./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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-15/cstrncpy_reverse_alloca.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 cd1d6be80620224d07434e02e12c771f8c62f3e2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:04:01,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:04:01,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:04:01,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:04:01,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:04:01,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:04:01,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:04:01,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:04:01,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:04:01,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:04:01,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:04:01,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:04:01,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:04:01,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:04:01,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:04:01,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:04:01,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:04:01,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:04:01,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:04:01,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:04:01,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:04:01,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:04:01,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:04:01,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:04:01,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:04:01,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:04:01,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:04:01,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:04:01,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:04:01,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:04:01,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:04:01,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:04:01,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:04:01,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:04:01,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:04:01,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:04:01,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:04:01,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:04:01,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:04:01,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:04:01,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:04:01,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:04:01,981 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:04:01,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:04:01,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:04:01,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:04:01,984 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:04:01,984 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:04:01,984 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:04:01,985 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:04:01,985 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:04:01,985 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:04:01,986 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:04:01,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:04:01,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:04:01,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:04:01,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:04:01,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:04:01,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:04:01,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:04:01,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:04:01,988 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:04:01,989 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:04:01,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:04:01,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:04:01,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:04:01,990 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:04:01,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:04:01,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:04:01,991 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:04:01,992 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:04:01,992 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 -> cd1d6be80620224d07434e02e12c771f8c62f3e2 [2019-11-28 03:04:02,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:04:02,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:04:02,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:04:02,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:04:02,342 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:04:02,343 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2019-11-28 03:04:02,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc2cd66b/e391bc6be8a14b76bd5f4e08fc87aa78/FLAG715cf437c [2019-11-28 03:04:02,960 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:04:02,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2019-11-28 03:04:02,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc2cd66b/e391bc6be8a14b76bd5f4e08fc87aa78/FLAG715cf437c [2019-11-28 03:04:03,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc2cd66b/e391bc6be8a14b76bd5f4e08fc87aa78 [2019-11-28 03:04:03,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:04:03,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:04:03,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:03,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:04:03,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:04:03,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cff6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03, skipping insertion in model container [2019-11-28 03:04:03,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:04:03,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:04:03,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:03,759 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:04:03,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:03,890 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:04:03,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03 WrapperNode [2019-11-28 03:04:03,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:03,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:03,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:04:03,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:04:03,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:03,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:04:03,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:04:03,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:04:03,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (1/1) ... [2019-11-28 03:04:03,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:04:03,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:04:03,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:04:03,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:04:03,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (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 [2019-11-28 03:04:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:04:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:04:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:04:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:04:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:04:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:04:04,346 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:04:04,346 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 03:04:04,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:04 BoogieIcfgContainer [2019-11-28 03:04:04,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:04:04,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:04:04,351 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:04:04,358 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:04:04,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:04,362 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:04:03" (1/3) ... [2019-11-28 03:04:04,363 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1264ae3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:04, skipping insertion in model container [2019-11-28 03:04:04,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:04,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:03" (2/3) ... [2019-11-28 03:04:04,368 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1264ae3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:04, skipping insertion in model container [2019-11-28 03:04:04,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:04,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:04" (3/3) ... [2019-11-28 03:04:04,371 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncpy_reverse_alloca.i [2019-11-28 03:04:04,426 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:04:04,426 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:04:04,426 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:04:04,427 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:04:04,427 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:04:04,427 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:04:04,427 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:04:04,427 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:04:04,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:04:04,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 03:04:04,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:04,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:04,465 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:04:04,465 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:04:04,466 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:04:04,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:04:04,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 03:04:04,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:04,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:04,468 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:04:04,468 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:04:04,474 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 5#L385true assume !(main_~length~0 < 1); 7#L385-2true assume !