./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- 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/array-memsafety/rec_strlen-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 1915ee2ae984f6ece38fc0dcbac99e0ba37faddf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:26:27,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:26:27,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:26:27,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:26:27,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:26:27,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:26:27,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:26:27,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:26:27,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:26:27,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:26:27,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:26:27,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:26:27,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:26:27,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:26:27,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:26:27,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:26:27,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:26:27,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:26:27,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:26:27,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:26:27,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:26:27,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:26:27,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:26:27,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:26:27,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:26:27,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:26:27,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:26:27,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:26:27,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:26:27,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:26:27,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:26:27,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:26:27,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:26:27,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:26:27,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:26:27,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:26:27,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:26:27,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:26:27,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:26:27,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:26:27,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:26:27,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:26:27,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:26:27,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:26:27,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:26:27,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:26:27,774 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:26:27,775 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:26:27,775 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:26:27,775 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:26:27,775 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:26:27,776 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:26:27,776 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:26:27,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:26:27,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:26:27,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:26:27,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:26:27,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:26:27,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:26:27,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:26:27,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:26:27,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:26:27,779 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:26:27,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:26:27,779 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:26:27,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:26:27,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:26:27,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:26:27,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:26:27,781 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:26:27,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:26:27,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:26:27,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:26:27,782 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:26:27,783 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:26:27,783 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1915ee2ae984f6ece38fc0dcbac99e0ba37faddf [2020-07-29 03:26:28,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:26:28,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:26:28,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:26:28,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:26:28,105 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:26:28,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2020-07-29 03:26:28,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf952fb5/65e340b7622a45e6973a7b81662d63e4/FLAG0815f3b57 [2020-07-29 03:26:28,729 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:26:28,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2020-07-29 03:26:28,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf952fb5/65e340b7622a45e6973a7b81662d63e4/FLAG0815f3b57 [2020-07-29 03:26:28,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf952fb5/65e340b7622a45e6973a7b81662d63e4 [2020-07-29 03:26:28,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:26:28,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:26:28,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:26:28,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:26:28,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:26:28,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:26:28" (1/1) ... [2020-07-29 03:26:28,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f77e2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:28, skipping insertion in model container [2020-07-29 03:26:28,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:26:28" (1/1) ... [2020-07-29 03:26:28,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:26:29,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:26:29,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:26:29,479 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:26:29,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:26:29,611 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:26:29,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29 WrapperNode [2020-07-29 03:26:29,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:26:29,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:26:29,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:26:29,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:26:29,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:26:29,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:26:29,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:26:29,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:26:29,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (1/1) ... [2020-07-29 03:26:29,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:26:29,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:26:29,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:26:29,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:26:29,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (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 03:26:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 03:26:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 03:26:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 03:26:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 03:26:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2020-07-29 03:26:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2020-07-29 03:26:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:26:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:26:30,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:26:30,122 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 03:26:30,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:26:30 BoogieIcfgContainer [2020-07-29 03:26:30,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:26:30,127 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:26:30,127 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:26:30,132 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:26:30,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:30,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:26:28" (1/3) ... [2020-07-29 03:26:30,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23dce0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:26:30, skipping insertion in model container [2020-07-29 03:26:30,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:30,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:29" (2/3) ... [2020-07-29 03:26:30,136 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23dce0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:26:30, skipping insertion in model container [2020-07-29 03:26:30,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:30,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:26:30" (3/3) ... [2020-07-29 03:26:30,138 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-1.i [2020-07-29 03:26:30,214 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:26:30,214 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:26:30,215 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:26:30,215 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:26:30,215 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:26:30,215 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:26:30,216 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:26:30,216 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:26:30,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 03:26:30,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 03:26:30,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:30,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:30,292 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-29 03:26:30,292 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 03:26:30,292 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:26:30,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 03:26:30,296 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 03:26:30,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:30,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:30,297 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-29 03:26:30,297 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 03:26:30,304 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 11#L522true assume !