./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loop-invgen/up.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:20:48,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:20:48,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:20:48,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:20:48,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:20:48,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:20:48,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:20:48,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:20:48,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:20:48,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:20:48,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:20:48,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:20:48,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:20:48,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:20:48,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:20:48,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:20:48,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:20:48,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:20:48,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:20:48,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:20:48,450 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:20:48,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:20:48,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:20:48,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:20:48,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:20:48,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:20:48,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:20:48,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:20:48,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:20:48,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:20:48,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:20:48,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:20:48,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:20:48,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:20:48,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:20:48,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:20:48,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:20:48,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:20:48,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:20:48,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:20:48,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:20:48,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:20:48,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:20:48,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:20:48,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:20:48,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:20:48,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:20:48,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:20:48,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:20:48,498 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:20:48,498 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:20:48,498 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:20:48,499 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:20:48,499 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:20:48,508 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:20:48,508 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:20:48,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:20:48,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:20:48,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:20:48,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:20:48,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:20:48,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:20:48,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:20:48,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:20:48,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:20:48,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:20:48,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:20:48,511 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:20:48,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:20:48,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:20:48,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:20:48,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:20:48,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:20:48,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:20:48,514 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:20:48,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f [2022-07-22 02:20:48,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:20:48,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:20:48,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:20:48,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:20:48,822 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:20:48,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/up.i [2022-07-22 02:20:48,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fee1508/66346eca0947405b8558be8322e15a7c/FLAG90a3f0d28 [2022-07-22 02:20:49,386 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:20:49,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i [2022-07-22 02:20:49,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fee1508/66346eca0947405b8558be8322e15a7c/FLAG90a3f0d28 [2022-07-22 02:20:49,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fee1508/66346eca0947405b8558be8322e15a7c [2022-07-22 02:20:49,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:20:49,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:20:49,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:49,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:20:49,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:20:49,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:49" (1/1) ... [2022-07-22 02:20:49,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed67435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:49, skipping insertion in model container [2022-07-22 02:20:49,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:49" (1/1) ... [2022-07-22 02:20:49,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:20:49,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:20:50,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i[893,906] [2022-07-22 02:20:50,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:50,035 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:20:50,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i[893,906] [2022-07-22 02:20:50,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:50,084 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:20:50,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50 WrapperNode [2022-07-22 02:20:50,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:50,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:50,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:20:50,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:20:50,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,116 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-07-22 02:20:50,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:50,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:20:50,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:20:50,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:20:50,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:20:50,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:20:50,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:20:50,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:20:50,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (1/1) ... [2022-07-22 02:20:50,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:50,193 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 02:20:50,215 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 02:20:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:20:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:20:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:20:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:20:50,298 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:20:50,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:20:50,405 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:20:50,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:20:50,411 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 02:20:50,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:50 BoogieIcfgContainer [2022-07-22 02:20:50,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:20:50,414 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:20:50,414 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:20:50,416 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:20:50,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:50,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:20:49" (1/3) ... [2022-07-22 02:20:50,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6732f33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:50, skipping insertion in model container [2022-07-22 02:20:50,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:50,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:50" (2/3) ... [2022-07-22 02:20:50,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6732f33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:50, skipping insertion in model container [2022-07-22 02:20:50,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:50,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:50" (3/3) ... [2022-07-22 02:20:50,420 INFO L354 chiAutomizerObserver]: Analyzing ICFG up.i [2022-07-22 02:20:50,476 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:20:50,477 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:20:50,477 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:20:50,477 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:20:50,477 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:20:50,477 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:20:50,477 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:20:50,478 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:20:50,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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 02:20:50,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-07-22 02:20:50,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:50,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:50,503 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:20:50,503 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 02:20:50,504 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:20:50,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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 02:20:50,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-07-22 02:20:50,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:50,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:50,508 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:20:50,508 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 02:20:50,513 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L29-2true [2022-07-22 02:20:50,514 INFO L754 eck$LassoCheckResult]: Loop: 11#L29-2true assume !!