(main_~n~0 < 1); 3#L388-1true call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset + (main_~n~0 - 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 14#L370-2true [2019-11-28 03:04:04,475 INFO L796 eck$LassoCheckResult]: Loop: 14#L370-2true assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset - 1;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset - 1;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 9#L372true assume !(0 == cstrncpy_#t~mem208);havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset; 14#L370-2true [2019-11-28 03:04:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:04,481 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 03:04:04,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:04,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111413104] [2019-11-28 03:04:04,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,654 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:04,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1747, now seen corresponding path program 1 times [2019-11-28 03:04:04,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:04,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983644350] [2019-11-28 03:04:04,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:04,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:04,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935768, now seen corresponding path program 1 times [2019-11-28 03:04:04,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:04,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542756621] [2019-11-28 03:04:04,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:04,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:05,007 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-11-28 03:04:05,468 WARN L192 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-11-28 03:04:05,620 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 03:04:05,634 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:05,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:05,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:05,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:05,635 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:05,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:05,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:05,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:05,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration1_Lasso [2019-11-28 03:04:05,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:05,636 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:05,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:05,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:05,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:05,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:05,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,077 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-11-28 03:04:06,257 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-28 03:04:06,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:06,984 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:06,991 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 [2019-11-28 03:04:07,004 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 [2019-11-28 03:04:07,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:07,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:07,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:07,016 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) [2019-11-28 03:04:07,039 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 [2019-11-28 03:04:07,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:07,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:07,046 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 [2019-11-28 03:04:07,054 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) [2019-11-28 03:04:07,068 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 [2019-11-28 03:04:07,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:07,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:07,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,077 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) [2019-11-28 03:04:07,090 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 [2019-11-28 03:04:07,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:07,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,107 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) [2019-11-28 03:04:07,123 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 [2019-11-28 03:04:07,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:07,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:07,138 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) [2019-11-28 03:04:07,150 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 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:07,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:07,179 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) [2019-11-28 03:04:07,190 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 [2019-11-28 03:04:07,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:07,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:07,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:07,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:07,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:07,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,234 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:07,339 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 03:04:07,339 INFO L444 ModelExtractionUtils]: 12 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. 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) [2019-11-28 03:04:07,380 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:07,384 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:07,384 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:07,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2019-11-28 03:04:07,438 INFO L297 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2019-11-28 03:04:07,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:07,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:07,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:07,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:04:07,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:07,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:07,569 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 [2019-11-28 03:04:07,570 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-28 03:04:07,619 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2019-11-28 03:04:07,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:04:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-11-28 03:04:07,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 03:04:07,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:07,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:04:07,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:07,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-28 03:04:07,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:07,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2019-11-28 03:04:07,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:04:07,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2019-11-28 03:04:07,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-28 03:04:07,638 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-28 03:04:07,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-28 03:04:07,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:04:07,640 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-28 03:04:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-28 03:04:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-28 03:04:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 03:04:07,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-28 03:04:07,670 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-28 03:04:07,670 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-28 03:04:07,670 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:04:07,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-28 03:04:07,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:04:07,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:07,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:07,672 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:07,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:04:07,673 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 133#L-1 havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 134#L385 assume !(main_~length~0 < 1); 138#L385-2 assume !(main_~n~0 < 1); 136#L388-1 call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset + (main_~n~0 - 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 137#L370-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset - 1;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset - 1;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 131#L372 assume 0 == cstrncpy_#t~mem208;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 129#L375-3 [2019-11-28 03:04:07,673 INFO L796 eck$LassoCheckResult]: Loop: 129#L375-3 cstrncpy_#t~post209 := cstrncpy_~n2~0;cstrncpy_~n2~0 := cstrncpy_#t~post209 - 1; 130#L375-1 assume !!(0 != cstrncpy_#t~post209);havoc cstrncpy_#t~post209;cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset := cstrncpy_~us~0.base, cstrncpy_~us~0.