./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c1eb142aa621a3b7c962754bdbb3857cadaf1720 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:36:34,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:36:34,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:36:34,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:36:34,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:36:34,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:36:34,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:36:34,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:36:34,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:36:34,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:36:34,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:36:34,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:36:34,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:36:34,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:36:34,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:36:34,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:36:34,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:36:34,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:36:34,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:36:34,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:36:34,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:36:34,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:36:34,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:36:34,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:36:34,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:36:34,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:36:34,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:36:34,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:36:34,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:36:34,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:36:34,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:36:34,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:36:34,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:36:34,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:36:34,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:36:34,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:36:34,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:36:34,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:36:34,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:36:34,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:36:34,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:36:34,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:36:34,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:36:34,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:36:34,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:36:34,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:36:34,148 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:36:34,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:36:34,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:36:34,149 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:36:34,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:36:34,150 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:36:34,150 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:36:34,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:36:34,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:36:34,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:36:34,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:36:34,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:36:34,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:36:34,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:36:34,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:36:34,152 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:36:34,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:36:34,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:36:34,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:36:34,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:36:34,154 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:36:34,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:36:34,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:36:34,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:36:34,155 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:36:34,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:36:34,156 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 -> c1eb142aa621a3b7c962754bdbb3857cadaf1720 [2020-07-29 01:36:34,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:36:34,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:36:34,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:36:34,522 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:36:34,527 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:36:34,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2020-07-29 01:36:34,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c061296/3f2bff1bcb124e8e8458e932521e4b8d/FLAG2977fc083 [2020-07-29 01:36:35,104 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:36:35,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2020-07-29 01:36:35,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c061296/3f2bff1bcb124e8e8458e932521e4b8d/FLAG2977fc083 [2020-07-29 01:36:35,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c061296/3f2bff1bcb124e8e8458e932521e4b8d [2020-07-29 01:36:35,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:36:35,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:36:35,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:35,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:36:35,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:36:35,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:35" (1/1) ... [2020-07-29 01:36:35,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac7a739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:35, skipping insertion in model container [2020-07-29 01:36:35,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:35" (1/1) ... [2020-07-29 01:36:35,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:36:35,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:36:35,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:35,957 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:36:35,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:36,052 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:36:36,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36 WrapperNode [2020-07-29 01:36:36,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:36,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:36,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:36:36,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:36:36,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:36,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:36:36,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:36:36,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:36:36,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... [2020-07-29 01:36:36,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:36:36,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:36:36,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:36:36,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:36:36,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:36:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:36:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 01:36:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:36:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:36:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:36:36,552 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:36:36,552 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-29 01:36:36,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:36 BoogieIcfgContainer [2020-07-29 01:36:36,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:36:36,557 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:36:36,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:36:36,561 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:36:36,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:36,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:36:35" (1/3) ... [2020-07-29 01:36:36,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f8fac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:36, skipping insertion in model container [2020-07-29 01:36:36,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:36,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:36" (2/3) ... [2020-07-29 01:36:36,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f8fac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:36, skipping insertion in model container [2020-07-29 01:36:36,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:36,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:36" (3/3) ... [2020-07-29 01:36:36,566 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-2.i [2020-07-29 01:36:36,624 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:36:36,625 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:36:36,625 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:36:36,625 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:36:36,626 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:36:36,626 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:36:36,626 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:36:36,626 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:36:36,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:36,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:36,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:36,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:36,666 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:36,666 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:36:36,666 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:36:36,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:36,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:36,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:36,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:36,670 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:36,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:36:36,677 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~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 3#L558true assume !(main_~length1~0 < 1); 7#L558-2true assume !(main_~length2~0 < 1); 13#L561-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 4#L550-3true [2020-07-29 01:36:36,677 INFO L796 eck$LassoCheckResult]: Loop: 4#L550-3true call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 15#L550-1true assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 11#L551true assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 4#L550-3true [2020-07-29 01:36:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:36,682 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-07-29 01:36:36,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:36,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171963968] [2020-07-29 01:36:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:36,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:36,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:36,862 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:36,863 INFO L82 PathProgramCache]: Analyzing trace with hash 49816, now seen corresponding path program 1 times [2020-07-29 01:36:36,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:36,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417662965] [2020-07-29 01:36:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:36,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:36,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:36,898 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 180429619, now seen corresponding path program 1 times [2020-07-29 01:36:36,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:36,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352583728] [2020-07-29 01:36:36,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:36,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:37,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:37,054 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:37,215 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-07-29 01:36:37,632 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-07-29 01:36:37,806 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-29 01:36:37,825 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:36:37,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:36:37,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:36:37,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:36:37,827 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:36:37,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:37,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:36:37,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:36:37,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-2.i_Iteration1_Lasso [2020-07-29 01:36:37,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:36:37,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:36:37,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:37,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:37,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:37,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:37,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,318 