(main_~length1~0 < 1); 16#L522-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L527-3true [2020-07-29 03:26:30,304 INFO L796 eck$LassoCheckResult]: Loop: 5#L527-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4#L527-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L527-3true [2020-07-29 03:26:30,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:30,312 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-07-29 03:26:30,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:30,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456203808] [2020-07-29 03:26:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:30,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-07-29 03:26:30,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:30,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317338106] [2020-07-29 03:26:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:30,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:30,515 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-07-29 03:26:30,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:30,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337990581] [2020-07-29 03:26:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:30,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:30,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:30,850 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:26:30,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:26:30,852 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:26:30,852 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:26:30,852 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 03:26:30,852 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:30,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:26:30,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:26:30,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration1_Lasso [2020-07-29 03:26:30,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:26:30,854 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:26:30,911 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 03:26:30,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:30,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:30,932 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 03:26:30,940 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 03:26:30,947 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 03:26:30,953 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 03:26:30,959 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 03:26:30,966 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 03:26:30,971 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 03:26:31,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:26:31,680 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 03:26:31,687 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 03:26:31,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:31,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:31,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:31,698 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 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 03:26:31,746 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 03:26:31,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:31,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:31,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:31,756 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) [2020-07-29 03:26:31,799 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 03:26:31,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:31,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:31,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:31,810 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) [2020-07-29 03:26:31,853 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 03:26:31,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:31,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:31,867 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) [2020-07-29 03:26:31,908 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 03:26:31,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:31,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:31,923 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) [2020-07-29 03:26:31,962 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 03:26:31,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:31,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:31,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:31,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:31,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:31,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:31,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:26:32,019 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 03:26:32,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:32,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:32,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:32,030 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) [2020-07-29 03:26:32,065 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 03:26:32,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:32,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:32,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:32,076 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 03:26:32,126 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 03:26:32,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:32,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:32,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:32,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:32,132 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) [2020-07-29 03:26:32,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:32,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:32,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:32,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:32,208 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 03:26:32,259 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 03:26:32,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:32,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:32,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:32,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:32,265 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 03:26:32,312 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 03:26:32,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:32,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:32,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:32,316 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 03:26:32,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:32,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:32,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 03:26:32,380 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-07-29 03:26:32,381 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. 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) [2020-07-29 03:26:32,389 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:32,393 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 03:26:32,394 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 03:26:32,395 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-29 03:26:32,454 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-07-29 03:26:32,461 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7;" "main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6;" [2020-07-29 03:26:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:32,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 03:26:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:32,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:32,570 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 03:26:32,571 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#unseeded} havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; {28#unseeded} is VALID [2020-07-29 03:26:32,572 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#unseeded} assume !