./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/WhileDecr.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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-restricted-15/WhileDecr.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 a76a93feca7c314bf25e39b953063fea01fd6c04 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:36:12,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:36:12,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:36:12,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:36:12,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:36:12,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:36:12,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:36:12,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:36:12,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:36:12,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:36:12,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:36:12,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:36:12,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:36:12,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:36:12,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:36:12,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:36:12,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:36:12,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:36:12,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:36:12,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:36:12,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:36:12,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:36:12,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:36:12,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:36:12,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:36:12,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:36:12,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:36:12,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:36:12,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:36:12,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:36:12,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:36:12,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:36:12,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:36:12,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:36:12,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:36:12,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:36:12,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:36:12,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:36:12,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:36:12,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:36:12,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:36:12,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:36:12,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:36:12,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:36:12,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:36:12,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:36:12,306 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:36:12,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:36:12,307 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:36:12,307 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:36:12,307 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:36:12,308 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:36:12,308 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:36:12,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:36:12,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:36:12,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:36:12,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:36:12,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:36:12,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:36:12,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:36:12,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:36:12,310 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:36:12,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:36:12,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:36:12,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:36:12,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:36:12,311 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:36:12,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:36:12,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:36:12,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:36:12,312 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:36:12,313 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:36:12,314 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 -> a76a93feca7c314bf25e39b953063fea01fd6c04 [2020-10-20 06:36:12,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:36:12,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:36:12,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:36:12,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:36:12,550 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:36:12,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2020-10-20 06:36:12,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77bdf1af/b19d4d8ec24042a09d9ce1b56d563bb3/FLAG5b5bf9a9e [2020-10-20 06:36:13,029 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:36:13,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2020-10-20 06:36:13,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77bdf1af/b19d4d8ec24042a09d9ce1b56d563bb3/FLAG5b5bf9a9e [2020-10-20 06:36:13,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c77bdf1af/b19d4d8ec24042a09d9ce1b56d563bb3 [2020-10-20 06:36:13,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:36:13,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:36:13,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:36:13,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:36:13,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:36:13,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11310409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13, skipping insertion in model container [2020-10-20 06:36:13,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:36:13,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:36:13,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:13,756 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:36:13,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:13,788 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:36:13,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13 WrapperNode [2020-10-20 06:36:13,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:36:13,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:13,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:36:13,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:36:13,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:13,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:36:13,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:36:13,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:36:13,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (1/1) ... [2020-10-20 06:36:13,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:36:13,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:36:13,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:36:13,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:36:13,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (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 [2020-10-20 06:36:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:36:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:36:14,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:36:14,095 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:36:14,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:14 BoogieIcfgContainer [2020-10-20 06:36:14,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:36:14,098 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:36:14,098 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:36:14,102 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:36:14,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:14,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:36:13" (1/3) ... [2020-10-20 06:36:14,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b828f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:14, skipping insertion in model container [2020-10-20 06:36:14,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:14,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:13" (2/3) ... [2020-10-20 06:36:14,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b828f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:14, skipping insertion in model container [2020-10-20 06:36:14,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:14,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:14" (3/3) ... [2020-10-20 06:36:14,108 INFO L373 chiAutomizerObserver]: Analyzing ICFG WhileDecr.c [2020-10-20 06:36:14,175 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:36:14,176 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:36:14,176 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:36:14,176 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:36:14,176 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:36:14,176 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:36:14,177 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:36:14,177 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:36:14,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:36:14,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:14,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:14,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:14,219 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:14,219 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:36:14,219 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:36:14,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:36:14,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:14,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:14,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:14,220 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:14,221 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:36:14,227 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L9-2true [2020-10-20 06:36:14,227 INFO L796 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(main_~i~0 > 5);main_~i~0 := main_~i~0 - 1; 5#L9-2true [2020-10-20 06:36:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:36:14,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:14,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746348749] [2020-10-20 06:36:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:14,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:14,343 