./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncat_malloc.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-15/cstrncat_malloc.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 57af49b15bb2f44ef5afe346e632fe87804775c2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:39:32,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:39:32,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:39:32,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:39:32,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:39:32,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:39:32,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:39:32,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:39:32,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:39:32,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:39:32,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:39:32,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:39:32,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:39:32,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:39:32,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:39:32,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:39:32,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:39:32,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:39:32,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:39:32,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:39:32,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:39:32,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:39:32,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:39:32,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:39:32,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:39:32,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:39:32,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:39:32,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:39:32,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:39:32,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:39:32,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:39:32,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:39:32,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:39:32,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:39:32,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:39:32,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:39:32,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:39:32,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:39:32,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:39:32,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:39:32,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:39:32,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:39:32,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:39:32,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:39:32,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:39:32,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:39:32,758 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:39:32,758 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:39:32,758 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:39:32,759 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:39:32,759 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:39:32,759 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:39:32,760 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:39:32,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:39:32,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:39:32,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:39:32,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:39:32,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:39:32,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:39:32,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:39:32,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:39:32,762 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:39:32,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:39:32,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:39:32,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:39:32,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:39:32,764 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:39:32,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:39:32,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:39:32,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:39:32,765 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:39:32,766 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:39:32,766 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 -> 57af49b15bb2f44ef5afe346e632fe87804775c2 [2020-07-29 01:39:33,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:39:33,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:39:33,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:39:33,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:39:33,131 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:39:33,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncat_malloc.i [2020-07-29 01:39:33,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499b19454/ae1d4ecfc1364e6eae0ffa077974223e/FLAGf9627527f [2020-07-29 01:39:33,777 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:39:33,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncat_malloc.i [2020-07-29 01:39:33,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499b19454/ae1d4ecfc1364e6eae0ffa077974223e/FLAGf9627527f [2020-07-29 01:39:34,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499b19454/ae1d4ecfc1364e6eae0ffa077974223e [2020-07-29 01:39:34,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:39:34,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:39:34,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:39:34,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:39:34,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:39:34,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0f9a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34, skipping insertion in model container [2020-07-29 01:39:34,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:39:34,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:39:34,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:39:34,546 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:39:34,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:39:34,748 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:39:34,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34 WrapperNode [2020-07-29 01:39:34,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:39:34,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:39:34,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:39:34,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:39:34,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:39:34,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:39:34,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:39:34,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:39:34,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (1/1) ... [2020-07-29 01:39:34,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:39:34,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:39:34,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:39:34,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:39:34,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (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 01:39:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:39:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:39:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-29 01:39:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:39:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:39:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:39:35,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:39:35,479 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-29 01:39:35,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:39:35 BoogieIcfgContainer [2020-07-29 01:39:35,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:39:35,485 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:39:35,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:39:35,489 