(main_~length1~0 < 1); {28#unseeded} is VALID [2020-07-29 03:26:32,573 INFO L280 TraceCheckUtils]: 3: Hoare triple {28#unseeded} call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; {28#unseeded} is VALID [2020-07-29 03:26:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:32,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 03:26:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:32,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:32,611 INFO L280 TraceCheckUtils]: 0: Hoare triple {31#(>= oldRank0 (+ ULTIMATE.start_main_~length1~0 (* (- 1) ULTIMATE.start_main_~i~0)))} assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; {70#(and (<= ULTIMATE.start_main_~length1~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~length1~0))} is VALID [2020-07-29 03:26:32,613 INFO L280 TraceCheckUtils]: 1: Hoare triple {70#(and (<= ULTIMATE.start_main_~length1~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~length1~0))} main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; {56#(or (and (> oldRank0 (+ ULTIMATE.start_main_~length1~0 (* (- 1) ULTIMATE.start_main_~i~0))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 03:26:32,613 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 03:26:32,624 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:26:32,637 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:26:32,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,647 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 03:26:32,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-07-29 03:26:32,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 34 states and 43 transitions. Complement of second has 9 states. [2020-07-29 03:26:32,750 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 03:26:32,750 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:32,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 03:26:32,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 03:26:32,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:32,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:32,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 03:26:32,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 03:26:32,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:32,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:32,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2020-07-29 03:26:32,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 03:26:32,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:32,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:32,767 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 18 states. [2020-07-29 03:26:32,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 03:26:32,772 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 5 examples of accepted words. [2020-07-29 03:26:32,772 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 03:26:32,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 03:26:32,776 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 03:26:32,776 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 34 states and 43 transitions. cyclomatic complexity: 12 [2020-07-29 03:26:32,777 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 03:26:32,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 34 letters. Loop has 34 letters. [2020-07-29 03:26:32,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 34 letters. Loop has 34 letters. [2020-07-29 03:26:32,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 34 letters. Loop has 34 letters. [2020-07-29 03:26:32,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 03:26:32,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 03:26:32,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 18 letters. Loop has 18 letters. [2020-07-29 03:26:32,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:32,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:32,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:32,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:32,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:32,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:32,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 03:26:32,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 03:26:32,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 2 letters. [2020-07-29 03:26:32,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 2 letters. Loop has 4 letters. [2020-07-29 03:26:32,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 4 letters. [2020-07-29 03:26:32,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 4 letters. [2020-07-29 03:26:32,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:32,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 7 letters. Loop has 3 letters. [2020-07-29 03:26:32,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 8 letters. Loop has 3 letters. [2020-07-29 03:26:32,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 43 transitions. cyclomatic complexity: 12 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:32,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,837 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 03:26:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2020-07-29 03:26:32,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-29 03:26:32,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-29 03:26:32,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-29 03:26:32,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:32,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. cyclomatic complexity: 12 [2020-07-29 03:26:32,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 03:26:32,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 15 transitions. [2020-07-29 03:26:32,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-29 03:26:32,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-29 03:26:32,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-07-29 03:26:32,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:26:32,897 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-29 03:26:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-07-29 03:26:32,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-29 03:26:32,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:26:32,927 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:32,927 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:32,930 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:32,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:32,935 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2020-07-29 03:26:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-07-29 03:26:32,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:32,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:32,937 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states and 15 transitions. [2020-07-29 03:26:32,937 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states and 15 transitions. [2020-07-29 03:26:32,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:32,938 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2020-07-29 03:26:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-07-29 03:26:32,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:32,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:32,939 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:26:32,940 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:26:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-29 03:26:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-07-29 03:26:32,943 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-29 03:26:32,943 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-07-29 03:26:32,943 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:26:32,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-07-29 03:26:32,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 03:26:32,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:32,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:32,945 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:26:32,945 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 03:26:32,946 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 120#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 121#L522 assume !(main_~length1~0 < 1); 127#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 128#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 131#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 123#L533 call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 124#strlen_recENTRY [2020-07-29 03:26:32,946 INFO L796 eck$LassoCheckResult]: Loop: 124#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 125#L515 assume !(0 == #t~mem2);havoc #t~mem2; 122#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 124#strlen_recENTRY [2020-07-29 03:26:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:32,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1806816568, now seen corresponding path program 1 times [2020-07-29 03:26:32,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:32,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776331362] [2020-07-29 03:26:32,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:32,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:32,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:32,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:32,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:32,983 INFO L82 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 1 times [2020-07-29 03:26:32,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:32,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995468510] [2020-07-29 03:26:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:32,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:32,995 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:32,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1952714549, now seen corresponding path program 1 times [2020-07-29 03:26:32,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:32,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715461574] [2020-07-29 03:26:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:33,288 INFO L280 TraceCheckUtils]: 0: Hoare triple {163#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {163#true} is VALID [2020-07-29 03:26:33,288 INFO L280 TraceCheckUtils]: 1: Hoare triple {163#true} havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; {163#true} is VALID [2020-07-29 03:26:33,289 INFO L280 TraceCheckUtils]: 2: Hoare triple {163#true} assume !