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-07-29 01:36:38,502 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-07-29 01:36:38,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:38,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:39,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:36:39,609 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:39,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:39,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:39,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:39,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:39,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:39,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:39,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:39,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:36:39,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:39,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:39,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:39,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:39,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:39,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:39,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:39,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:39,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:39,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:39,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:39,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:39,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:39,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:39,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:39,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:39,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:39,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:39,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:39,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:39,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:39,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:39,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:39,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:39,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:39,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:39,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:39,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:39,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:39,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:36:39,903 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-07-29 01:36:39,904 INFO L444 ModelExtractionUtils]: 27 out of 46 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:36:39,909 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:39,947 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:36:39,948 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:36:39,949 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1) = -1*ULTIMATE.start_cstrcmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1 Supporting invariants [] [2020-07-29 01:36:40,110 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-07-29 01:36:40,117 INFO L393 LassoCheck]: Loop: "call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1);" "assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1);" "assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6;" [2020-07-29 01:36:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:40,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:36:40,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:40,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-29 01:36:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:40,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:40,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {23#unseeded} is VALID [2020-07-29 01:36:40,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#unseeded} havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; {23#unseeded} is VALID [2020-07-29 01:36:40,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {23#unseeded} assume !(main_~length1~0 < 1); {23#unseeded} is VALID [2020-07-29 01:36:40,233 INFO L280 TraceCheckUtils]: 3: Hoare triple {23#unseeded} assume !(main_~length2~0 < 1); {23#unseeded} is VALID [2020-07-29 01:36:40,236 INFO L280 TraceCheckUtils]: 4: Hoare triple {23#unseeded} call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; {117#(and (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|) unseeded)} is VALID [2020-07-29 01:36:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:40,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 01:36:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:40,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:40,418 INFO L280 TraceCheckUtils]: 0: Hoare triple {118#(and (>= oldRank0 (+ (* (- 1) ULTIMATE.start_cstrcmp_~s2.offset) (select |#length| |ULTIMATE.start_main_#t~malloc13.base|))) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|))} call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); {138#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ ULTIMATE.start_cstrcmp_~s2.offset oldRank0)) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ oldRank0 (select |#length| ULTIMATE.start_cstrcmp_~s2.base))))} is VALID [2020-07-29 01:36:40,420 INFO L280 TraceCheckUtils]: 1: Hoare triple {138#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ ULTIMATE.start_cstrcmp_~s2.offset oldRank0)) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ oldRank0 (select |#length| ULTIMATE.start_cstrcmp_~s2.base))))} assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); {138#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ ULTIMATE.start_cstrcmp_~s2.offset oldRank0)) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ oldRank0 (select |#length| ULTIMATE.start_cstrcmp_~s2.base))))} is VALID [2020-07-29 01:36:40,421 INFO L280 TraceCheckUtils]: 2: Hoare triple {138#(and (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ ULTIMATE.start_cstrcmp_~s2.offset oldRank0)) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|) (<= (+ (select |#length| |ULTIMATE.start_main_#t~malloc13.base|) 1) (+ oldRank0 (select |#length| ULTIMATE.start_cstrcmp_~s2.base))))} assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; {120#(and (or (and (> oldRank0 (+ (* (- 1) ULTIMATE.start_cstrcmp_~s2.offset) (select |#length| |ULTIMATE.start_main_#t~malloc13.base|))) (>= oldRank0 0)) unseeded) (= ULTIMATE.start_cstrcmp_~s2.base |ULTIMATE.start_main_#t~malloc13.base|))} is VALID [2020-07-29 01:36:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:36:40,432 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:36:40,452 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:36:40,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,463 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 01:36:40,465 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-07-29 01:36:40,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 24 states and 28 transitions. Complement of second has 6 states. [2020-07-29 01:36:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:36:40,581 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:40,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-07-29 01:36:40,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:40,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:40,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:40,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:36:40,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:40,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:40,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:40,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2020-07-29 01:36:40,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:40,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:40,592 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 13 states. [2020-07-29 01:36:40,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:36:40,595 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:36:40,595 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:36:40,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:40,598 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:36:40,598 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 24 states and 28 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:40,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:40,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:40,599 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:36:40,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 24 letters. Loop has 24 letters. [2020-07-29 01:36:40,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 24 letters. Loop has 24 letters. [2020-07-29 01:36:40,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 24 letters. Loop has 24 letters. [2020-07-29 01:36:40,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:40,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:40,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 13 letters. Loop has 13 letters. [2020-07-29 01:36:40,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:40,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:40,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:40,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:40,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:40,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:36:40,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:40,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:40,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 6 letters. Loop has 3 letters. [2020-07-29 01:36:40,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:40,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:40,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:40,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 28 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:36:40,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,611 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:36:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-29 01:36:40,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:36:40,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-29 01:36:40,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-29 01:36:40,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:40,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:40,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:40,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-07-29 01:36:40,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:36:40,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:36:40,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:36:40,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:36:40,625 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:40,625 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:40,626 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:40,626 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:36:40,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:36:40,626 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:40,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:40,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:36:40 BoogieIcfgContainer [2020-07-29 01:36:40,638 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:36:40,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:36:40,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:36:40,639 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:36:40,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:36" (3/4) ... [2020-07-29 01:36:40,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:36:40,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:36:40,644 INFO L168 Benchmark]: Toolchain (without parser) took 5165.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 961.6 MB in the beginning and 899.3 MB in the end (delta: 62.2 MB). Peak memory consumption was 266.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:40,645 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:40,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:40,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:40,647 INFO L168 Benchmark]: Boogie Preprocessor took 32.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:40,648 INFO L168 Benchmark]: RCFGBuilder took 419.60 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:40,649 INFO L168 Benchmark]: BuchiAutomizer took 4081.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 176.7 MB). Peak memory consumption was 248.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:40,650 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 1.2 GB. Free memory is still 899.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:40,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 571.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 419.60 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4081.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 176.7 MB). Peak memory consumption was 248.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.00 ms. Allocated memory is still 1.2 GB. Free memory is still 899.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital209 mio100 ax108 hnf99 lsp89 ukn86 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms 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...