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:39:35,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:39:35,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:39:34" (1/3) ... [2020-07-29 01:39:35,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a19d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:39:35, skipping insertion in model container [2020-07-29 01:39:35,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:39:35,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:39:34" (2/3) ... [2020-07-29 01:39:35,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a19d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:39:35, skipping insertion in model container [2020-07-29 01:39:35,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:39:35,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:39:35" (3/3) ... [2020-07-29 01:39:35,496 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncat_malloc.i [2020-07-29 01:39:35,555 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:39:35,555 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:39:35,556 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:39:35,556 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:39:35,556 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:39:35,557 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:39:35,557 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:39:35,557 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:39:35,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 01:39:35,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:39:35,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:35,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:35,603 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:39:35,603 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:39:35,603 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:39:35,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 01:39:35,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:39:35,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:35,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:35,608 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:39:35,609 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:39:35,616 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 15#L381true assume !(main_~length1~0 < 1); 18#L381-2true assume !(main_~length2~0 < 1); 11#L384-1true assume !(main_~n~0 < 1); 6#L387-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 8#L367-3true [2020-07-29 01:39:35,616 INFO L796 eck$LassoCheckResult]: Loop: 8#L367-3true call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205;cstrncat_#t~post206.base, cstrncat_#t~post206.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post206.base, 1 + cstrncat_#t~post206.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset; 8#L367-3true [2020-07-29 01:39:35,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:35,626 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-07-29 01:39:35,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:39:35,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488476913] [2020-07-29 01:39:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:39:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:39:35,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:35,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2020-07-29 01:39:35,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:39:35,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113530855] [2020-07-29 01:39:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:39:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:39:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:35,865 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2020-07-29 01:39:35,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:39:35,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608092191] [2020-07-29 01:39:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:39:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:39:35,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:39:35,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:39:36,571 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2020-07-29 01:39:36,803 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-29 01:39:36,818 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:39:36,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:39:36,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:39:36,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:39:36,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:39:36,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:36,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:39:36,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:39:36,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat_malloc.i_Iteration1_Lasso [2020-07-29 01:39:36,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:39:36,822 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:39:36,881 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 01:39:36,891 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 01:39:36,898 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 01:39:36,902 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 01:39:36,907 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 01:39:36,911 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 01:39:36,916 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 01:39:36,920 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 01:39:36,925 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 01:39:36,930 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 01:39:36,935 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 01:39:36,939 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 01:39:36,943 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 01:39:36,947 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 01:39:36,951 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 01:39:36,955 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 01:39:36,960 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 01:39:36,964 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 01:39:36,968 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 01:39:36,972 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 01:39:36,977 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 01:39:36,981 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 01:39:37,391 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-07-29 01:39:38,705 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-07-29 01:39:38,854 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:39:38,860 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 01:39:38,871 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 01:39:38,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:38,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:38,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:38,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:38,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:38,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:38,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:38,880 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:38,908 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 01:39:38,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:38,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:38,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:38,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:38,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:39:38,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:39:38,925 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 01:39:38,950 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 01:39:38,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:38,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:38,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:38,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:38,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:38,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:38,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:38,957 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 01:39:38,980 