(main_~length1~0 < 1); {165#(<= 1 ULTIMATE.start_main_~length1~0)} is VALID [2020-07-29 03:26:33,291 INFO L280 TraceCheckUtils]: 3: Hoare triple {165#(<= 1 ULTIMATE.start_main_~length1~0)} call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; {166#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (or (= 0 ULTIMATE.start_main_~i~0) (= 1 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0))) (< 0 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0)))} is VALID [2020-07-29 03:26:33,292 INFO L280 TraceCheckUtils]: 4: Hoare triple {166#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (or (= 0 ULTIMATE.start_main_~i~0) (= 1 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0))) (< 0 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0)))} assume !(main_~i~0 < main_~length1~0 - 1); {167#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (< 0 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0)) (<= ULTIMATE.start_main_~length1~0 1))} is VALID [2020-07-29 03:26:33,294 INFO L280 TraceCheckUtils]: 5: Hoare triple {167#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (< 0 (+ ULTIMATE.start_main_~nondetString1~0.offset ULTIMATE.start_main_~length1~0)) (<= ULTIMATE.start_main_~length1~0 1))} call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); {168#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (= 0 (select (select |#memory_int| ULTIMATE.start_main_~nondetString1~0.base) ULTIMATE.start_main_~nondetString1~0.offset)))} is VALID [2020-07-29 03:26:33,296 INFO L263 TraceCheckUtils]: 6: Hoare triple {168#(and (= 0 ULTIMATE.start_main_~nondetString1~0.offset) (= 0 (select (select |#memory_int| ULTIMATE.start_main_~nondetString1~0.base) ULTIMATE.start_main_~nondetString1~0.offset)))} call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset); {169#(= 0 (select (select |#memory_int| |strlen_rec_#in~p.base|) |strlen_rec_#in~p.offset|))} is VALID [2020-07-29 03:26:33,297 INFO L280 TraceCheckUtils]: 7: Hoare triple {169#(= 0 (select (select |#memory_int| |strlen_rec_#in~p.base|) |strlen_rec_#in~p.offset|))} ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); {170#(= 0 |strlen_rec_#t~mem2|)} is VALID [2020-07-29 03:26:33,298 INFO L280 TraceCheckUtils]: 8: Hoare triple {170#(= 0 |strlen_rec_#t~mem2|)} assume !(0 == #t~mem2);havoc #t~mem2; {164#false} is VALID [2020-07-29 03:26:33,298 INFO L263 TraceCheckUtils]: 9: Hoare triple {164#false} call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset); {164#false} is VALID [2020-07-29 03:26:33,299 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 03:26:33,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715461574] [2020-07-29 03:26:33,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:26:33,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-29 03:26:33,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415682748] [2020-07-29 03:26:33,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:26:33,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-29 03:26:33,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-29 03:26:33,435 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 8 states. [2020-07-29 03:26:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:33,630 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-07-29 03:26:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 03:26:33,630 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-29 03:26:33,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:26:33,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2020-07-29 03:26:33,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 03:26:33,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 15 transitions. [2020-07-29 03:26:33,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-29 03:26:33,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-29 03:26:33,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2020-07-29 03:26:33,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:26:33,649 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-07-29 03:26:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2020-07-29 03:26:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-29 03:26:33,655 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:26:33,656 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:33,656 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:33,656 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 12 states. [2020-07-29 03:26:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:33,658 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-07-29 03:26:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-07-29 03:26:33,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:33,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:33,659 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states and 15 transitions. [2020-07-29 03:26:33,659 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states and 15 transitions. [2020-07-29 03:26:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:33,662 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-07-29 03:26:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-07-29 03:26:33,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:33,663 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:33,663 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:26:33,663 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:26:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-29 03:26:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-07-29 03:26:33,665 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-29 03:26:33,665 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-29 03:26:33,666 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 03:26:33,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2020-07-29 03:26:33,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 03:26:33,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:33,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:33,669 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:26:33,669 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 03:26:33,669 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 192#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 193#L522 assume !(main_~length1~0 < 1); 199#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 200#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 201#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 202#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 203#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 195#L533 call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 196#strlen_recENTRY [2020-07-29 03:26:33,670 INFO L796 eck$LassoCheckResult]: Loop: 196#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 198#L515 assume !(0 == #t~mem2);havoc #t~mem2; 194#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 196#strlen_recENTRY [2020-07-29 03:26:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:33,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1185641750, now seen corresponding path program 1 times [2020-07-29 03:26:33,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:33,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842196876] [2020-07-29 03:26:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,705 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:33,706 INFO L82 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 2 times [2020-07-29 03:26:33,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:33,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853428204] [2020-07-29 03:26:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:33,718 INFO L82 PathProgramCache]: Analyzing trace with hash -357639123, now seen corresponding path program 1 times [2020-07-29 03:26:33,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:33,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229596759] [2020-07-29 03:26:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:33,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:33,760 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:34,134 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-07-29 03:26:34,725 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:26:34,725 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:26:34,725 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:26:34,725 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:26:34,725 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 03:26:34,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:34,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:26:34,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:26:34,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration3_Lasso [2020-07-29 03:26:34,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:26:34,726 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:26:34,750 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 03:26:34,756 