./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-libowfat/stpcpy.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-libowfat/stpcpy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 313812bc7f7f65c22e6158e6e59cd01f03c6b884 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:32:01,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:32:01,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:32:01,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:32:01,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:32:01,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:32:01,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:32:01,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:32:01,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:32:01,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:32:01,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:32:01,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:32:01,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:32:01,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:32:01,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:32:01,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:32:01,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:32:01,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:32:01,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:32:01,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:32:01,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:32:01,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:32:01,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:32:01,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:32:01,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:32:01,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:32:01,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:32:01,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:32:01,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:32:01,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:32:01,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:32:01,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:32:01,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:32:01,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:32:01,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:32:01,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:32:01,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:32:01,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:32:01,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:32:01,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:32:01,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:32:01,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:32:01,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:32:01,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:32:01,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:32:01,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:32:01,718 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:32:01,719 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:32:01,720 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:32:01,721 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:32:01,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:32:01,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:32:01,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:32:01,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:32:01,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:32:01,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:32:01,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:32:01,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:32:01,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:32:01,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:32:01,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:32:01,726 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:32:01,726 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:32:01,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:32:01,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:32:01,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:32:01,728 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:32:01,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:32:01,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:32:01,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:32:01,729 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:32:01,730 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:32:01,730 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 313812bc7f7f65c22e6158e6e59cd01f03c6b884 [2019-11-28 20:32:02,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:32:02,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:32:02,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:32:02,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:32:02,067 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:32:02,068 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-28 20:32:02,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cccc822/bc8ed506c5d049969c1472bf8eb49a32/FLAG14831d0e3 [2019-11-28 20:32:02,710 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:32:02,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-28 20:32:02,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cccc822/bc8ed506c5d049969c1472bf8eb49a32/FLAG14831d0e3 [2019-11-28 20:32:03,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13cccc822/bc8ed506c5d049969c1472bf8eb49a32 [2019-11-28 20:32:03,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:32:03,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:32:03,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:32:03,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:32:03,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:32:03,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cdbcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03, skipping insertion in model container [2019-11-28 20:32:03,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:32:03,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:32:03,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:32:03,503 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:32:03,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:32:03,623 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:32:03,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03 WrapperNode [2019-11-28 20:32:03,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:32:03,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:32:03,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:32:03,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:32:03,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:32:03,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:32:03,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:32:03,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:32:03,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (1/1) ... [2019-11-28 20:32:03,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:32:03,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:32:03,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:32:03,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:32:03,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (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 20:32:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:32:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:32:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:32:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:32:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:32:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:32:04,066 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:32:04,066 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 20:32:04,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:04 BoogieIcfgContainer [2019-11-28 20:32:04,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:32:04,069 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:32:04,069 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:32:04,073 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:32:04,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:04,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:32:03" (1/3) ... [2019-11-28 20:32:04,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7782b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:04, skipping insertion in model container [2019-11-28 20:32:04,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:04,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:03" (2/3) ... [2019-11-28 20:32:04,076 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7782b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:04, skipping insertion in model container [2019-11-28 20:32:04,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:04,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:04" (3/3) ... [2019-11-28 20:32:04,078 INFO L371 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2019-11-28 20:32:04,125 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:32:04,125 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:32:04,126 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:32:04,126 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:32:04,127 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:32:04,127 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:32:04,127 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:32:04,127 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:32:04,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-28 20:32:04,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:32:04,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:04,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:04,171 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:32:04,172 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:32:04,172 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:32:04,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-28 20:32:04,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:32:04,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:04,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:04,175 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:32:04,175 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:32:04,183 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2019-11-28 20:32:04,184 INFO L796 eck$LassoCheckResult]: Loop: 6#L507-3true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); 13#L507-1true assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset;havoc stpcpy_#t~mem4;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset; 6#L507-3true [2019-11-28 20:32:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:04,191 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-28 20:32:04,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:04,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399780443] [2019-11-28 20:32:04,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:04,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:04,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2019-11-28 20:32:04,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:04,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350766662] [2019-11-28 20:32:04,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2019-11-28 20:32:04,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:04,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085115349] [2019-11-28 20:32:04,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:04,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:04,585 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-28 20:32:04,975 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-11-28 20:32:05,104 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-11-28 20:32:05,120 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:32:05,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:32:05,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:32:05,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:32:05,122 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:32:05,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:05,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:32:05,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:32:05,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2019-11-28 20:32:05,123 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:32:05,123 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:32:05,164 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 20:32:05,172 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 20:32:05,175 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 20:32:05,180 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 20:32:05,189 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 20:32:05,197 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 20:32:05,552 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-11-28 20:32:05,769 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-11-28 20:32:05,771 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 20:32:05,775 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 20:32:05,778 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 20:32:05,782 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 20:32:05,785 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 20:32:05,790 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 20:32:05,793 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 20:32:05,797 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 20:32:05,800 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 20:32:06,495 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:32:06,501 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 20:32:06,509 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 20:32:06,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:06,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:06,518 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 20:32:06,522 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 20:32:06,537 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 20:32:06,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:06,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:06,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:06,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 3 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:06,572 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 20:32:06,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:06,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:06,578 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 20:32:06,582 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 20:32:06,602 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:06,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:06,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:06,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:06,611 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 20:32:06,628 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 20:32:06,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:06,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:06,647 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 20:32:06,674 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 20:32:06,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:06,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:06,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:06,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:06,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:06,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:06,720 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:32:06,844 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-28 20:32:06,844 INFO L444 ModelExtractionUtils]: 13 out of 46 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:06,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:06,893 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:32:06,894 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:32:06,895 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_stpcpy_~dst.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_stpcpy_~dst.offset Supporting invariants [] [2019-11-28 20:32:06,957 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2019-11-28 20:32:06,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:32:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:07,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:32:07,032 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:07,058 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 20:32:07,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:07,105 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 20:32:07,126 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 20:32:07,128 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-28 20:32:07,211 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 25 transitions. Complement of second has 6 states. [2019-11-28 20:32:07,213 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 20:32:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:32:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-28 20:32:07,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:32:07,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:07,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 20:32:07,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:07,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-28 20:32:07,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:07,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 25 transitions. [2019-11-28 20:32:07,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:32:07,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-28 20:32:07,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:32:07,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:32:07,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:32:07,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:32:07,238 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:07,238 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:07,238 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:07,238 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:32:07,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:32:07,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:32:07,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:32:07,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:32:07 BoogieIcfgContainer [2019-11-28 20:32:07,246 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:32:07,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:32:07,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:32:07,249 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:32:07,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:04" (3/4) ... [2019-11-28 20:32:07,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:32:07,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:32:07,260 INFO L168 Benchmark]: Toolchain (without parser) took 4241.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:07,262 INFO L168 Benchmark]: CDTParser took 0.27 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 20:32:07,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:07,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:32:07,266 INFO L168 Benchmark]: Boogie Preprocessor took 27.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:07,267 INFO L168 Benchmark]: RCFGBuilder took 367.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:07,269 INFO L168 Benchmark]: BuchiAutomizer took 3177.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -62.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:07,276 INFO L168 Benchmark]: Witness Printer took 8.43 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 20:32:07,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 606.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 367.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3177.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -62.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 8.43 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * dst and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf98 lsp96 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms 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...