./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87d0ba70ff123101875b88252c232be93381362a ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:15:49,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:15:49,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:15:49,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:15:49,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:15:49,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:15:49,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:15:49,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:15:49,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:15:49,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:15:49,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:15:49,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:15:49,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:15:49,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:15:49,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:15:49,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:15:49,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:15:49,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:15:49,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:15:49,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:15:49,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:15:49,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:15:49,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:15:49,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:15:49,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:15:49,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:15:49,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:15:49,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:15:49,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:15:49,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:15:49,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:15:49,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:15:49,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:15:49,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:15:49,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:15:49,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:15:49,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:15:49,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:15:49,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:15:49,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:15:49,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:15:49,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:15:49,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:15:49,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:15:49,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:15:49,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:15:49,943 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:15:49,943 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:15:49,944 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:15:49,944 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:15:49,944 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:15:49,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:15:49,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:15:49,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:15:49,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:15:49,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:15:49,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:15:49,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:15:49,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:15:49,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:15:49,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:15:49,946 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:15:49,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:15:49,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:15:49,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:15:49,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:15:49,947 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:15:49,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:15:49,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:15:49,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:15:49,948 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:15:49,950 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:15:49,950 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2020-10-26 04:15:50,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:15:50,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:15:50,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:15:50,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:15:50,444 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:15:50,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-10-26 04:15:50,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2666184fb/ff7b079616c34f5b89cb1fa75abc61ce/FLAG10ee971fc [2020-10-26 04:15:51,183 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:15:51,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-10-26 04:15:51,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2666184fb/ff7b079616c34f5b89cb1fa75abc61ce/FLAG10ee971fc [2020-10-26 04:15:51,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2666184fb/ff7b079616c34f5b89cb1fa75abc61ce [2020-10-26 04:15:51,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:15:51,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:15:51,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:15:51,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:15:51,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:15:51,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6245a345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51, skipping insertion in model container [2020-10-26 04:15:51,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:15:51,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:15:51,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:15:51,773 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:15:51,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:15:51,805 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:15:51,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51 WrapperNode [2020-10-26 04:15:51,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:15:51,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:15:51,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:15:51,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:15:51,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:15:51,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:15:51,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:15:51,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:15:51,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (1/1) ... [2020-10-26 04:15:51,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:15:51,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:15:51,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:15:51,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:15:51,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (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 [2020-10-26 04:15:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure le [2020-10-26 04:15:51,947 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2020-10-26 04:15:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:15:51,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:15:52,126 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:15:52,126 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-26 04:15:52,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:52 BoogieIcfgContainer [2020-10-26 04:15:52,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:15:52,130 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:15:52,130 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:15:52,135 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:15:52,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:52,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:15:51" (1/3) ... [2020-10-26 04:15:52,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67e10bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:15:52, skipping insertion in model container [2020-10-26 04:15:52,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:52,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:51" (2/3) ... [2020-10-26 04:15:52,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67e10bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:15:52, skipping insertion in model container [2020-10-26 04:15:52,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:52,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:52" (3/3) ... [2020-10-26 04:15:52,141 INFO L373 chiAutomizerObserver]: Analyzing ICFG LeUserDefRec.c [2020-10-26 04:15:52,203 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:15:52,203 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:15:52,203 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:15:52,204 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:15:52,204 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:15:52,204 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:15:52,204 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:15:52,204 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:15:52,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-26 04:15:52,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:15:52,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:15:52,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:15:52,261 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:15:52,262 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:15:52,262 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:15:52,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-26 04:15:52,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:15:52,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:15:52,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:15:52,265 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:15:52,265 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:15:52,276 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 13#L23true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L26true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L29true