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 03:26:34,760 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 03:26:34,764 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 03:26:34,768 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 03:26:34,772 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 03:26:34,777 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 03:26:34,781 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 03:26:34,785 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 03:26:34,790 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 03:26:34,794 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 03:26:34,800 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 03:26:34,804 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 03:26:34,809 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 03:26:34,813 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 03:26:34,817 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 03:26:34,821 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 03:26:34,825 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 03:26:34,830 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 03:26:34,834 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 03:26:34,838 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 03:26:34,842 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 03:26:34,846 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 03:26:34,909 WARN L257 bleTransFormulaUtils]: 2 quantified variables [2020-07-29 03:26:34,909 WARN L257 bleTransFormulaUtils]: 1 quantified variables [2020-07-29 03:26:34,913 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 03:26:34,917 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 03:26:34,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:34,926 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 03:26:34,929 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 03:26:35,492 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:26:35,493 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-07-29 03:26:35,510 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 03:26:35,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,515 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) [2020-07-29 03:26:35,560 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 03:26:35,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,566 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 03:26:35,607 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 03:26:35,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,612 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 03:26:35,652 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 03:26:35,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,657 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) [2020-07-29 03:26:35,708 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 03:26:35,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:35,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:35,718 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 03:26:35,745 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 03:26:35,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,749 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 03:26:35,779 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 03:26:35,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,783 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 03:26:35,812 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 03:26:35,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,817 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 03:26:35,839 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 03:26:35,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,845 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 03:26:35,868 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 03:26:35,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:35,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:35,879 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 03:26:35,905 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 03:26:35,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,909 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 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,933 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 03:26:35,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,937 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 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,961 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 03:26:35,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,966 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 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:35,989 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 03:26:35,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:35,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:35,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:35,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:35,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:35,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:35,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:35,996 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 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,019 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 03:26:36,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:36,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:36,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:36,024 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,047 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 03:26:36,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:36,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:36,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:36,055 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:26:36,091 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 03:26:36,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:36,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,098 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 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,120 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 03:26:36,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:36,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:36,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:36,124 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,147 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 03:26:36,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:36,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:36,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:36,150 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 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,174 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 03:26:36,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:36,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:36,185 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 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,219 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 03:26:36,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:36,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:36,229 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,253 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 03:26:36,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:36,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:36,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:36,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:36,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:36,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:36,272 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 03:26:36,308 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-07-29 03:26:36,308 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:26:36,317 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:36,325 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 03:26:36,325 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 03:26:36,325 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(strlen_rec_#in~p.offset, v_rep(select #length strlen_rec_#in~p.base)_1) = -1*strlen_rec_#in~p.offset + 1*v_rep(select #length strlen_rec_#in~p.base)_1 Supporting invariants [] [2020-07-29 03:26:36,368 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-07-29 03:26:36,372 INFO L393 LassoCheck]: Loop: "~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1);" "assume !(0 == #t~mem2);havoc #t~mem2;" "call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);"< [2020-07-29 03:26:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:36,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 03:26:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:36,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 03:26:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:36,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:36,441 INFO L280 TraceCheckUtils]: 0: Hoare triple {239#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {239#unseeded} is VALID [2020-07-29 03:26:36,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {239#unseeded} havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; {239#unseeded} is VALID [2020-07-29 03:26:36,442 INFO L280 TraceCheckUtils]: 2: Hoare triple {239#unseeded} assume !