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset - 1;call write~int(0, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, 1);havoc cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset; 129#L375-3 [2019-11-28 03:04:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935753, now seen corresponding path program 1 times [2019-11-28 03:04:07,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:07,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473435081] [2019-11-28 03:04:07,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,716 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:07,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:07,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2019-11-28 03:04:07,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:07,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689195400] [2019-11-28 03:04:07,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,729 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:07,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1298472078, now seen corresponding path program 1 times [2019-11-28 03:04:07,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:07,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311032143] [2019-11-28 03:04:07,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:07,794 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:08,505 WARN L192 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 130 [2019-11-28 03:04:08,695 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-28 03:04:08,699 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:08,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:08,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:08,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:08,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:08,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:08,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:08,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:08,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration2_Lasso [2019-11-28 03:04:08,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:08,700 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:08,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:08,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,093 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-11-28 03:04:09,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:09,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:04:09,915 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:09,915 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 03:04:09,920 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 [2019-11-28 03:04:09,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:09,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:09,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:09,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:09,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:09,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:09,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:09,924 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:09,931 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 [2019-11-28 03:04:09,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:09,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:09,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:09,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:09,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:09,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:09,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:09,935 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 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:09,947 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 [2019-11-28 03:04:09,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:09,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:09,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:09,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:09,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:09,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:09,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:09,951 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 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:09,957 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 [2019-11-28 03:04:09,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:09,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:09,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:09,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:09,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:09,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:09,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:09,961 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:09,973 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 [2019-11-28 03:04:09,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:09,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:09,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:09,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:09,977 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:09,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:09,982 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:10,001 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 [2019-11-28 03:04:10,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:10,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:10,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:10,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:10,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:10,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:10,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:10,006 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:10,017 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 [2019-11-28 03:04:10,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:10,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:10,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:10,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:10,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:10,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:10,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:10,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:10,049 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 [2019-11-28 03:04:10,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:10,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:10,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:10,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:10,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:10,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:10,060 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:10,068 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 [2019-11-28 03:04:10,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:10,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:10,071 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:10,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:10,107 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:04:10,108 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:10,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:10,249 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-28 03:04:10,250 INFO L444 ModelExtractionUtils]: 47 out of 66 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:10,267 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:10,271 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-11-28 03:04:10,271 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:10,271 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc213.base)_2, ULTIMATE.start_cstrncpy_~us~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc213.base)_2 + 2*ULTIMATE.start_cstrncpy_~us~0.offset Supporting invariants [] [2019-11-28 03:04:10,333 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2019-11-28 03:04:10,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:04:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:10,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 03:04:10,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:10,416 WARN L253 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:04:10,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:10,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-28 03:04:10,417 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-28 03:04:10,453 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-11-28 03:04:10,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:04:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-28 03:04:10,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:04:10,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:10,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-28 03:04:10,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:10,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-28 03:04:10,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:10,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2019-11-28 03:04:10,458 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:10,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-11-28 03:04:10,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:04:10,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:04:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:04:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:04:10,459 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:10,459 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:10,459 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:10,460 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:04:10,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:04:10,460 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:10,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:04:10,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:04:10 BoogieIcfgContainer [2019-11-28 03:04:10,468 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:04:10,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:04:10,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:04:10,469 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:04:10,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:04" (3/4) ... [2019-11-28 03:04:10,474 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:04:10,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:04:10,477 INFO L168 Benchmark]: Toolchain (without parser) took 7237.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -199.7 MB). Peak memory consumption was 118.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,478 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:10,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,481 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,482 INFO L168 Benchmark]: RCFGBuilder took 382.30 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,483 INFO L168 Benchmark]: BuchiAutomizer took 6119.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -52.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:10,484 INFO L168 Benchmark]: Witness Printer took 6.28 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:10,488 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 650.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.00 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.65 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 382.30 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6119.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -52.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.28 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(n * sizeof(char))] + 2 * us and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 26 SDslu, 14 SDs, 0 SdLazy, 9 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital237 mio100 ax100 hnf99 lsp97 ukn86 mio100 lsp35 div100 bol100 ite100 ukn100 eq197 hnf89 smp100 dnf115 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 208ms VariablesStem: 12 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...