,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925408294] [2020-07-29 01:36:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,804 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:31,806 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2020-07-29 01:36:31,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:31,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856090390] [2020-07-29 01:36:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:31,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:31,872 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2020-07-29 01:36:31,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:31,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28544816] [2020-07-29 01:36:31,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:31,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:31,969 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:32,451 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2020-07-29 01:36:32,647 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-29 01:36:32,664 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:36:32,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:36:32,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:36:32,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:36:32,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:36:32,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:32,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:36:32,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:36:32,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-2.i_Iteration1_Lasso [2020-07-29 01:36:32,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:36:32,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:36:32,753 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 01:36:32,766 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 01:36:32,772 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 01:36:32,779 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 01:36:32,784 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 01:36:32,791 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 01:36:32,800 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 01:36:32,807 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 01:36:33,178 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-07-29 01:36:33,340 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-07-29 01:36:33,346 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 01:36:33,352 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 01:36:33,358 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 01:36:33,363 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 01:36:33,368 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 01:36:33,373 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 01:36:33,379 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 01:36:33,384 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 01:36:33,390 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 01:36:33,397 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 01:36:34,492 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:36:34,496 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:34,505 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 01:36:34,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:34,519 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) [2020-07-29 01:36:34,561 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 01:36:34,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:34,568 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 01:36:34,596 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 01:36:34,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:34,608 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 01:36:34,635 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 01:36:34,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:34,640 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 01:36:34,665 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 01:36:34,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:34,671 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 01:36:34,695 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 01:36:34,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:34,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:34,709 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 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 01:36:34,733 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 01:36:34,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:34,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:34,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:34,738 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:34,763 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 01:36:34,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:34,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:34,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:34,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:34,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:34,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:34,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:36:34,968 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-07-29 01:36:34,968 INFO L444 ModelExtractionUtils]: 22 out of 43 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:35,000 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:36:35,007 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:36:35,008 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:36:35,009 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_cstpcpy_~to.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_cstpcpy_~to.offset Supporting invariants [] [2020-07-29 01:36:35,112 INFO L297 tatePredicateManager]: 11 out of 13 supporting invariants were superfluous and have been removed [2020-07-29 01:36:35,128 INFO L393 LassoCheck]: Loop: "call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1);" "assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4;" "cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset;" [2020-07-29 01:36:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:35,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:36:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:35,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-29 01:36:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:35,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:35,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {23#unseeded} is VALID [2020-07-29 01:36:35,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#unseeded} havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; {23#unseeded} is VALID [2020-07-29 01:36:35,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {23#unseeded} assume !(main_~length1~0 < 1); {23#unseeded} is VALID [2020-07-29 01:36:35,234 INFO L280 TraceCheckUtils]: 3: Hoare triple {23#unseeded} assume !(main_~length2~0 < 1); {23#unseeded} is VALID [2020-07-29 01:36:35,236 INFO L280 TraceCheckUtils]: 4: Hoare triple {23#unseeded} assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; {103#(and (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset) unseeded)} is VALID [2020-07-29 01:36:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:35,247 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-29 01:36:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:35,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:35,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (>= oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (* (- 1) ULTIMATE.start_cstpcpy_~to.offset))) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); {124#(and (<= (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (+ ULTIMATE.start_cstpcpy_~to.offset oldRank0)) (<= (+ ULTIMATE.start_cstpcpy_~from.offset 1) (select |#length| ULTIMATE.start_cstpcpy_~from.base)) (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} is VALID [2020-07-29 01:36:35,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {124#(and (<= (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (+ ULTIMATE.start_cstpcpy_~to.offset oldRank0)) (<= (+ ULTIMATE.start_cstpcpy_~from.offset 1) (select |#length| ULTIMATE.start_cstpcpy_~from.base)) (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; {124#(and (<= (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (+ ULTIMATE.start_cstpcpy_~to.offset oldRank0)) (<= (+ ULTIMATE.start_cstpcpy_~from.offset 1) (select |#length| ULTIMATE.start_cstpcpy_~from.base)) (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} is VALID [2020-07-29 01:36:35,294 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#(and (<= (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (+ ULTIMATE.start_cstpcpy_~to.offset oldRank0)) (<= (+ ULTIMATE.start_cstpcpy_~from.offset 1) (select |#length| ULTIMATE.start_cstpcpy_~from.base)) (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; {106#(and (or (and (> oldRank0 (+ (select |#length| |ULTIMATE.start_main_#t~malloc8.base|) (* (- 1) ULTIMATE.start_cstpcpy_~to.offset))) (>= oldRank0 0)) unseeded) (= ULTIMATE.start_cstpcpy_~from.base |ULTIMATE.start_main_#t~malloc8.base|) (= ULTIMATE.start_cstpcpy_~to.offset ULTIMATE.start_cstpcpy_~from.offset))} is VALID [2020-07-29 01:36:35,295 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 01:36:35,307 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:36:35,327 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:36:35,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,341 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 01:36:35,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-07-29 01:36:35,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2020-07-29 01:36:35,472 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 01:36:35,472 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:35,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:35,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:35,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:35,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:35,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:36:35,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:35,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:35,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:35,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2020-07-29 01:36:35,485 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:35,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:35,488 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 13 states. [2020-07-29 01:36:35,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:35,491 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:36:35,492 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:36:35,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:35,495 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:36:35,495 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 26 states and 30 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:35,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:35,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:35,496 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:36:35,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 26 letters. Loop has 26 letters. [2020-07-29 01:36:35,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 26 letters. Loop has 26 letters. [2020-07-29 01:36:35,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 26 letters. Loop has 26 letters. [2020-07-29 01:36:35,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:35,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:35,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:35,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:35,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:35,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:35,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:35,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:35,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:35,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:35,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:35,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:35,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:35,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:35,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:35,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 26 states and 30 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:35,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,510 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:36:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-29 01:36:35,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:35,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-29 01:36:35,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-29 01:36:35,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:35,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:35,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:35,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2020-07-29 01:36:35,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:36:35,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:36:35,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:36:35,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:36:35,528 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:35,528 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:35,528 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:35,528 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:36:35,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:36:35,529 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:35,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:35,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:36:35 BoogieIcfgContainer [2020-07-29 01:36:35,536 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:36:35,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:36:35,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:36:35,537 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:36:35,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:31" (3/4) ... [2020-07-29 01:36:35,542 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:36:35,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:36:35,544 INFO L168 Benchmark]: Toolchain (without parser) took 5276.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 961.6 MB in the beginning and 966.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:35,545 INFO L168 Benchmark]: CDTParser took 0.31 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 01:36:35,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:35,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.75 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:35,547 INFO L168 Benchmark]: Boogie Preprocessor took 32.21 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. [2020-07-29 01:36:35,548 INFO L168 Benchmark]: RCFGBuilder took 506.29 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:35,549 INFO L168 Benchmark]: BuchiAutomizer took 4038.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 186.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:35,550 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 966.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:35,555 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 0.31 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 630.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.75 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.21 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 506.29 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4038.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 186.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 966.8 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 (length2 * sizeof(char))] + -1 * to and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 12 SDtfs, 14 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax109 hnf99 lsp88 ukn90 mio100 lsp46 div100 bol100 ite100 ukn100 eq196 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms 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...