(main_~length1~0 < 1); {239#unseeded} is VALID [2020-07-29 03:26:36,443 INFO L280 TraceCheckUtils]: 3: Hoare triple {239#unseeded} call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; {239#unseeded} is VALID [2020-07-29 03:26:36,444 INFO L280 TraceCheckUtils]: 4: Hoare triple {239#unseeded} assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; {239#unseeded} is VALID [2020-07-29 03:26:36,445 INFO L280 TraceCheckUtils]: 5: Hoare triple {239#unseeded} main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; {239#unseeded} is VALID [2020-07-29 03:26:36,445 INFO L280 TraceCheckUtils]: 6: Hoare triple {239#unseeded} assume !(main_~i~0 < main_~length1~0 - 1); {239#unseeded} is VALID [2020-07-29 03:26:36,446 INFO L280 TraceCheckUtils]: 7: Hoare triple {239#unseeded} call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); {239#unseeded} is VALID [2020-07-29 03:26:36,448 INFO L263 TraceCheckUtils]: 8: Hoare triple {239#unseeded} call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset); {239#unseeded} is VALID [2020-07-29 03:26:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:36,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 03:26:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:36,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:36,518 INFO L280 TraceCheckUtils]: 0: Hoare triple {242#(>= oldRank0 (+ (* (- 1) |strlen_rec_#in~p.offset|) (select |#length| |strlen_rec_#in~p.base|)))} ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); {286#(and (<= (+ strlen_rec_~p.offset 1) (select |#length| strlen_rec_~p.base)) (<= (select |#length| strlen_rec_~p.base) (+ strlen_rec_~p.offset oldRank0)))} is VALID [2020-07-29 03:26:36,519 INFO L280 TraceCheckUtils]: 1: Hoare triple {286#(and (<= (+ strlen_rec_~p.offset 1) (select |#length| strlen_rec_~p.base)) (<= (select |#length| strlen_rec_~p.base) (+ strlen_rec_~p.offset oldRank0)))} assume !(0 == #t~mem2);havoc #t~mem2; {286#(and (<= (+ strlen_rec_~p.offset 1) (select |#length| strlen_rec_~p.base)) (<= (select |#length| strlen_rec_~p.base) (+ strlen_rec_~p.offset oldRank0)))} is VALID [2020-07-29 03:26:36,520 INFO L263 TraceCheckUtils]: 2: Hoare triple {286#(and (<= (+ strlen_rec_~p.offset 1) (select |#length| strlen_rec_~p.base)) (<= (select |#length| strlen_rec_~p.base) (+ strlen_rec_~p.offset oldRank0)))} call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset); {257#(or (and (> oldRank0 (+ (* (- 1) |strlen_rec_#in~p.offset|) (select |#length| |strlen_rec_#in~p.base|))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 03:26:36,520 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 03:26:36,521 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:26:36,532 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:26:36,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,533 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 03:26:36,533 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-29 03:26:36,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 21 transitions. Complement of second has 7 states. [2020-07-29 03:26:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 03:26:36,592 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:36,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. cyclomatic complexity: 4 [2020-07-29 03:26:36,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:36,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:36,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 03:26:36,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 03:26:36,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:36,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:36,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 21 transitions. [2020-07-29 03:26:36,594 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:26:36,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 03:26:36,595 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 12 states and 14 transitions. cyclomatic complexity: 4 [2020-07-29 03:26:36,596 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 03:26:36,596 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 03:26:36,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 03:26:36,597 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 03:26:36,597 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 19 states and 21 transitions. cyclomatic complexity: 4 [2020-07-29 03:26:36,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 21 transitions. cyclomatic complexity: 4 [2020-07-29 03:26:36,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 03:26:36,597 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 03:26:36,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 19 letters. Loop has 19 letters. [2020-07-29 03:26:36,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 19 letters. Loop has 19 letters. [2020-07-29 03:26:36,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 19 letters. Loop has 19 letters. [2020-07-29 03:26:36,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 12 letters. Loop has 12 letters. [2020-07-29 03:26:36,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 12 letters. Loop has 12 letters. [2020-07-29 03:26:36,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 12 letters. Loop has 12 letters. [2020-07-29 03:26:36,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 03:26:36,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 03:26:36,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 03:26:36,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 11 letters. Loop has 3 letters. [2020-07-29 03:26:36,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 3 letters. [2020-07-29 03:26:36,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 11 letters. Loop has 3 letters. [2020-07-29 03:26:36,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 10 letters. Loop has 3 letters. [2020-07-29 03:26:36,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 3 letters. [2020-07-29 03:26:36,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 10 letters. Loop has 3 letters. [2020-07-29 03:26:36,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 14 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 21 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:36,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,605 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 03:26:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-07-29 03:26:36,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-29 03:26:36,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2020-07-29 03:26:36,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2020-07-29 03:26:36,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:36,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. cyclomatic complexity: 4 [2020-07-29 03:26:36,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:26:36,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2020-07-29 03:26:36,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 03:26:36,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 03:26:36,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 03:26:36,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:26:36,614 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:26:36,614 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:26:36,614 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:26:36,615 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 03:26:36,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 03:26:36,615 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:26:36,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 03:26:36,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 03:26:36 BoogieIcfgContainer [2020-07-29 03:26:36,624 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 03:26:36,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 03:26:36,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 03:26:36,625 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 03:26:36,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:26:30" (3/4) ... [2020-07-29 03:26:36,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 03:26:36,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 03:26:36,633 INFO L168 Benchmark]: Toolchain (without parser) took 7660.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 300.4 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:36,634 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:26:36,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:36,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:36,643 INFO L168 Benchmark]: Boogie Preprocessor took 29.54 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 03:26:36,650 INFO L168 Benchmark]: RCFGBuilder took 432.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:36,651 INFO L168 Benchmark]: BuchiAutomizer took 6497.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.9 MB). Peak memory consumption was 115.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:36,653 INFO L168 Benchmark]: Witness Printer took 5.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:26:36,663 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 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 638.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.54 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 432.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6497.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.9 MB). Peak memory consumption was 115.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[p] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 32 SDslu, 21 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital98 mio100 ax118 hnf99 lsp79 ukn72 mio100 lsp60 div100 bol100 ite100 ukn100 eq154 hnf92 smp96 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...