./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.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 b0a853f0131530f88013a3fcfdf4f133f41c0569 ......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:41:15,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:41:15,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:41:15,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:41:15,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:41:15,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:41:15,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:41:15,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:41:15,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:41:15,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:41:15,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:41:15,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:41:15,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:41:15,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:41:15,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:41:15,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:41:15,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:41:15,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:41:15,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:41:15,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:41:15,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:41:15,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:41:15,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:41:15,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:41:15,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:41:15,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:41:15,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:41:15,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:41:15,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:41:15,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:41:15,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:41:15,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:41:15,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:41:15,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:41:15,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:41:15,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:41:15,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:41:15,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:41:15,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:41:15,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:41:15,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:41:15,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:41:15,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:41:15,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:41:15,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:41:15,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:41:15,147 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:41:15,148 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:41:15,148 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:41:15,148 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:41:15,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:41:15,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:41:15,149 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:41:15,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:41:15,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:41:15,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:41:15,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:41:15,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:41:15,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:41:15,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:41:15,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:41:15,152 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:41:15,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:41:15,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:41:15,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:41:15,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:41:15,153 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:41:15,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:41:15,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:41:15,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:41:15,155 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:41:15,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:41:15,156 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2020-10-19 18:41:15,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:41:15,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:41:15,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:41:15,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:41:15,496 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:41:15,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2020-10-19 18:41:15,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563091175/5e1b50b1ce484396b58273ecae613465/FLAGdc4ffef50 [2020-10-19 18:41:16,002 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:41:16,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2020-10-19 18:41:16,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563091175/5e1b50b1ce484396b58273ecae613465/FLAGdc4ffef50 [2020-10-19 18:41:16,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563091175/5e1b50b1ce484396b58273ecae613465 [2020-10-19 18:41:16,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:41:16,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:41:16,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:41:16,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:41:16,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:41:16,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1586832b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16, skipping insertion in model container [2020-10-19 18:41:16,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:41:16,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:41:16,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:41:16,597 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:41:16,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:41:16,625 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:41:16,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16 WrapperNode [2020-10-19 18:41:16,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:41:16,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:41:16,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:41:16,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:41:16,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:41:16,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:41:16,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:41:16,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:41:16,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (1/1) ... [2020-10-19 18:41:16,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:41:16,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:41:16,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:41:16,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:41:16,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (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 18:41:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:41:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:41:16,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:41:16,964 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:41:16,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:41:16 BoogieIcfgContainer [2020-10-19 18:41:16,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:41:16,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:41:16,967 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:41:16,970 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:41:16,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:41:16,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:41:16" (1/3) ... [2020-10-19 18:41:16,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c14bd55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:41:16, skipping insertion in model container [2020-10-19 18:41:16,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:41:16,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:41:16" (2/3) ... [2020-10-19 18:41:16,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c14bd55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:41:16, skipping insertion in model container [2020-10-19 18:41:16,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:41:16,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:41:16" (3/3) ... [2020-10-19 18:41:16,975 INFO L373 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2020-10-19 18:41:17,029 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:41:17,029 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:41:17,030 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:41:17,030 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:41:17,030 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:41:17,030 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:41:17,030 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:41:17,030 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:41:17,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:41:17,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:41:17,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:41:17,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:41:17,075 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:41:17,076 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:41:17,076 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:41:17,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:41:17,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:41:17,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:41:17,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:41:17,078 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:41:17,078 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:41:17,086 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~i~0, main_~r~0, main_~N~0;havoc main_~x~0;havoc main_~y~0;havoc main_~i~0;havoc main_~r~0;havoc main_~N~0;main_~N~0 := 10;main_~x~0 := 0;main_~y~0 := 0;main_~i~0 := 0; 3#L22-1true [2020-10-19 18:41:17,086 INFO L796 eck$LassoCheckResult]: Loop: 3#L22-1true assume !!(main_~i~0 < main_~N~0);main_~i~0 := 1 + main_~i~0;main_~r~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L22true assume !