./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/gj2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/gj2007.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 05ff204c30e7b81bf33f8a8c483906be16c1e587 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:13:23,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:13:23,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:13:23,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:13:23,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:13:23,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:13:23,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:13:23,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:13:23,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:13:23,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:13:23,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:13:23,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:13:23,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:13:23,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:13:23,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:13:23,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:13:23,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:13:23,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:13:23,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:13:23,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:13:23,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:13:23,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:13:23,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:13:23,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:13:23,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:13:23,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:13:23,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:13:23,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:13:23,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:13:23,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:13:23,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:13:23,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:13:23,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:13:23,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:13:23,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:13:23,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:13:23,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:13:23,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:13:23,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:13:23,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:13:23,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:13:23,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:13:23,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:13:23,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:13:23,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:13:23,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:13:23,770 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:13:23,770 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:13:23,770 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:13:23,771 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:13:23,771 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:13:23,771 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:13:23,771 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:13:23,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:13:23,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:13:23,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:13:23,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:13:23,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:13:23,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:13:23,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:13:23,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:13:23,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:13:23,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:13:23,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:13:23,776 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:13:23,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:13:23,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:13:23,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:13:23,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:13:23,777 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:13:23,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:13:23,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:13:23,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:13:23,779 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:13:23,780 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:13:23,780 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 -> 05ff204c30e7b81bf33f8a8c483906be16c1e587 [2020-10-19 19:13:24,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:13:24,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:13:24,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:13:24,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:13:24,134 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:13:24,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gj2007.i [2020-10-19 19:13:24,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efd6edd77/9ccf348bda484e3183a6c3e3e206993f/FLAG4849791a1 [2020-10-19 19:13:24,660 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:13:24,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007.i [2020-10-19 19:13:24,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efd6edd77/9ccf348bda484e3183a6c3e3e206993f/FLAG4849791a1 [2020-10-19 19:13:25,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efd6edd77/9ccf348bda484e3183a6c3e3e206993f [2020-10-19 19:13:25,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:13:25,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:13:25,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:25,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:13:25,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:13:25,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c6ff18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25, skipping insertion in model container [2020-10-19 19:13:25,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:13:25,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:13:25,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:25,303 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:13:25,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:25,335 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:13:25,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25 WrapperNode [2020-10-19 19:13:25,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:25,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:25,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:13:25,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:13:25,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:25,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:13:25,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:13:25,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:13:25,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (1/1) ... [2020-10-19 19:13:25,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:13:25,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:13:25,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:13:25,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:13:25,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (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 [2020-10-19 19:13:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:13:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:13:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:13:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:13:25,722 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:13:25,722 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 19:13:25,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:25 BoogieIcfgContainer [2020-10-19 19:13:25,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:13:25,725 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:13:25,725 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:13:25,729 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:13:25,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:25,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:13:25" (1/3) ... [2020-10-19 19:13:25,732 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee69a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:25, skipping insertion in model container [2020-10-19 19:13:25,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:25,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:25" (2/3) ... [2020-10-19 19:13:25,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee69a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:25, skipping insertion in model container [2020-10-19 19:13:25,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:25,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:25" (3/3) ... [2020-10-19 19:13:25,736 INFO L373 chiAutomizerObserver]: Analyzing ICFG gj2007.i [2020-10-19 19:13:25,788 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:13:25,789 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:13:25,789 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:13:25,789 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:13:25,789 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:13:25,790 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:13:25,790 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:13:25,790 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:13:25,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-19 19:13:25,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 19:13:25,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:25,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:25,854 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:13:25,855 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:13:25,855 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:13:25,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-19 19:13:25,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 19:13:25,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:25,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:25,859 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:13:25,859 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:13:25,871 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 8#L-1true havoc main_#res;havoc main_~x~0, main_~y~0;main_~x~0 := 0;main_~y~0 := 50; 3#L28-2true [2020-10-19 19:13:25,872 INFO L796 eck$LassoCheckResult]: Loop: 3#L28-2true assume !!(main_~x~0 < 100); 5#L28true assume !(main_~x~0 < 50);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1 + main_~y~0; 3#L28-2true [2020-10-19 19:13:25,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:25,881 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:13:25,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:25,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773799718] [2020-10-19 19:13:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:26,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:26,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:26,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:26,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2020-10-19 19:13:26,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:26,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7689286] [2020-10-19 19:13:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:26,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:26,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:26,122 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:26,125 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2020-10-19 19:13:26,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:26,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039554185] [2020-10-19 19:13:26,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:26,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039554185] [2020-10-19 19:13:26,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:13:26,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 19:13:26,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822574951] [2020-10-19 19:13:26,261 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:26,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:26,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:26,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:26,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:13:26,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:26,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:26,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007.i_Iteration1_Loop [2020-10-19 19:13:26,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:26,264 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:26,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:26,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:26,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:26,368 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2020-10-19 19:13:26,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:26,394 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-19 19:13:26,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:26,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:13:26,451 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:13:26,452 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=7}, {ULTIMATE.start_main_~y~0=-3}, {ULTIMATE.start_main_~y~0=-3}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:26,477 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:26,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:13:26,516 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:13:26,536 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:26,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:26,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:26,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:26,537 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:26,537 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,537 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:26,537 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:26,537 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007.i_Iteration1_Loop [2020-10-19 19:13:26,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:26,537 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:26,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:26,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:26,592 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:26,598 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:13:26,624 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:26,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:26,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:26,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:26,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:26,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:26,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:26,636 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) [2020-10-19 19:13:26,684 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 [2020-10-19 19:13:26,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:26,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:26,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:26,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:26,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:26,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:26,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:26,693 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,698 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:13:26,698 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:26,705 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:26,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:13:26,706 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:26,706 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2020-10-19 19:13:26,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:13:26,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:26,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:26,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:26,810 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:26,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:26,844 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 [2020-10-19 19:13:26,846 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-10-19 19:13:26,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 31 states and 40 transitions. Complement of second has 7 states. [2020-10-19 19:13:26,907 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 [2020-10-19 19:13:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:13:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2020-10-19 19:13:26,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-19 19:13:26,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 19:13:26,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 4 letters. [2020-10-19 19:13:26,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:26,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2020-10-19 19:13:26,918 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-19 19:13:26,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:26,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:26,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:26,924 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,925 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:26,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:13:26,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:13:26,930 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-19 19:13:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:26,933 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 19:13:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 19:13:26,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 19:13:26,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:26,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:26,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:26,936 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,936 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,936 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:26,936 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:13:26,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:13:26,936 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:26,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:13:26,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:13:26 BoogieIcfgContainer [2020-10-19 19:13:26,944 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:13:26,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:13:26,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:13:26,945 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:13:26,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:25" (3/4) ... [2020-10-19 19:13:26,950 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:13:26,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:13:26,953 INFO L168 Benchmark]: Toolchain (without parser) took 1902.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 960.0 MB in the beginning and 959.5 MB in the end (delta: 467.3 kB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,954 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:26,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,957 INFO L168 Benchmark]: Boogie Preprocessor took 21.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,958 INFO L168 Benchmark]: RCFGBuilder took 263.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,959 INFO L168 Benchmark]: BuchiAutomizer took 1219.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.5 MB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:26,959 INFO L168 Benchmark]: Witness Printer took 5.36 ms. Allocated memory is still 1.1 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:26,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1219.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.5 MB in the end (delta: 102.2 MB). Peak memory consumption was 102.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.36 ms. Allocated memory is still 1.1 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 14 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf94 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...