(main_~i~0#1 < main_~n~0#1);main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 11#L29-2true [2022-07-22 02:20:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 02:20:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355061700] [2022-07-22 02:20:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,599 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:50,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-07-22 02:20:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320412718] [2022-07-22 02:20:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,644 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-22 02:20:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181850886] [2022-07-22 02:20:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:50,742 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:50,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:50,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:50,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:50,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:50,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:50,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:50,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:50,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2022-07-22 02:20:50,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:50,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:50,767 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 02:20:50,790 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 02:20:50,796 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 02:20:50,798 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 02:20:50,849 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:50,856 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:50,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:50,860 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 02:20:50,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:50,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:50,879 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 02:20:50,904 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 02:20:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:50,907 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 02:20:50,908 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 02:20:50,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:50,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:50,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:50,945 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=3}] Lambdas: [0, 4, 1] Nus: [1, 1] [2022-07-22 02:20:50,963 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 02:20:50,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:50,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:50,966 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 02:20:50,968 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 02:20:50,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:50,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,010 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 02:20:51,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,013 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 02:20:51,014 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 02:20:51,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:51,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:51,139 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 02:20:51,140 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:51,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:51,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:51,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:51,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:51,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:51,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:51,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2022-07-22 02:20:51,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:51,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:51,142 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 02:20:51,147 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 02:20:51,152 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 02:20:51,159 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 02:20:51,200 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:51,204 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:51,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,218 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 02:20:51,222 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 02:20:51,223 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 02:20:51,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:51,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-22 02:20:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,269 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 02:20:51,271 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 02:20:51,273 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 02:20:51,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:51,313 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 02:20:51,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,315 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 02:20:51,316 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 02:20:51,320 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 02:20:51,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:51,357 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:51,358 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:51,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,367 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 02:20:51,368 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 02:20:51,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:51,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:51,370 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:51,370 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-07-22 02:20:51,398 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 02:20:51,402 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:51,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:51,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:51,470 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:51,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:51,472 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 02:20:51,499 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 02:20:51,501 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:20:51,540 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 28 states and 38 transitions. Complement of second has 5 states. [2022-07-22 02:20:51,541 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 02:20:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:20:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-07-22 02:20:51,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2022-07-22 02:20:51,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:51,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-22 02:20:51,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:51,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-22 02:20:51,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:51,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2022-07-22 02:20:51,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 02:20:51,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 10 transitions. [2022-07-22 02:20:51,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-22 02:20:51,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-07-22 02:20:51,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-07-22 02:20:51,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:51,559 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 02:20:51,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-07-22 02:20:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-07-22 02:20:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) 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 02:20:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-07-22 02:20:51,577 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 02:20:51,577 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 02:20:51,577 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:20:51,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-07-22 02:20:51,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 02:20:51,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:51,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:51,579 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 02:20:51,579 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:20:51,579 INFO L752 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 77#L29-2 assume !(main_~i~0#1 < main_~n~0#1); 75#L29-3 main_~j~0#1 := 0; 76#L34-2 [2022-07-22 02:20:51,579 INFO L754 eck$LassoCheckResult]: Loop: 76#L34-2 assume !!(main_~j~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 71#L18 assume !