(main_~r~0 >= 0 && main_~r~0 <= 3); 3#L22-1true [2020-10-19 18:41:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,093 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:41:17,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234473208] [2020-10-19 18:41:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1307, now seen corresponding path program 1 times [2020-10-19 18:41:17,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269203929] [2020-10-19 18:41:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash 31098, now seen corresponding path program 1 times [2020-10-19 18:41:17,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:41:17,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580740786] [2020-10-19 18:41:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:41:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:41:17,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:41:17,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:41:17,364 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:17,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:17,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:17,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:17,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:41:17,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:17,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:17,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2020-10-19 18:41:17,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:17,367 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:17,415 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 18:41:17,425 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 18:41:17,432 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 18:41:17,446 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 18:41:17,569 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:17,570 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 18:41:17,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,588 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,588 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=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 [2020-10-19 18:41:17,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,618 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 18:41:17,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:41:17,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=7, ULTIMATE.start_main_~r~0=7} Honda state: {ULTIMATE.start_main_#t~nondet0=7, ULTIMATE.start_main_~r~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 18:41:17,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:41:17,674 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:41:17,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:41:17,910 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:41:17,912 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:41:17,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:41:17,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:41:17,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:41:17,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:41:17,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:17,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:41:17,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:41:17,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2020-10-19 18:41:17,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:41:17,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:41:17,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:41:17,937 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 18:41:17,950 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 18:41:18,032 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:41:18,038 INFO L489 LassoAnalysis]: Using template 'affine'. 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 18:41:18,052 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 18:41:18,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:18,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:18,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:18,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:41:18,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:41:18,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:18,112 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 18:41:18,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:18,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:18,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:18,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:18,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:41:18,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:18,172 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 18:41:18,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:18,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:41:18,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:18,176 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:41:18,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:18,179 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:41:18,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,220 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 18:41:18,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:41:18,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:41:18,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:41:18,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:41:18,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:41:18,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:41:18,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:41:18,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:41:18,233 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:41:18,233 INFO L444 ModelExtractionUtils]: 1 out of 4 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:41:18,247 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:41:18,247 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:41:18,248 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:41:18,249 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:41:18,282 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:41:18,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:41:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:41:18,337 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:41:18,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:41:18,390 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 18:41:18,409 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 18:41:18,410 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-10-19 18:41:18,460 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 27 states and 40 transitions. Complement of second has 5 states. [2020-10-19 18:41:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:41:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:41:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-10-19 18:41:18,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-19 18:41:18,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-19 18:41:18,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 4 letters. [2020-10-19 18:41:18,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:41:18,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2020-10-19 18:41:18,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:41:18,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2020-10-19 18:41:18,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:41:18,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:41:18,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:41:18,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:41:18,478 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,478 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,479 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:41:18,479 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:41:18,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:41:18,479 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:41:18,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:41:18,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:41:18 BoogieIcfgContainer [2020-10-19 18:41:18,487 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:41:18,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:41:18,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:41:18,488 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:41:18,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:41:16" (3/4) ... [2020-10-19 18:41:18,492 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:41:18,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:41:18,496 INFO L168 Benchmark]: Toolchain (without parser) took 2100.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 954.6 MB in the beginning and 958.3 MB in the end (delta: -3.7 MB). Peak memory consumption was 100.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,496 INFO L168 Benchmark]: CDTParser took 0.28 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 18:41:18,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,499 INFO L168 Benchmark]: Boogie Preprocessor took 16.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:41:18,500 INFO L168 Benchmark]: RCFGBuilder took 233.71 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,501 INFO L168 Benchmark]: BuchiAutomizer took 1520.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.3 MB in the end (delta: 123.1 MB). Peak memory consumption was 123.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:41:18,501 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 1.1 GB. Free memory is still 958.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:41:18,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 226.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 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 88.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 233.71 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1520.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.3 MB in the end (delta: 123.1 MB). Peak memory consumption was 123.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.46 ms. Allocated memory is still 1.1 GB. Free memory is still 958.3 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 14 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf94 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf93 smp100 dnf146 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...