./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/NO_13.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 eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:30:45,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:30:45,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:30:45,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:30:45,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:30:45,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:30:45,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:30:45,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:30:45,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:30:45,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:30:45,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:30:45,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:30:45,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:30:45,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:30:45,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:30:45,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:30:45,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:30:45,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:30:45,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:30:45,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:30:45,719 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:30:45,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:30:45,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:30:45,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:30:45,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:30:45,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:30:45,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:30:45,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:30:45,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:30:45,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:30:45,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:30:45,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:30:45,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:30:45,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:30:45,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:30:45,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:30:45,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:30:45,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:30:45,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:30:45,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:30:45,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:30:45,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:30:45,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:30:45,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:30:45,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:30:45,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:30:45,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:30:45,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:30:45,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:30:45,762 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:30:45,762 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:30:45,762 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:30:45,763 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:30:45,763 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:30:45,763 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:30:45,767 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:30:45,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:30:45,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:30:45,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:30:45,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:30:45,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:30:45,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:30:45,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:30:45,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:30:45,769 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:30:45,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:30:45,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:30:45,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:30:45,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:30:45,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:30:45,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:30:45,772 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:30:45,772 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 [2022-07-22 01:30:46,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:30:46,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:30:46,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:30:46,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:30:46,139 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:30:46,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_13.c [2022-07-22 01:30:46,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292f51274/eafe01a6fe4b4ee1adb4e1d6c5c2c0fb/FLAG6dac87609 [2022-07-22 01:30:46,505 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:30:46,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_13.c [2022-07-22 01:30:46,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292f51274/eafe01a6fe4b4ee1adb4e1d6c5c2c0fb/FLAG6dac87609 [2022-07-22 01:30:46,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292f51274/eafe01a6fe4b4ee1adb4e1d6c5c2c0fb [2022-07-22 01:30:46,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:30:46,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:30:46,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:46,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:30:46,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:30:46,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:46" (1/1) ... [2022-07-22 01:30:46,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1a37fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:46, skipping insertion in model container [2022-07-22 01:30:46,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:46" (1/1) ... [2022-07-22 01:30:46,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:30:46,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:30:47,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:47,064 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:30:47,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:47,081 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:30:47,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47 WrapperNode [2022-07-22 01:30:47,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:47,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:47,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:30:47,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:30:47,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,104 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-07-22 01:30:47,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:47,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:30:47,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:30:47,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:30:47,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:30:47,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:30:47,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:30:47,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:30:47,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (1/1) ... [2022-07-22 01:30:47,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:47,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:47,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:30:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:30:47,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:30:47,250 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:30:47,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:30:47,321 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:30:47,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:30:47,327 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:30:47,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:47 BoogieIcfgContainer [2022-07-22 01:30:47,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:30:47,329 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:30:47,329 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:30:47,331 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:30:47,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:47,332 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:30:46" (1/3) ... [2022-07-22 01:30:47,332 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41a164ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:47, skipping insertion in model container [2022-07-22 01:30:47,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:47,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:47" (2/3) ... [2022-07-22 01:30:47,333 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41a164ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:47, skipping insertion in model container [2022-07-22 01:30:47,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:47,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:47" (3/3) ... [2022-07-22 01:30:47,334 INFO L354 chiAutomizerObserver]: Analyzing ICFG NO_13.c [2022-07-22 01:30:47,375 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:30:47,376 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:30:47,376 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:30:47,376 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:30:47,376 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:30:47,376 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:30:47,376 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:30:47,376 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:30:47,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:47,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:47,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:47,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:47,397 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:47,397 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:47,398 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:30:47,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:47,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:47,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:47,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:47,399 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:47,399 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:47,403 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2#L12-2true [2022-07-22 01:30:47,403 INFO L754 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < main_~j~0#1); 8#L12true assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2#L12-2true [2022-07-22 01:30:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:30:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094414455] [2022-07-22 01:30:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:47,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:47,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:47,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-22 01:30:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:47,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844993757] [2022-07-22 01:30:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:47,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:47,510 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:47,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:47,526 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-22 01:30:47,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:47,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747375870] [2022-07-22 01:30:47,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:47,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:47,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:47,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747375870] [2022-07-22 01:30:47,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747375870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:30:47,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:30:47,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:30:47,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752924127] [2022-07-22 01:30:47,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:30:47,631 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:47,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:47,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:47,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:47,632 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:47,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:47,633 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:47,633 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2022-07-22 01:30:47,633 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:47,633 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:47,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:47,719 