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 01:39:38,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:38,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:38,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:38,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:38,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:38,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:38,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:38,991 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 01:39:39,020 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 01:39:39,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,050 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 01:39:39,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,086 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 01:39:39,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,129 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 01:39:39,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,136 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,159 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 01:39:39,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:39:39,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:39:39,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,226 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 01:39:39,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,284 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 01:39:39,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,293 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:39:39,344 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 01:39:39,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,394 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 01:39:39,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,427 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 01:39:39,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,462 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 01:39:39,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,468 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,491 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 01:39:39,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,496 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,519 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 01:39:39,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,531 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,556 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 01:39:39,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,563 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,589 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 01:39:39,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,593 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,625 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 01:39:39,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,630 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,657 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 01:39:39,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:39:39,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:39:39,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:39:39,662 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:39:39,689 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:39:39,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:39:39,698 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 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,722 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 01:39:39,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:39:39,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:39:39,732 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,754 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 01:39:39,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:39:39,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:39:39,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:39:39,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:39:39,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:39:39,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:39:39,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:39:39,881 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-29 01:39:39,881 INFO L444 ModelExtractionUtils]: 35 out of 43 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:39:39,961 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:39:39,965 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:39:39,965 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:39:39,966 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1, ULTIMATE.start_cstrncat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [] [2020-07-29 01:39:40,053 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-07-29 01:39:40,059 INFO L393 LassoCheck]: Loop: "call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1);" "assume !!(0 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205;cstrncat_#t~post206.base, cstrncat_#t~post206.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post206.base, 1 + cstrncat_#t~post206.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset;" [2020-07-29 01:39:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:39:40,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:39:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:39:40,173 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {28#unseeded} is VALID [2020-07-29 01:39:40,174 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#unseeded} havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; {28#unseeded} is VALID [2020-07-29 01:39:40,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#unseeded} assume !(main_~length1~0 < 1); {28#unseeded} is VALID [2020-07-29 01:39:40,176 INFO L280 TraceCheckUtils]: 3: Hoare triple {28#unseeded} assume !(main_~length2~0 < 1); {28#unseeded} is VALID [2020-07-29 01:39:40,179 INFO L280 TraceCheckUtils]: 4: Hoare triple {28#unseeded} assume !(main_~n~0 < 1); {28#unseeded} is VALID [2020-07-29 01:39:40,183 INFO L280 TraceCheckUtils]: 5: Hoare triple {28#unseeded} assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; {28#unseeded} is VALID [2020-07-29 01:39:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-29 01:39:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:39:40,240 INFO L280 TraceCheckUtils]: 0: Hoare triple {31#(>= oldRank0 (+ (select |#length| ULTIMATE.start_cstrncat_~s~0.base) (* (- 1) ULTIMATE.start_cstrncat_~s~0.offset)))} call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); {106#(and (<= (+ ULTIMATE.start_cstrncat_~s~0.offset 1) (select |#length| ULTIMATE.start_cstrncat_~s~0.base)) (<= (select |#length| ULTIMATE.start_cstrncat_~s~0.base) (+ oldRank0 ULTIMATE.start_cstrncat_~s~0.offset)))} is VALID [2020-07-29 01:39:40,242 INFO L280 TraceCheckUtils]: 1: Hoare triple {106#(and (<= (+ ULTIMATE.start_cstrncat_~s~0.offset 1) (select |#length| ULTIMATE.start_cstrncat_~s~0.base)) (<= (select |#length| ULTIMATE.start_cstrncat_~s~0.base) (+ oldRank0 ULTIMATE.start_cstrncat_~s~0.offset)))} assume !!(0 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205;cstrncat_#t~post206.base, cstrncat_#t~post206.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post206.base, 1 + cstrncat_#t~post206.