(0 == __VERIFIER_assert_~cond#1); 72#L18-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 76#L34-2 [2022-07-22 02:20:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2022-07-22 02:20:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:51,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225800272] [2022-07-22 02:20:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:51,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:51,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:51,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash 53850, now seen corresponding path program 1 times [2022-07-22 02:20:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:51,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955849420] [2022-07-22 02:20:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:51,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:51,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:51,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1808851250, now seen corresponding path program 1 times [2022-07-22 02:20:51,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:51,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45532391] [2022-07-22 02:20:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:51,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:51,675 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 02:20:51,735 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 02:20:51,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:51,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45532391] [2022-07-22 02:20:51,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45532391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:20:51,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:20:51,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 02:20:51,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679532832] [2022-07-22 02:20:51,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:20:51,825 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:51,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:51,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:51,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:51,826 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:51,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:51,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:51,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2022-07-22 02:20:51,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:51,826 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:51,827 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 02:20:51,832 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 02:20:51,836 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 02:20:51,838 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 02:20:51,842 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 02:20:51,885 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:51,885 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:51,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,887 INFO L229 MonitoredProcess]: Starting monitored process 10 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 02:20:51,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 02:20:51,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:51,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:51,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,932 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 02:20:51,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:51,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,951 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 02:20:52,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:52,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:52,065 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:52,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:52,066 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:52,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:52,066 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:52,066 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:52,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:52,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:52,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2022-07-22 02:20:52,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:52,066 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:52,067 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 02:20:52,073 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 02:20:52,078 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 02:20:52,080 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 02:20:52,085 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 02:20:52,133 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:52,133 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:52,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:52,144 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 02:20:52,145 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 02:20:52,146 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 02:20:52,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:52,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:52,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:52,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:52,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:52,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:52,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:52,169 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:52,175 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:52,175 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:52,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:52,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:52,177 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 02:20:52,178 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 02:20:52,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:52,179 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:52,179 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:52,179 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 02:20:52,197 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 02:20:52,198 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:52,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:52,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:52,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:52,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:52,251 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 02:20:52,252 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 02:20:52,252 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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 02:20:52,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 11 states and 14 transitions. Complement of second has 4 states. [2022-07-22 02:20:52,261 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 02:20:52,262 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 02:20:52,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-22 02:20:52,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-22 02:20:52,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 02:20:52,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-22 02:20:52,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-07-22 02:20:52,266 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:52,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-22 02:20:52,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:20:52,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:20:52,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:20:52,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:52,269 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:52,269 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:52,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 02:20:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 02:20:52,272 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) 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 02:20:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:52,275 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-22 02:20:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 02:20:52,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-22 02:20:52,277 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:52,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 02:20:52,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:20:52,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:20:52,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:20:52,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:52,277 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:52,277 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:52,277 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:52,278 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:20:52,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:20:52,278 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:52,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:20:52,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:20:52 BoogieIcfgContainer [2022-07-22 02:20:52,288 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:20:52,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:20:52,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:20:52,288 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:20:52,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:50" (3/4) ... [2022-07-22 02:20:52,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:20:52,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:20:52,291 INFO L158 Benchmark]: Toolchain (without parser) took 2415.31ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.3MB in the beginning and 25.8MB in the end (delta: 9.5MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-07-22 02:20:52,292 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:52,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.63ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.9MB in the end (delta: -4.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 02:20:52,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.87ms. Allocated memory is still 56.6MB. Free memory was 39.9MB in the beginning and 38.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:52,293 INFO L158 Benchmark]: Boogie Preprocessor took 30.58ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 37.4MB in the end (delta: 982.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:52,293 INFO L158 Benchmark]: RCFGBuilder took 264.30ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 28.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:20:52,293 INFO L158 Benchmark]: BuchiAutomizer took 1874.24ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 28.8MB in the beginning and 26.2MB in the end (delta: 2.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-22 02:20:52,294 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 69.2MB. Free memory was 26.2MB in the beginning and 25.8MB in the end (delta: 406.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:52,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.63ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.9MB in the end (delta: -4.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.87ms. Allocated memory is still 56.6MB. Free memory was 39.9MB in the beginning and 38.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.58ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 37.4MB in the end (delta: 982.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.30ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 28.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1874.24ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 28.8MB in the beginning and 26.2MB in the end (delta: 2.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 69.2MB. Free memory was 26.2MB in the beginning and 25.8MB in the end (delta: 406.2kB). There was no memory consumed. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 4 locations. One deterministic module has affine ranking function -1 * j + n and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:20:52,318 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 02:20:52,545 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 Result: TRUE