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:47,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:47,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:47,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:30:47,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:47,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:47,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:47,783 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: [] [2022-07-22 01:30:47,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:47,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:47,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:47,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:30:47,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:47,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:47,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:47,829 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: [] [2022-07-22 01:30:47,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:47,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:47,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:47,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:30:47,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:47,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:47,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:47,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:47,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:47,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 01:30:47,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:47,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:47,936 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:47,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:47,941 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:47,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:47,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:47,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:47,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:47,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:47,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:47,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2022-07-22 01:30:47,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:47,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:47,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:47,988 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:47,991 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:47,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:47,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 01:30:48,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:48,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:48,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:48,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 01:30:48,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:48,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:48,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:48,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,104 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:48,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:48,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:48,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 01:30:48,151 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:48,161 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:48,161 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:30:48,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,163 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 01:30:48,165 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:48,165 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:48,165 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:48,165 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-07-22 01:30:48,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,197 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:48,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:48,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:48,234 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:48,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:48,266 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 [2022-07-22 01:30:48,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:48,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 6 states. [2022-07-22 01:30:48,300 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 [2022-07-22 01:30:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-07-22 01:30:48,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-22 01:30:48,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:48,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 01:30:48,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:48,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-22 01:30:48,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:48,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-07-22 01:30:48,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:48,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-22 01:30:48,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:30:48,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:30:48,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-22 01:30:48,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:48,316 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:30:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-22 01:30:48,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-07-22 01:30:48,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-22 01:30:48,331 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:30:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:48,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:30:48,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:30:48,354 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:48,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:48,363 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2022-07-22 01:30:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:30:48,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2022-07-22 01:30:48,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:48,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2022-07-22 01:30:48,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-22 01:30:48,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:30:48,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2022-07-22 01:30:48,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:48,366 INFO L369 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2022-07-22 01:30:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-07-22 01:30:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-07-22 01:30:48,367 INFO L392 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:48,367 INFO L374 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:48,367 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:30:48,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-07-22 01:30:48,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:48,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:48,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:48,368 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:30:48,368 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:48,368 INFO L752 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 88#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 89#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 84#L12-2 [2022-07-22 01:30:48,369 INFO L754 eck$LassoCheckResult]: Loop: 84#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 85#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 84#L12-2 [2022-07-22 01:30:48,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-07-22 01:30:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283708461] [2022-07-22 01:30:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:48,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:48,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:48,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:48,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-07-22 01:30:48,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:48,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20472947] [2022-07-22 01:30:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:48,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:48,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-07-22 01:30:48,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:48,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047881388] [2022-07-22 01:30:48,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:48,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:48,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:48,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047881388] [2022-07-22 01:30:48,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047881388] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:48,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577567032] [2022-07-22 01:30:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:48,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:48,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:48,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:30:48,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:48,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 01:30:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:48,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:48,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577567032] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:48,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:48,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 01:30:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566837134] [2022-07-22 01:30:48,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:48,535 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:48,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:48,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:48,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:48,536 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:48,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:48,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:48,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2022-07-22 01:30:48,536 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:48,537 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:48,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:48,576 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:48,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,578 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 01:30:48,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:48,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:48,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:48,619 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: [] [2022-07-22 01:30:48,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-22 01:30:48,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,639 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 01:30:48,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:48,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:48,694 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:48,694 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:30:48,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,713 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 01:30:48,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:48,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:48,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,780 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:30:48,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:48,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:48,821 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:48,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-22 01:30:48,825 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:48,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:48,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:48,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:48,825 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:48,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:48,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:48,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2022-07-22 01:30:48,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:48,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:48,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:48,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:48,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:48,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,874 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:30:48,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:48,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:48,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:48,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,918 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 