./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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/cstrcat_diffterm_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 6a26bec8435101bdbb43abb11ad0cdd911d4601c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:36:02,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:36:02,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:36:02,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:36:02,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:36:02,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:36:02,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:36:02,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:36:02,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:36:02,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:36:02,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:36:02,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:36:02,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:36:02,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:36:02,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:36:02,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:36:02,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:36:02,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:36:02,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:36:02,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:36:02,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:36:02,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:36:02,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:36:02,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:36:02,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:36:02,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:36:02,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:36:02,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:36:02,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:36:02,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:36:02,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:36:02,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:36:02,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:36:02,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:36:02,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:36:02,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:36:02,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:36:02,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:36:02,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:36:02,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:36:02,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:36:02,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:36:02,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:36:02,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:36:02,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:36:02,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:36:02,310 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:36:02,310 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:36:02,311 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:36:02,312 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:36:02,312 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:36:02,312 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:36:02,312 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:36:02,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:36:02,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:36:02,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:36:02,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:36:02,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:36:02,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:36:02,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:36:02,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:36:02,316 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:36:02,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:36:02,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:36:02,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:36:02,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:36:02,318 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:36:02,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:36:02,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:36:02,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:36:02,319 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:36:02,320 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:36:02,321 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 -> 6a26bec8435101bdbb43abb11ad0cdd911d4601c [2019-11-28 20:36:02,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:36:02,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:36:02,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:36:02,702 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:36:02,703 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:36:02,704 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i [2019-11-28 20:36:02,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81809bd86/eeb95448958d4f3aaf73c6479ed48c35/FLAG098589296 [2019-11-28 20:36:03,281 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:36:03,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i [2019-11-28 20:36:03,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81809bd86/eeb95448958d4f3aaf73c6479ed48c35/FLAG098589296 [2019-11-28 20:36:03,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81809bd86/eeb95448958d4f3aaf73c6479ed48c35 [2019-11-28 20:36:03,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:36:03,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:36:03,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:03,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:36:03,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:36:03,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:03" (1/1) ... [2019-11-28 20:36:03,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aed937a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:03, skipping insertion in model container [2019-11-28 20:36:03,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:03" (1/1) ... [2019-11-28 20:36:03,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:36:03,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:36:04,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:04,193 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:36:04,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:04,346 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:36:04,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04 WrapperNode [2019-11-28 20:36:04,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:04,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:04,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:36:04,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:36:04,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:04,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:36:04,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:36:04,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:36:04,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (1/1) ... [2019-11-28 20:36:04,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:36:04,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:36:04,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:36:04,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:36:04,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (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 20:36:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:36:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:36:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:36:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:36:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:36:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:36:04,759 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:36:04,759 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:36:04,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:04 BoogieIcfgContainer [2019-11-28 20:36:04,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:36:04,763 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:36:04,763 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:36:04,769 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:36:04,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:04,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:36:03" (1/3) ... [2019-11-28 20:36:04,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b72121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:04, skipping insertion in model container [2019-11-28 20:36:04,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:04,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:04" (2/3) ... [2019-11-28 20:36:04,773 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b72121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:04, skipping insertion in model container [2019-11-28 20:36:04,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:04,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:04" (3/3) ... [2019-11-28 20:36:04,776 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat_diffterm_alloca.i [2019-11-28 20:36:04,839 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:36:04,840 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:36:04,840 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:36:04,840 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:36:04,841 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:36:04,841 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:36:04,841 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:36:04,841 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:36:04,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 20:36:04,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 20:36:04,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:04,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:04,912 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:04,912 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:36:04,912 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:36:04,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 20:36:04,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 20:36:04,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:04,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:04,915 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:04,915 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:36:04,922 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet210, 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_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 9#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2019-11-28 20:36:04,922 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(49 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, 1 + cstrcat_#t~post206.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2019-11-28 20:36:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:04,928 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-28 20:36:04,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:04,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403164339] [2019-11-28 20:36:04,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,104 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-11-28 20:36:05,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:05,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050803191] [2019-11-28 20:36:05,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:05,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2019-11-28 20:36:05,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:05,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226160568] [2019-11-28 20:36:05,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:05,225 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:05,776 WARN L192 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2019-11-28 20:36:05,934 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-11-28 20:36:05,948 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:05,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:05,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:05,950 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:05,950 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:05,950 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:05,950 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:05,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:05,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat_diffterm_alloca.i_Iteration1_Lasso [2019-11-28 20:36:05,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:05,951 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:05,989 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 20:36:05,996 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 20:36:05,999 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 20:36:06,004 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 20:36:06,008 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 20:36:06,339 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-11-28 20:36:06,413 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 20:36:06,417 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 20:36:06,420 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 20:36:06,422 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 20:36:06,425 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 20:36:06,429 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 20:36:06,433 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 20:36:06,435 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 20:36:06,437 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 20:36:06,440 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 20:36:06,442 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 20:36:06,445 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 20:36:06,448 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 20:36:06,450 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 20:36:07,017 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:07,023 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) [2019-11-28 20:36:07,032 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 20:36:07,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:07,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:07,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,045 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 20:36:07,059 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 20:36:07,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:07,066 INFO L402 nArgumentSynthesizer]: A total of 2 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 20:36:07,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:07,084 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 20:36:07,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:07,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:07,088 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 20:36:07,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,099 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 20:36:07,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:07,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:07,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:07,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,139 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 20:36:07,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:07,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:07,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,180 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 20:36:07,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:07,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:07,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe 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 20:36:07,209 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 20:36:07,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:07,225 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 20:36:07,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,246 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 20:36:07,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:07,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:07,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:07,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:07,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:07,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:07,291 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:07,471 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-28 20:36:07,471 INFO L444 ModelExtractionUtils]: 38 out of 49 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:07,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:07,504 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:36:07,505 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:07,506 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc214.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc214.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-11-28 20:36:07,542 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2019-11-28 20:36:07,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:36:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:07,610 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:07,612 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:07,627 WARN L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:36:07,627 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:07,650 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 20:36:07,668 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 20:36:07,670 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-28 20:36:07,755 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 8 states. [2019-11-28 20:36:07,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2019-11-28 20:36:07,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 20:36:07,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:07,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-28 20:36:07,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:07,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 20:36:07,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:07,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-28 20:36:07,767 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:07,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-28 20:36:07,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:36:07,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:36:07,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:36:07,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:36:07,773 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:07,774 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:07,774 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:07,774 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:36:07,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:36:07,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:07,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:36:07,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:36:07 BoogieIcfgContainer [2019-11-28 20:36:07,782 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:36:07,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:36:07,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:36:07,783 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:36:07,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:04" (3/4) ... [2019-11-28 20:36:07,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:36:07,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:36:07,790 INFO L168 Benchmark]: Toolchain (without parser) took 4203.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:07,790 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:07,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:07,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:07,793 INFO L168 Benchmark]: Boogie Preprocessor took 32.55 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:07,794 INFO L168 Benchmark]: RCFGBuilder took 333.27 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:07,795 INFO L168 Benchmark]: BuchiAutomizer took 3018.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:07,795 INFO L168 Benchmark]: Witness Printer took 5.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:07,800 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 760.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.55 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 333.27 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3018.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 17 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax100 hnf98 lsp96 ukn78 mio100 lsp50 div100 bol100 ite100 ukn100 eq188 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...