./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.17.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 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:43:36,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:43:36,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:43:36,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:43:36,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:43:36,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:43:36,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:43:36,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:43:36,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:43:36,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:43:36,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:43:36,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:43:36,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:43:36,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:43:36,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:43:36,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:43:36,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:43:36,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:43:36,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:43:36,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:43:36,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:43:36,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:43:36,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:43:36,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:43:36,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:43:36,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:43:36,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:43:36,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:43:36,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:43:36,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:43:36,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:43:36,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:43:36,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:43:36,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:43:36,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:43:36,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:43:36,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:43:36,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:43:36,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:43:36,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:43:36,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:43:36,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:43:36,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:43:36,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:43:36,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:43:36,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:43:36,098 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:43:36,099 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:43:36,099 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:43:36,099 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:43:36,099 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:43:36,099 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:43:36,100 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:43:36,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:43:36,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:43:36,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:43:36,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:43:36,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:43:36,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:43:36,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:43:36,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:43:36,102 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:43:36,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:43:36,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:43:36,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:43:36,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:43:36,103 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:43:36,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:43:36,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:43:36,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:43:36,104 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:43:36,105 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:43:36,105 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 -> 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 [2020-10-19 18:43:36,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:43:36,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:43:36,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:43:36,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:43:36,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:43:36,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.17.c [2020-10-19 18:43:36,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbf04097/7fd987ba62fb48448affe7ea7cab2e49/FLAG747a438c6 [2020-10-19 18:43:36,931 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:43:36,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.17.c [2020-10-19 18:43:36,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbf04097/7fd987ba62fb48448affe7ea7cab2e49/FLAG747a438c6 [2020-10-19 18:43:37,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcbf04097/7fd987ba62fb48448affe7ea7cab2e49 [2020-10-19 18:43:37,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:43:37,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:43:37,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:43:37,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:43:37,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:43:37,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac1ca9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37, skipping insertion in model container [2020-10-19 18:43:37,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:43:37,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:43:37,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:43:37,564 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:43:37,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:43:37,598 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:43:37,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37 WrapperNode [2020-10-19 18:43:37,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:43:37,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:43:37,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:43:37,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:43:37,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:43:37,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:43:37,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:43:37,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:43:37,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... [2020-10-19 18:43:37,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:43:37,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:43:37,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:43:37,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:43:37,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:43:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:43:37,934 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:43:37,934 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:43:37,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:37 BoogieIcfgContainer [2020-10-19 18:43:37,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:43:37,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:43:37,937 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:43:37,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:43:37,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:37,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:43:37" (1/3) ... [2020-10-19 18:43:37,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6483d768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:43:37, skipping insertion in model container [2020-10-19 18:43:37,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:37,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:37" (2/3) ... [2020-10-19 18:43:37,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6483d768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:43:37, skipping insertion in model container [2020-10-19 18:43:37,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:37,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:37" (3/3) ... [2020-10-19 18:43:37,945 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.17.c [2020-10-19 18:43:38,011 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:43:38,011 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:43:38,012 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:43:38,012 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:43:38,012 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:43:38,012 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:43:38,012 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:43:38,012 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:43:38,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:43:38,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:43:38,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:43:38,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:43:38,094 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:43:38,094 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:43:38,094 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:43:38,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:43:38,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:43:38,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:43:38,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:43:38,097 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:43:38,097 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:43:38,106 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2020-10-19 18:43:38,108 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 4#L13-3true main_~x~0 := main_~x~0 - 1; 3#L12-2true [2020-10-19 18:43:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:38,120 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:43:38,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:38,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955066766] [2020-10-19 18:43:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,242 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-19 18:43:38,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:38,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143016794] [2020-10-19 18:43:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:38,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:38,264 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-10-19 18:43:38,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:38,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986518931] [2020-10-19 18:43:38,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:38,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:38,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:38,362 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:38,363 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:38,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:38,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:38,363 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:43:38,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:38,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:38,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:38,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2020-10-19 18:43:38,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:38,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:38,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,493 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:38,494 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:38,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:38,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:43:38,510 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:43:38,510 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:38,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:38,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:43:38,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:43:38,544 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) [2020-10-19 18:43:38,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:38,585 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 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:38,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:43:38,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:43:38,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:43:38,906 