call main_#t~ret3 := le(main_~x~0, main_~y~0);< 12#leENTRYtrue [2020-10-26 04:15:52,276 INFO L796 eck$LassoCheckResult]: Loop: 12#leENTRYtrue ~x := #in~x;~y := #in~y; 4#L42true assume ~x > 0 && ~y > 0; 16#L43true call #t~ret5 := le(~x - 1, ~y - 1);< 12#leENTRYtrue [2020-10-26 04:15:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2020-10-26 04:15:52,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:52,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21927917] [2020-10-26 04:15:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:52,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:52,446 INFO L82 PathProgramCache]: Analyzing trace with hash 29909, now seen corresponding path program 1 times [2020-10-26 04:15:52,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:52,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920116338] [2020-10-26 04:15:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,469 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:52,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:52,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1559568360, now seen corresponding path program 1 times [2020-10-26 04:15:52,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:52,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391729457] [2020-10-26 04:15:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:52,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:52,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:52,718 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-26 04:15:52,887 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:15:52,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:15:52,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:15:52,888 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:15:52,889 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:15:52,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:52,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:15:52,890 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:15:52,890 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2020-10-26 04:15:52,890 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:15:52,891 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:15:52,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:52,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:52,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:52,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:52,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:52,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,121 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:15:53,122 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 [2020-10-26 04:15:53,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:15:53,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:15:53,164 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:15:53,164 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {le_~y=0} Honda state: {le_~y=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-26 04:15:53,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:15:53,207 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-26 04:15:53,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:15:53,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:15:53,280 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:15:53,282 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:15:53,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:15:53,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:15:53,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:15:53,283 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:15:53,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:53,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:15:53,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:15:53,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2020-10-26 04:15:53,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:15:53,284 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:15:53,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:53,371 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:15:53,377 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:15:53,389 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 [2020-10-26 04:15:53,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:53,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:15:53,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:53,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:53,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:53,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:15:53,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:53,401 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:15:53,407 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:15:53,407 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 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) [2020-10-26 04:15:53,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:15:53,415 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:15:53,416 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:15:53,417 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(le_#in~y) = 1*le_#in~y Supporting invariants [] Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:53,445 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:15:53,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:15:53,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:15:53,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:15:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:15:53,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:15:53,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:15:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:15:53,624 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-26 04:15:53,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2020-10-26 04:15:53,759 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 12 states. [2020-10-26 04:15:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:15:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:15:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-10-26 04:15:53,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-26 04:15:53,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:53,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:15:53,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:53,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-26 04:15:53,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:53,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-10-26 04:15:53,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:15:53,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-10-26 04:15:53,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:15:53,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:15:53,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:15:53,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:15:53,787 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:53,787 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:53,787 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:53,787 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:15:53,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:15:53,788 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:15:53,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:15:53,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:15:53 BoogieIcfgContainer [2020-10-26 04:15:53,795 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:15:53,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:15:53,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:15:53,796 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:15:53,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:52" (3/4) ... [2020-10-26 04:15:53,800 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:15:53,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:15:53,803 INFO L168 Benchmark]: Toolchain (without parser) took 2260.92 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.7 MB in the beginning and 30.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,804 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:53,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.69 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 29.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 28.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,806 INFO L168 Benchmark]: Boogie Preprocessor took 17.79 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.4 MB in the end (delta: 957.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,807 INFO L168 Benchmark]: RCFGBuilder took 266.32 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 30.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,808 INFO L168 Benchmark]: BuchiAutomizer took 1664.99 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 30.1 MB in the beginning and 30.6 MB in the end (delta: -539.3 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:53,809 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 60.8 MB. Free memory was 30.6 MB in the beginning and 30.3 MB in the end (delta: 344.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:53,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 41.9 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.69 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 29.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 28.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.79 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.4 MB in the end (delta: 957.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 266.32 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 30.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1664.99 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 30.1 MB in the beginning and 30.6 MB in the end (delta: -539.3 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.21 ms. Allocated memory is still 60.8 MB. Free memory was 30.6 MB in the beginning and 30.3 MB in the end (delta: 344.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(y) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 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...