01:30:48,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:48,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:48,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:48,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:48,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:30:48,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:48,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:48,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:48,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:48,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:48,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:48,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:48,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:48,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:48,995 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:48,995 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:30:48,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:48,997 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:48,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:30:48,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:48,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:48,999 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:48,999 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-07-22 01:30:49,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-22 01:30:49,017 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:49,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,039 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,042 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 [2022-07-22 01:30:49,042 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2022-07-22 01:30:49,050 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 [2022-07-22 01:30:49,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:30:49,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 01:30:49,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-22 01:30:49,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-22 01:30:49,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2022-07-22 01:30:49,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:49,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2022-07-22 01:30:49,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-22 01:30:49,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:30:49,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-22 01:30:49,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:49,053 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-22 01:30:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-22 01:30:49,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-22 01:30:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-07-22 01:30:49,054 INFO L392 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-22 01:30:49,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:49,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:30:49,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:30:49,055 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:49,083 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-07-22 01:30:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 01:30:49,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2022-07-22 01:30:49,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:49,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2022-07-22 01:30:49,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-22 01:30:49,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-22 01:30:49,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2022-07-22 01:30:49,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:49,085 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-07-22 01:30:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2022-07-22 01:30:49,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-22 01:30:49,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-07-22 01:30:49,087 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-07-22 01:30:49,087 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-07-22 01:30:49,087 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:30:49,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2022-07-22 01:30:49,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:30:49,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:49,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:49,088 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2022-07-22 01:30:49,088 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:49,088 INFO L752 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 199#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 200#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 195#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 196#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 206#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 205#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 204#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 203#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 202#L12-2 [2022-07-22 01:30:49,088 INFO L754 eck$LassoCheckResult]: Loop: 202#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 201#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 202#L12-2 [2022-07-22 01:30:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2022-07-22 01:30:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153358601] [2022-07-22 01:30:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,097 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2022-07-22 01:30:49,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006847938] [2022-07-22 01:30:49,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2022-07-22 01:30:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066005357] [2022-07-22 01:30:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066005357] [2022-07-22 01:30:49,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066005357] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975464068] [2022-07-22 01:30:49,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:30:49,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:49,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,180 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 01:30:49,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:30:49,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:30:49,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975464068] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:49,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:49,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 01:30:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361090599] [2022-07-22 01:30:49,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:49,296 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:49,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:49,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:49,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:49,296 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:49,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:49,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:49,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2022-07-22 01:30:49,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:49,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:49,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:49,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:49,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,367 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:49,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:49,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 01:30:49,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,410 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 01:30:49,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:49,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:49,447 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:49,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,453 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:49,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:49,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:49,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:49,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:49,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:49,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:49,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2022-07-22 01:30:49,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:49,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:49,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,497 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:49,497 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:49,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,499 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 01:30:49,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:49,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:49,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:49,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:49,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:49,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:49,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:49,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:49,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:49,543 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:49,543 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:30:49,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,545 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 01:30:49,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:49,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:49,546 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:49,546 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2022-07-22 01:30:49,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,568 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,596 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,598 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 [2022-07-22 01:30:49,599 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,604 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2022-07-22 01:30:49,604 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 [2022-07-22 01:30:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 01:30:49,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-22 01:30:49,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,605 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,629 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,631 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:30:49,631 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2022-07-22 01:30:49,635 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 [2022-07-22 01:30:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 01:30:49,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-22 01:30:49,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,636 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:49,659 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:49,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:49,661 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:30:49,662 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 19 transitions. Complement of second has 4 states. [2022-07-22 01:30:49,668 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 [2022-07-22 01:30:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-22 01:30:49,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-22 01:30:49,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-22 01:30:49,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-22 01:30:49,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:49,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-07-22 01:30:49,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:49,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2022-07-22 01:30:49,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:30:49,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-22 01:30:49,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2022-07-22 01:30:49,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:49,673 INFO L369 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-22 01:30:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2022-07-22 01:30:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-07-22 01:30:49,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-07-22 01:30:49,675 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-22 01:30:49,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:49,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 01:30:49,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:30:49,676 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:49,699 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-07-22 01:30:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 01:30:49,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2022-07-22 01:30:49,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:49,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2022-07-22 