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:38,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:38,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:38,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:38,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:43:38,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:38,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:38,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:38,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2020-10-19 18:43:38,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:38,907 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:38,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:38,983 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:38,989 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:39,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:43:39,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:39,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:39,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:39,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:39,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:43:39,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,022 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:43:39,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:39,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:39,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:39,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:39,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:43:39,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:43:39,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:39,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:43:39,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:39,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:43:39,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:39,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:39,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:39,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:43:39,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:43:39,135 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:43:39,135 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:39,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:43:39,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:43:39,149 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:43:39,150 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,190 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:43:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:39,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:43:39,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:39,247 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:43:39,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:43:39,283 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:43:39,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-10-19 18:43:39,341 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-10-19 18:43:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:43:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:43:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-19 18:43:39,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-19 18:43:39,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-19 18:43:39,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-19 18:43:39,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-10-19 18:43:39,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:43:39,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-19 18:43:39,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-19 18:43:39,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-19 18:43:39,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-19 18:43:39,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:43:39,361 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:43:39,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-19 18:43:39,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-10-19 18:43:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 18:43:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-10-19 18:43:39,391 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-19 18:43:39,391 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-19 18:43:39,391 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:43:39,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-10-19 18:43:39,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:43:39,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:43:39,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:43:39,393 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:43:39,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:43:39,393 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 70#L12-2 assume !!(main_~x~0 > main_~z~0); 72#L13-2 [2020-10-19 18:43:39,394 INFO L796 eck$LassoCheckResult]: Loop: 72#L13-2 assume !!(main_~y~0 > main_~z~0);main_~y~0 := main_~y~0 - 1; 72#L13-2 [2020-10-19 18:43:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:43:39,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:39,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851088915] [2020-10-19 18:43:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-19 18:43:39,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:39,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597191624] [2020-10-19 18:43:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:39,417 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-19 18:43:39,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:39,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081873310] [2020-10-19 18:43:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:39,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:39,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:39,445 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:39,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:39,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:39,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:39,446 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:43:39,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:39,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:39,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2020-10-19 18:43:39,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:39,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:39,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,507 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:39,507 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-19 18:43:39,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:39,513 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,517 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:43:39,517 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-19 18:43:39,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:39,546 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:43:39,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:43:39,731 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:43:39,736 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:39,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:39,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:39,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:39,737 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:43:39,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:39,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:39,738 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2020-10-19 18:43:39,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:39,738 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:39,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:39,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:39,810 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:39,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:43:39,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:39,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:39,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:39,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:39,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:43:39,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,841 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:43:39,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:39,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:43:39,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:39,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:39,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:39,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:43:39,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:43:39,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:43:39,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:43:39,892 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:39,897 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:43:39,898 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:43:39,898 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:43:39,898 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-10-19 18:43:39,930 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:43:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:39,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:43:39,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:39,956 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:43:39,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:43:39,957 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 [2020-10-19 18:43:39,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-19 18:43:39,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-10-19 18:43:39,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:43:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:43:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-10-19 18:43:39,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-19 18:43:39,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-19 18:43:39,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-19 18:43:39,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:39,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-10-19 18:43:39,972 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:43:39,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-10-19 18:43:39,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:43:39,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:43:39,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:43:39,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:43:39,974 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:39,974 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:39,974 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:39,974 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:43:39,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:43:39,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:43:39,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:43:39,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:43:39 BoogieIcfgContainer [2020-10-19 18:43:39,982 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:43:39,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:43:39,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:43:39,983 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:43:39,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:37" (3/4) ... [2020-10-19 18:43:39,987 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:43:39,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:43:39,990 INFO L168 Benchmark]: Toolchain (without parser) took 2642.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 951.9 MB in the beginning and 930.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:39,991 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:39,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:39,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.2 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:39,994 INFO L168 Benchmark]: Boogie Preprocessor took 24.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:39,995 INFO L168 Benchmark]: RCFGBuilder took 216.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:39,996 INFO L168 Benchmark]: BuchiAutomizer took 2045.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.5 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:39,996 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 1.1 GB. Free memory is still 930.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:40,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.2 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.04 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 216.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2045.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.5 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.06 ms. Allocated memory is still 1.1 GB. Free memory is still 930.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 5 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 13 SDslu, 7 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...