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset; {86#(or (and (> oldRank0 (+ (select |#length| ULTIMATE.start_cstrncat_~s~0.base) (* (- 1) ULTIMATE.start_cstrncat_~s~0.offset))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:39:40,243 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 01:39:40,255 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:39:40,271 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 01:39:40,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,282 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 01:39:40,284 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-07-29 01:39:40,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 53 states and 76 transitions. Complement of second has 7 states. [2020-07-29 01:39:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 01:39:40,501 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:39:40,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 01:39:40,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:39:40,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:40,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:40,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:39:40,525 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-29 01:39:40,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:40,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:40,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 76 transitions. [2020-07-29 01:39:40,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:39:40,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:40,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:40,534 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 18 states. [2020-07-29 01:39:40,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:39:40,543 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 5 examples of accepted words. [2020-07-29 01:39:40,543 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:39:40,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-29 01:39:40,549 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:39:40,550 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 53 states and 76 transitions. cyclomatic complexity: 27 [2020-07-29 01:39:40,552 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:39:40,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 53 letters. Loop has 53 letters. [2020-07-29 01:39:40,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 53 letters. Loop has 53 letters. [2020-07-29 01:39:40,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 53 letters. Loop has 53 letters. [2020-07-29 01:39:40,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 01:39:40,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 01:39:40,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 18 letters. Loop has 18 letters. [2020-07-29 01:39:40,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:39:40,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:39:40,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:39:40,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 01:39:40,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 01:39:40,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 8 letters. Loop has 3 letters. [2020-07-29 01:39:40,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 01:39:40,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 01:39:40,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 9 letters. Loop has 3 letters. [2020-07-29 01:39:40,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:39:40,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:39:40,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 7 letters. Loop has 3 letters. [2020-07-29 01:39:40,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 2 letters. [2020-07-29 01:39:40,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 2 letters. [2020-07-29 01:39:40,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 7 letters. Loop has 2 letters. [2020-07-29 01:39:40,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:39:40,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:39:40,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:39:40,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:39:40,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 14 letters. Loop has 3 letters. [2020-07-29 01:39:40,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 14 letters. Loop has 3 letters. [2020-07-29 01:39:40,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 14 letters. Loop has 3 letters. [2020-07-29 01:39:40,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 15 letters. Loop has 3 letters. [2020-07-29 01:39:40,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 15 letters. Loop has 3 letters. [2020-07-29 01:39:40,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 15 letters. Loop has 3 letters. [2020-07-29 01:39:40,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 53 states and 76 transitions. cyclomatic complexity: 27 Stem has 13 letters. Loop has 3 letters. [2020-07-29 01:39:40,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,582 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:39:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:39:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-29 01:39:40,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:39:40,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-29 01:39:40,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-29 01:39:40,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:39:40,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 76 transitions. cyclomatic complexity: 27 [2020-07-29 01:39:40,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:39:40,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 20 states and 27 transitions. [2020-07-29 01:39:40,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-29 01:39:40,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-07-29 01:39:40,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2020-07-29 01:39:40,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:39:40,615 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-07-29 01:39:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2020-07-29 01:39:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-29 01:39:40,644 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:39:40,645 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states and 27 transitions. Second operand 19 states. [2020-07-29 01:39:40,645 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states and 27 transitions. Second operand 19 states. [2020-07-29 01:39:40,647 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand 19 states. [2020-07-29 01:39:40,651 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:39:40,654 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2020-07-29 01:39:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-07-29 01:39:40,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:39:40,656 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:39:40,656 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 20 states and 27 transitions. [2020-07-29 01:39:40,656 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 20 states and 27 transitions. [2020-07-29 01:39:40,657 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:39:40,659 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-07-29 01:39:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-07-29 01:39:40,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:39:40,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:39:40,660 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:39:40,660 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:39:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-29 01:39:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-07-29 01:39:40,663 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-07-29 01:39:40,663 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-07-29 01:39:40,663 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:39:40,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-07-29 01:39:40,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:39:40,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:39:40,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:39:40,665 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:39:40,665 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:39:40,665 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 173#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 174#L381 assume !(main_~length1~0 < 1); 183#L381-2 assume !(main_~length2~0 < 1); 189#L384-1 assume !(main_~n~0 < 1); 184#L387-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 185#L367-3 call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 175#L367-1 assume !