01:30:49,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-22 01:30:49,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-07-22 01:30:49,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2022-07-22 01:30:49,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:49,702 INFO L369 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-07-22 01:30:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2022-07-22 01:30:49,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-07-22 01:30:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-07-22 01:30:49,704 INFO L392 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-07-22 01:30:49,704 INFO L374 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-07-22 01:30:49,704 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:30:49,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2022-07-22 01:30:49,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:49,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:49,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:49,705 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2022-07-22 01:30:49,705 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:49,705 INFO L752 eck$LassoCheckResult]: Stem: 513#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 514#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 515#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 516#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 508#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 509#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 532#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 531#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 530#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 529#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 528#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 527#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 526#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 525#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 524#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 523#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 522#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 521#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 520#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 519#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 518#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 512#L12 [2022-07-22 01:30:49,705 INFO L754 eck$LassoCheckResult]: Loop: 512#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 517#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 512#L12 [2022-07-22 01:30:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2022-07-22 01:30:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862222222] [2022-07-22 01:30:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,719 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:49,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-22 01:30:49,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232577897] [2022-07-22 01:30:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:49,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:49,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2022-07-22 01:30:49,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:49,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534128990] [2022-07-22 01:30:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:49,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,773 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:49,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:49,797 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:49,797 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:49,797 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:49,797 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:49,797 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:49,797 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,797 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:49,797 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:49,797 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2022-07-22 01:30:49,797 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:49,798 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:49,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:49,832 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:49,832 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:49,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,833 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-22 01:30:49,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:49,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:49,856 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:49,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:30:49,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,875 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-22 01:30:49,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:49,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:49,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:49,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:30:49,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:49,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:49,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:49,952 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:49,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-22 01:30:49,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:49,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:50,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,043 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:50,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:50,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-22 01:30:50,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:50,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:50,130 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:50,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:50,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:50,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:50,130 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:50,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:50,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:50,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2022-07-22 01:30:50,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:50,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:50,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,180 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:50,180 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:50,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,181 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-22 01:30:50,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:50,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:50,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:50,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:50,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:50,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:50,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:50,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:50,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-22 01:30:50,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,225 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-22 01:30:50,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:50,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:50,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:50,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:50,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:50,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:50,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:50,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:50,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:50,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,308 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-22 01:30:50,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:50,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:50,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:50,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:50,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:50,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:50,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:50,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:50,333 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:50,336 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:50,336 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:30:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,337 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-22 01:30:50,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:50,339 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:50,339 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:50,339 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 01:30:50,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-22 01:30:50,355 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:50,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:50,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:50,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:50,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:50,451 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 [2022-07-22 01:30:50,451 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:50,462 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2022-07-22 01:30:50,463 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 [2022-07-22 01:30:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:30:50,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2022-07-22 01:30:50,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:50,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2022-07-22 01:30:50,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:50,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2022-07-22 01:30:50,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:50,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2022-07-22 01:30:50,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:50,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2022-07-22 01:30:50,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-22 01:30:50,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:30:50,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2022-07-22 01:30:50,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:50,485 INFO L369 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-07-22 01:30:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2022-07-22 01:30:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-07-22 01:30:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-07-22 01:30:50,487 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-07-22 01:30:50,487 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-07-22 01:30:50,487 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:30:50,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2022-07-22 01:30:50,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:50,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:50,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:50,488 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2022-07-22 01:30:50,488 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:30:50,488 INFO L752 eck$LassoCheckResult]: Stem: 665#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 666#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 661#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 662#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 667#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 668#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 663#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 664#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 687#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 686#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 685#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 684#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 682#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 681#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 680#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 678#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 677#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 676#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 675#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 674#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 671#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 669#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 670#L12 [2022-07-22 01:30:50,488 INFO L754 eck$LassoCheckResult]: Loop: 670#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 672#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 670#L12 [2022-07-22 01:30:50,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:50,488 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2022-07-22 