./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 678e0110 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 0.1.24-678e011 [2019-11-19 22:20:20,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:20:20,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:20:20,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:20:20,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:20:20,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:20:20,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:20:20,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:20:20,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:20:20,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:20:20,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:20:20,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:20:20,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:20:20,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:20:20,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:20:20,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:20:20,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:20:20,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:20:20,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:20:20,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:20:20,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:20:20,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:20:20,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:20:20,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:20:20,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:20:20,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:20:20,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:20:20,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:20:20,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:20:20,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:20:20,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:20:20,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:20:20,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:20:20,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:20:20,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:20:20,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:20:20,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:20:20,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:20:20,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:20:20,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:20:20,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:20:20,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:20:20,242 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:20:20,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:20:20,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:20:20,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:20:20,244 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:20:20,245 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:20:20,245 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:20:20,245 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:20:20,246 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:20:20,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:20:20,246 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:20:20,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:20:20,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:20:20,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:20:20,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:20:20,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:20:20,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:20:20,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:20:20,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:20:20,249 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:20:20,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:20:20,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:20:20,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:20:20,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:20:20,250 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:20:20,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:20:20,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:20:20,251 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:20:20,252 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:20:20,252 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 [2019-11-19 22:20:20,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:20:20,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:20:20,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:20:20,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:20:20,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:20:20,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-19 22:20:20,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015257f91/483b51b0942e42c589e1d3c1c1cc51a4/FLAGb178b7d33 [2019-11-19 22:20:21,093 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:20:21,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-19 22:20:21,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015257f91/483b51b0942e42c589e1d3c1c1cc51a4/FLAGb178b7d33 [2019-11-19 22:20:21,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015257f91/483b51b0942e42c589e1d3c1c1cc51a4 [2019-11-19 22:20:21,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:20:21,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:20:21,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:21,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:20:21,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:20:21,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2a7526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21, skipping insertion in model container [2019-11-19 22:20:21,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,502 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:20:21,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:20:21,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:21,711 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:20:21,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:21,746 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:20:21,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21 WrapperNode [2019-11-19 22:20:21,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:21,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:21,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:20:21,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:20:21,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:21,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:20:21,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:20:21,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:20:21,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:20:21,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:20:21,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:20:21,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:20:21,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (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 [2019-11-19 22:20:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:20:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:20:22,074 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:20:22,075 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:20:22,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:22 BoogieIcfgContainer [2019-11-19 22:20:22,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:20:22,077 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:20:22,077 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:20:22,081 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:20:22,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:22,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:20:21" (1/3) ... [2019-11-19 22:20:22,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ff0aec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:22, skipping insertion in model container [2019-11-19 22:20:22,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:22,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (2/3) ... [2019-11-19 22:20:22,099 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ff0aec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:22, skipping insertion in model container [2019-11-19 22:20:22,099 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:22,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:22" (3/3) ... [2019-11-19 22:20:22,104 INFO L371 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-19 22:20:22,207 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:20:22,207 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:20:22,207 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:20:22,207 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:20:22,208 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:20:22,208 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:20:22,208 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:20:22,208 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:20:22,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 22:20:22,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-19 22:20:22,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:22,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:22,250 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 22:20:22,250 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:22,250 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:20:22,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 22:20:22,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-19 22:20:22,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:22,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:22,253 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 22:20:22,253 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:22,260 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~i~0, main_~r~0, main_~N~0;havoc main_~x~0;havoc main_~y~0;havoc main_~i~0;havoc main_~r~0;havoc main_~N~0;main_~N~0 := 10;main_~x~0 := 0;main_~y~0 := 0;main_~i~0 := 0; 3#L22-1true [2019-11-19 22:20:22,260 INFO L796 eck$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 [2019-11-19 22:20:22,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:22,266 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-19 22:20:22,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:22,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406919924] [2019-11-19 22:20:22,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1307, now seen corresponding path program 1 times [2019-11-19 22:20:22,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:22,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473923350] [2019-11-19 22:20:22,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,381 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash 31098, now seen corresponding path program 1 times [2019-11-19 22:20:22,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:22,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232583727] [2019-11-19 22:20:22,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:22,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:22,511 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:22,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:22,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:22,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:22,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:20:22,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:22,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:22,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:22,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2019-11-19 22:20:22,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:22,515 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:22,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,694 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:22,695 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 [2019-11-19 22:20:22,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:22,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:22,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:22,722 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe 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) [2019-11-19 22:20:22,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:22,732 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:22,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:22,738 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:22,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:22,750 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:22,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:22,762 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=4, ULTIMATE.start_main_~r~0=4} Honda state: {ULTIMATE.start_main_#t~nondet0=4, ULTIMATE.start_main_~r~0=4} 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 [2019-11-19 22:20:22,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:22,772 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 [2019-11-19 22:20:22,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:20:22,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:22,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:20:22,934 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:22,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:22,935 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:22,935 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:22,935 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:20:22,935 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:22,935 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:22,935 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:22,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2019-11-19 22:20:22,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:22,936 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:22,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:22,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:23,070 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:23,078 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) [2019-11-19 22:20:23,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:23,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:23,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:23,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:23,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:23,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:23,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:20:23,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:23,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:23,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:23,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:23,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:23,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:23,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:23,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:20:23,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:23,157 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 [2019-11-19 22:20:23,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:23,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:23,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:23,162 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-19 22:20:23,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:23,168 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-19 22:20:23,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:20:23,175 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) [2019-11-19 22:20:23,196 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 [2019-11-19 22:20:23,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:23,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:23,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:23,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:23,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:23,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:20:23,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:23,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:20:23,223 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 22:20:23,223 INFO L444 ModelExtractionUtils]: 0 out of 4 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:23,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:20:23,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:20:23,231 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:20:23,231 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 [] [2019-11-19 22:20:23,237 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 22:20:23,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:23,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:23,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:23,301 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:23,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:23,364 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 [2019-11-19 22:20:23,366 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-19 22:20:23,423 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 27 states and 40 transitions. Complement of second has 5 states. [2019-11-19 22:20:23,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:20:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-11-19 22:20:23,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-19 22:20:23,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:23,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 22:20:23,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:23,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-19 22:20:23,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:23,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2019-11-19 22:20:23,446 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:20:23,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2019-11-19 22:20:23,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:20:23,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:20:23,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:20:23,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:20:23,453 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:20:23,453 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:20:23,453 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:20:23,454 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:20:23,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:20:23,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:20:23,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:20:23,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:20:23 BoogieIcfgContainer [2019-11-19 22:20:23,464 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:20:23,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:20:23,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:20:23,465 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:20:23,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:22" (3/4) ... [2019-11-19 22:20:23,471 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:20:23,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:20:23,478 INFO L168 Benchmark]: Toolchain (without parser) took 1988.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 956.3 MB in the beginning and 956.7 MB in the end (delta: -318.5 kB). Peak memory consumption was 106.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,480 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:20:23,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.20 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,485 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 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. [2019-11-19 22:20:23,487 INFO L168 Benchmark]: RCFGBuilder took 226.80 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,489 INFO L168 Benchmark]: BuchiAutomizer took 1387.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 963.4 MB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,495 INFO L168 Benchmark]: Witness Printer took 7.57 ms. Allocated memory is still 1.1 GB. Free memory was 963.4 MB in the beginning and 956.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:23,509 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.20 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 81.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.53 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 226.80 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1387.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 963.4 MB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.57 ms. Allocated memory is still 1.1 GB. Free memory was 963.4 MB in the beginning and 956.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: 38ms 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...