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-20 06:36:14,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:14,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809612955] [2020-10-20 06:36:14,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:14,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:14,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:36:14,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:14,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230492095] [2020-10-20 06:36:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,369 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:14,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:14,374 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:14,443 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:14,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:14,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:14,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:14,445 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:14,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:14,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:14,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:14,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhileDecr.c_Iteration1_Loop [2020-10-20 06:36:14,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:14,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:14,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,650 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:14,650 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) [2020-10-20 06:36:14,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:14,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:14,667 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:14,668 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: [] Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 [2020-10-20 06:36:14,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:14,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:14,713 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:14,714 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 [2020-10-20 06:36:14,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:14,745 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:14,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:14,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:14,809 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:14,811 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:14,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:14,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:14,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:14,812 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:14,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:14,813 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:14,813 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:14,813 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhileDecr.c_Iteration1_Loop [2020-10-20 06:36:14,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:14,814 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:14,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:14,927 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:14,935 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:14,956 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 [2020-10-20 06:36:14,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:14,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:14,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:14,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:14,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:14,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:14,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:15,028 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 [2020-10-20 06:36:15,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:15,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:15,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:15,032 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 [2020-10-20 06:36:15,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:15,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:15,051 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 [2020-10-20 06:36:15,098 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 [2020-10-20 06:36:15,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:15,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:15,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:15,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:15,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:15,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:15,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:15,111 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:15,136 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:36:15,136 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:36:15,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:15,146 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:15,146 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:15,147 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 06:36:15,173 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:15,210 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:15,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:15,249 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:15,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:15,270 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:36:15,272 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-10-20 06:36:15,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-10-20 06:36:15,319 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 [2020-10-20 06:36:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:36:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-20 06:36:15,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-20 06:36:15,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:15,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-20 06:36:15,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:15,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-20 06:36:15,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:15,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-20 06:36:15,327 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:15,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-20 06:36:15,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:36:15,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:36:15,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:36:15,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:36:15,333 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:15,333 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:15,333 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:15,334 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:36:15,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:36:15,334 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:15,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:36:15,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:36:15 BoogieIcfgContainer [2020-10-20 06:36:15,341 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:36:15,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:36:15,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:36:15,342 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:36:15,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:14" (3/4) ... [2020-10-20 06:36:15,346 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:36:15,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:36:15,349 INFO L168 Benchmark]: Toolchain (without parser) took 1891.31 ms. Allocated memory was 34.6 MB in the beginning and 45.6 MB in the end (delta: 11.0 MB). Free memory was 11.7 MB in the beginning and 23.7 MB in the end (delta: -12.0 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:36:15,350 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 19.2 MB in the beginning and 19.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.00 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 10.8 MB in the beginning and 27.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 42.5 MB. Free memory was 27.1 MB in the beginning and 25.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,353 INFO L168 Benchmark]: Boogie Preprocessor took 22.06 ms. Allocated memory is still 42.5 MB. Free memory was 25.6 MB in the beginning and 24.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,354 INFO L168 Benchmark]: RCFGBuilder took 242.79 ms. Allocated memory is still 42.5 MB. Free memory was 24.5 MB in the beginning and 16.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,355 INFO L168 Benchmark]: BuchiAutomizer took 1242.59 ms. Allocated memory was 42.5 MB in the beginning and 45.6 MB in the end (delta: 3.1 MB). Free memory was 16.2 MB in the beginning and 24.3 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:36:15,355 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 45.6 MB. Free memory was 24.0 MB in the beginning and 23.7 MB in the end (delta: 340.1 kB). Peak memory consumption was 340.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:15,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 19.2 MB in the beginning and 19.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 326.00 ms. Allocated memory was 34.6 MB in the beginning and 42.5 MB in the end (delta: 7.9 MB). Free memory was 10.8 MB in the beginning and 27.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 42.5 MB. Free memory was 27.1 MB in the beginning and 25.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.06 ms. Allocated memory is still 42.5 MB. Free memory was 25.6 MB in the beginning and 24.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 242.79 ms. Allocated memory is still 42.5 MB. Free memory was 24.5 MB in the beginning and 16.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 1242.59 ms. Allocated memory was 42.5 MB in the beginning and 45.6 MB in the end (delta: 3.1 MB). Free memory was 16.2 MB in the beginning and 24.3 MB in the end (delta: -8.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.01 ms. Allocated memory is still 45.6 MB. Free memory was 24.0 MB in the beginning and 23.7 MB in the end (delta: 340.1 kB). Peak memory consumption was 340.1 kB. Max. memory is 14.3 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 i and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s 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: 4 SDtfs, 4 SDslu, 3 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: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...