01:30:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:50,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349966296] [2022-07-22 01:30:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:50,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:50,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:50,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349966296] [2022-07-22 01:30:50,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349966296] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:50,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233310508] [2022-07-22 01:30:50,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 01:30:50,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:50,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,576 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-07-22 01:30:50,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-07-22 01:30:50,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:30:50,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 01:30:50,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:50,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:50,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233310508] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:50,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:50,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-07-22 01:30:50,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698593870] [2022-07-22 01:30:50,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:50,812 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:30:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-07-22 01:30:50,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:50,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109354100] [2022-07-22 01:30:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:50,815 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:50,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:50,832 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:50,832 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:50,832 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:50,832 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:50,832 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:50,832 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:50,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:50,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2022-07-22 01:30:50,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:50,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:50,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:50,885 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:50,886 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:50,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,899 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 01:30:50,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:50,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:50,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:50,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:50,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:50,958 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:50,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:30:50,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:50,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:51,006 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:51,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-22 01:30:51,019 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:51,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:51,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:51,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:51,019 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:51,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:51,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:51,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:51,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2022-07-22 01:30:51,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:51,019 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:51,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:51,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:51,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:51,067 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:51,067 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:51,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:51,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:51,084 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:51,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:51,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:51,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:51,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:51,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:51,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:51,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:51,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:30:51,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:51,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:51,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:51,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:51,156 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:51,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-22 01:30:51,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:51,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:51,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:51,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:51,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:51,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:51,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:51,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:51,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:51,201 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:30:51,202 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:30:51,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:51,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:51,215 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:51,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:51,229 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:51,229 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:51,229 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 01:30:51,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:30:51,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:51,251 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:51,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:51,308 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 [2022-07-22 01:30:51,308 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,315 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2022-07-22 01:30:51,315 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 [2022-07-22 01:30:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:30:51,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2022-07-22 01:30:51,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:51,316 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,360 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:51,370 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:30:51,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2022-07-22 01:30:51,385 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 [2022-07-22 01:30:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 01:30:51,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2022-07-22 01:30:51,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:51,386 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,452 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:51,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:51,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:51,468 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:30:51,468 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,488 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2022-07-22 01:30:51,488 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 [2022-07-22 01:30:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-22 01:30:51,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2022-07-22 01:30:51,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:51,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2022-07-22 01:30:51,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:51,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2022-07-22 01:30:51,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:51,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2022-07-22 01:30:51,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-22 01:30:51,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2022-07-22 01:30:51,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:30:51,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:30:51,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2022-07-22 01:30:51,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:51,501 INFO L369 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-07-22 01:30:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2022-07-22 01:30:51,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-07-22 01:30:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-07-22 01:30:51,506 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-07-22 01:30:51,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:51,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 01:30:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-22 01:30:51,508 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:51,590 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-07-22 01:30:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 01:30:51,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2022-07-22 01:30:51,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:51,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2022-07-22 01:30:51,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:30:51,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:30:51,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2022-07-22 01:30:51,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:51,593 INFO L369 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2022-07-22 01:30:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2022-07-22 01:30:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-07-22 01:30:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-07-22 01:30:51,600 INFO L392 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-07-22 01:30:51,600 INFO L374 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-07-22 01:30:51,600 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:30:51,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2022-07-22 01:30:51,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:51,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:51,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:51,605 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2022-07-22 01:30:51,605 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-07-22 01:30:51,605 INFO L752 eck$LassoCheckResult]: Stem: 1337#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1338#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1333#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1334#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1339#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1340#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1335#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1336#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1382#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1381#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1380#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1379#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1378#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1377#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1376#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1375#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1374#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1373#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1372#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1371#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1370#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1369#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1368#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1367#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1366#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1365#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1364#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1363#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1362#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1361#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1360#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1359#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1358#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1357#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1356#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1355#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1354#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1353#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1352#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1351#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1350#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1349#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1348#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1347#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1346#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1345#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1344#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1343#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1341#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1342#L12 [2022-07-22 01:30:51,605 INFO L754 eck$LassoCheckResult]: Loop: 1342#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1344#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1343#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1341#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1342#L12 [2022-07-22 01:30:51,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:51,610 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2022-07-22 01:30:51,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:51,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334396276] [2022-07-22 01:30:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:51,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:51,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334396276] [2022-07-22 01:30:51,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334396276] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008019510] [2022-07-22 01:30:51,971 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 01:30:51,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:51,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:51,972 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:30:51,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-07-22 01:30:52,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 01:30:52,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:30:52,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 01:30:52,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:52,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:52,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008019510] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:52,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:52,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2022-07-22 01:30:52,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124810230] [2022-07-22 01:30:52,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:52,763 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:30:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2022-07-22 01:30:52,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:52,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984107499] [2022-07-22 01:30:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:52,767 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:52,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:52,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:52,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-22 01:30:52,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 01:30:52,837 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:52,965 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2022-07-22 01:30:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-22 01:30:52,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2022-07-22 01:30:52,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:52,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2022-07-22 01:30:52,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:30:52,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:30:52,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2022-07-22 01:30:52,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:52,967 INFO L369 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2022-07-22 01:30:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2022-07-22 01:30:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-07-22 01:30:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:52,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2022-07-22 01:30:52,971 INFO L392 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2022-07-22 01:30:52,971 INFO L374 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2022-07-22 01:30:52,971 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:30:52,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2022-07-22 01:30:52,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:52,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:52,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:52,973 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2022-07-22 01:30:52,974 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-07-22 01:30:52,974 INFO L752 eck$LassoCheckResult]: Stem: 1849#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1845#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1846#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1851#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1852#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1847#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1848#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1942#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1941#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1940#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1939#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1938#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1937#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1936#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1935#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1934#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1933#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1932#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1931#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1930#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1929#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1928#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1927#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1926#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1925#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1924#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1923#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1922#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1921#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1920#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1919#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1918#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1917#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1916#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1915#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1914#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1913#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1912#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1911#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1910#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1909#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1908#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1907#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1906#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1905#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1904#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1903#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1902#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1901#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1900#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1899#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1898#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1897#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1896#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1895#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1894#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1893#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1892#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1891#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1890#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1889#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1888#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1887#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1886#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1885#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1884#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1883#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1882#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1881#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1880#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1879#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1878#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1877#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1876#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1875#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1874#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1873#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1872#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1871#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1870#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1869#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1868#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1867#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1866#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1865#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1864#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1863#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1862#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1861#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1860#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1859#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1858#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1857#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1856#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1855#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1853#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1854#L12 [2022-07-22 01:30:52,974 INFO L754 eck$LassoCheckResult]: Loop: 1854#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1856#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1855#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1853#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1854#L12 [2022-07-22 01:30:52,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:52,974 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2022-07-22 01:30:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:52,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112082447] [2022-07-22 01:30:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:52,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:53,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112082447] [2022-07-22 01:30:53,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112082447] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53073725] [2022-07-22 01:30:53,775 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 01:30:53,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:53,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:53,776 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:30:53,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-07-22 01:30:53,837 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2022-07-22 01:30:53,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:30:53,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-22 01:30:53,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:53,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:54,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53073725] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:54,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:54,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2022-07-22 01:30:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099588416] [2022-07-22 01:30:54,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:54,167 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:30:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2022-07-22 01:30:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102317338] [2022-07-22 01:30:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,170 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:54,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-07-22 01:30:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2022-07-22 01:30:54,204 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 51 states, 51 states have (on average 