(0 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205; 176#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 191#L369 assume !cstrncat_#t~short209; 187#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~short209;havoc cstrncat_#t~mem208;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 190#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 180#L369 [2020-07-29 01:39:40,665 INFO L796 eck$LassoCheckResult]: Loop: 180#L369 assume !cstrncat_#t~short209; 186#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~short209;havoc cstrncat_#t~mem208;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 179#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 180#L369 [2020-07-29 01:39:40,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:40,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1662025132, now seen corresponding path program 1 times [2020-07-29 01:39:40,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:39:40,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482830107] [2020-07-29 01:39:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:39:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,736 INFO L280 TraceCheckUtils]: 0: Hoare triple {299#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {299#true} is VALID [2020-07-29 01:39:40,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {299#true} havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; {299#true} is VALID [2020-07-29 01:39:40,737 INFO L280 TraceCheckUtils]: 2: Hoare triple {299#true} assume !(main_~length1~0 < 1); {299#true} is VALID [2020-07-29 01:39:40,737 INFO L280 TraceCheckUtils]: 3: Hoare triple {299#true} assume !(main_~length2~0 < 1); {299#true} is VALID [2020-07-29 01:39:40,737 INFO L280 TraceCheckUtils]: 4: Hoare triple {299#true} assume !(main_~n~0 < 1); {299#true} is VALID [2020-07-29 01:39:40,737 INFO L280 TraceCheckUtils]: 5: Hoare triple {299#true} assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; {299#true} is VALID [2020-07-29 01:39:40,738 INFO L280 TraceCheckUtils]: 6: Hoare triple {299#true} call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); {299#true} is VALID [2020-07-29 01:39:40,738 INFO L280 TraceCheckUtils]: 7: Hoare triple {299#true} assume !(0 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205; {299#true} is VALID [2020-07-29 01:39:40,738 INFO L280 TraceCheckUtils]: 8: Hoare triple {299#true} cstrncat_#t~short209 := 0 != cstrncat_~n; {299#true} is VALID [2020-07-29 01:39:40,739 INFO L280 TraceCheckUtils]: 9: Hoare triple {299#true} assume !cstrncat_#t~short209; {301#(not |ULTIMATE.start_cstrncat_#t~short209|)} is VALID [2020-07-29 01:39:40,745 INFO L280 TraceCheckUtils]: 10: Hoare triple {301#(not |ULTIMATE.start_cstrncat_#t~short209|)} assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~short209;havoc cstrncat_#t~mem208;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; {300#false} is VALID [2020-07-29 01:39:40,746 INFO L280 TraceCheckUtils]: 11: Hoare triple {300#false} cstrncat_#t~short209 := 0 != cstrncat_~n; {300#false} is VALID [2020-07-29 01:39:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:39:40,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482830107] [2020-07-29 01:39:40,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:39:40,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 01:39:40,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396888514] [2020-07-29 01:39:40,753 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-29 01:39:40,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:39:40,753 INFO L82 PathProgramCache]: Analyzing trace with hash 76643, now seen corresponding path program 1 times [2020-07-29 01:39:40,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:39:40,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880060003] [2020-07-29 01:39:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:39:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:39:40,777 INFO L280 TraceCheckUtils]: 0: Hoare triple {302#true} assume !cstrncat_#t~short209; {304#(not |ULTIMATE.start_cstrncat_#t~short209|)} is VALID [2020-07-29 01:39:40,778 INFO L280 TraceCheckUtils]: 1: Hoare triple {304#(not |ULTIMATE.start_cstrncat_#t~short209|)} assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~short209;havoc cstrncat_#t~mem208;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; {303#false} is VALID [2020-07-29 01:39:40,779 INFO L280 TraceCheckUtils]: 2: Hoare triple {303#false} cstrncat_#t~short209 := 0 != cstrncat_~n; {303#false} is VALID [2020-07-29 01:39:40,779 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 01:39:40,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880060003] [2020-07-29 01:39:40,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:39:40,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:39:40,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408355004] [2020-07-29 01:39:40,780 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 01:39:40,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:39:40,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:39:40,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:39:40,785 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-07-29 01:39:40,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:39:40,825 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-07-29 01:39:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:39:40,826 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:39:40,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:39:40,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2020-07-29 01:39:40,833 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:39:40,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-07-29 01:39:40,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:39:40,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:39:40,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:39:40,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:39:40,834 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:39:40,834 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:39:40,834 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:39:40,835 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:39:40,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:39:40,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:39:40,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:39:40,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:39:40 BoogieIcfgContainer [2020-07-29 01:39:40,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:39:40,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:39:40,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:39:40,844 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:39:40,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:39:35" (3/4) ... [2020-07-29 01:39:40,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:39:40,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:39:40,851 INFO L168 Benchmark]: Toolchain (without parser) took 6823.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 290.5 MB). Free memory was 960.2 MB in the beginning and 1.2 GB in the end (delta: -246.3 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,852 INFO L168 Benchmark]: CDTParser took 0.21 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 01:39:40,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.32 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,854 INFO L168 Benchmark]: Boogie Preprocessor took 33.32 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 01:39:40,855 INFO L168 Benchmark]: RCFGBuilder took 629.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,856 INFO L168 Benchmark]: BuchiAutomizer took 5358.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,857 INFO L168 Benchmark]: Witness Printer took 5.61 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:39:40,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 718.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.32 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.32 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 629.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5358.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -121.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.61 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 27 SDslu, 23 SDs, 0 SdLazy, 16 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital206 mio100 ax100 hnf98 lsp97 ukn77 mio100 lsp40 div100 bol100 ite100 ukn100 eq187 hnf88 smp100 dnf252 smp91 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms 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...