2.019607843137255) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:54,301 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2022-07-22 01:30:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-07-22 01:30:54,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2022-07-22 01:30:54,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:54,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 105 states and 107 transitions. [2022-07-22 01:30:54,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:30:54,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:30:54,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 107 transitions. [2022-07-22 01:30:54,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:54,303 INFO L369 hiAutomatonCegarLoop]: Abstraction has 105 states and 107 transitions. [2022-07-22 01:30:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 107 transitions. [2022-07-22 01:30:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-07-22 01:30:54,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 103 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:54,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2022-07-22 01:30:54,306 INFO L392 hiAutomatonCegarLoop]: Abstraction has 104 states and 106 transitions. [2022-07-22 01:30:54,307 INFO L374 stractBuchiCegarLoop]: Abstraction has 104 states and 106 transitions. [2022-07-22 01:30:54,307 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:30:54,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 106 transitions. [2022-07-22 01:30:54,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:30:54,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:54,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:54,308 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [51, 49, 1, 1, 1] [2022-07-22 01:30:54,308 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-07-22 01:30:54,309 INFO L752 eck$LassoCheckResult]: Stem: 2685#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2686#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2681#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2682#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2687#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2688#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2684#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2784#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2783#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2782#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2781#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2780#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2779#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2778#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2777#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2776#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2775#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2774#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2773#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2772#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2771#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2770#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2769#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2768#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2767#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2766#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2765#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2764#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2763#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2762#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2761#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2760#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2759#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2758#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2757#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2756#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2755#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2754#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2753#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2752#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2751#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2750#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2749#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2748#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2747#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2746#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2745#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2744#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2743#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2742#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2741#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2740#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2739#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2738#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2737#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2736#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2735#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2734#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2733#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2732#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2731#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2730#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2729#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2728#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2727#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2726#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2725#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2724#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2723#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2722#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2721#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2720#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2719#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2718#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2717#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2716#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2715#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2714#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2713#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2712#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2711#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2710#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2709#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2708#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2707#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2706#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2705#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2704#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2703#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2702#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2701#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2700#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2699#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2698#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2697#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2696#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2695#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2694#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2693#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2692#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2691#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2689#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2690#L12 [2022-07-22 01:30:54,309 INFO L754 eck$LassoCheckResult]: Loop: 2690#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2692#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2691#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2689#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2690#L12 [2022-07-22 01:30:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1994822288, now seen corresponding path program 6 times [2022-07-22 01:30:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:54,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610364441] [2022-07-22 01:30:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,343 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2022-07-22 01:30:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:54,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135254901] [2022-07-22 01:30:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,370 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445560, now seen corresponding path program 7 times [2022-07-22 01:30:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:54,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102930124] [2022-07-22 01:30:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:54,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:56,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:30:56 BoogieIcfgContainer [2022-07-22 01:30:56,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:30:56,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:30:56,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:30:56,095 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:30:56,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:47" (3/4) ... [2022-07-22 01:30:56,097 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 01:30:56,136 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 01:30:56,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:30:56,136 INFO L158 Benchmark]: Toolchain (without parser) took 9184.08ms. Allocated memory was 50.3MB in the beginning and 107.0MB in the end (delta: 56.6MB). Free memory was 27.6MB in the beginning and 74.3MB in the end (delta: -46.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,136 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:30:56,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 120.89ms. Allocated memory is still 50.3MB. Free memory was 27.4MB in the beginning and 30.4MB in the end (delta: -3.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.29ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 30.4MB in the beginning and 45.4MB in the end (delta: -15.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,137 INFO L158 Benchmark]: Boogie Preprocessor took 16.81ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 44.4MB in the end (delta: 978.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,137 INFO L158 Benchmark]: RCFGBuilder took 202.85ms. Allocated memory is still 60.8MB. Free memory was 44.4MB in the beginning and 36.6MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,138 INFO L158 Benchmark]: BuchiAutomizer took 8765.45ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 36.4MB in the beginning and 78.5MB in the end (delta: -42.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,138 INFO L158 Benchmark]: Witness Printer took 41.08ms. Allocated memory is still 107.0MB. Free memory was 77.5MB in the beginning and 74.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 01:30:56,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 120.89ms. Allocated memory is still 50.3MB. Free memory was 27.4MB in the beginning and 30.4MB in the end (delta: -3.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.29ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 30.4MB in the beginning and 45.4MB in the end (delta: -15.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.81ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 44.4MB in the end (delta: 978.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 202.85ms. Allocated memory is still 60.8MB. Free memory was 44.4MB in the beginning and 36.6MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 8765.45ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 36.4MB in the beginning and 78.5MB in the end (delta: -42.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 41.08ms. Allocated memory is still 107.0MB. Free memory was 77.5MB in the beginning and 74.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * j + 103 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 103 and consists of 3 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 103 and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 51 locations. The remainder module has 104 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.7s and 8 iterations. TraceHistogramMax:51. Analysis of lassos took 7.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 54 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf106 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {j=52, i=48, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 01:30:56,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:56,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:56,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:56,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-22 01:30:57,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-22 01:30:57,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)