./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/loops/sum01_bug02_sum01_bug02_base.case.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 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:58:10,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:58:10,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:58:10,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:58:10,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:58:10,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:58:10,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:58:10,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:58:10,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:58:10,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:58:10,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:58:10,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:58:10,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:58:10,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:58:10,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:58:10,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:58:10,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:58:10,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:58:10,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:58:10,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:58:10,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:58:10,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:58:10,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:58:10,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:58:10,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:58:10,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:58:10,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:58:10,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:58:10,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:58:10,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:58:10,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:58:10,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:58:10,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:58:10,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:58:10,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:58:10,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:58:10,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:58:10,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:58:10,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:58:10,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:58:10,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:58:10,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 03:58:10,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:58:10,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:58:10,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:58:10,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:58:10,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:58:10,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:58:10,321 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:58:10,321 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:58:10,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:58:10,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:58:10,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:58:10,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:58:10,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:58:10,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:58:10,324 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:58:10,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:58:10,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:58:10,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:58:10,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:58:10,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:58:10,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:58:10,326 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:58:10,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2022-02-21 03:58:10,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:58:10,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:58:10,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:58:10,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:58:10,523 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:58:10,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2022-02-21 03:58:10,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f7d0704/60cbaef61edf4fb8b9772b5b97620e0b/FLAG4a98f3a78 [2022-02-21 03:58:10,931 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:58:10,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2022-02-21 03:58:10,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f7d0704/60cbaef61edf4fb8b9772b5b97620e0b/FLAG4a98f3a78 [2022-02-21 03:58:10,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f7d0704/60cbaef61edf4fb8b9772b5b97620e0b [2022-02-21 03:58:10,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:58:10,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:58:10,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:58:10,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:58:10,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:58:10,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:58:10" (1/1) ... [2022-02-21 03:58:10,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526c447c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:10, skipping insertion in model container [2022-02-21 03:58:10,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:58:10" (1/1) ... [2022-02-21 03:58:10,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:58:10,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:58:11,125 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/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2022-02-21 03:58:11,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:58:11,157 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:58:11,168 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/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2022-02-21 03:58:11,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:58:11,189 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:58:11,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11 WrapperNode [2022-02-21 03:58:11,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:58:11,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:58:11,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:58:11,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:58:11,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,216 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-02-21 03:58:11,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:58:11,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:58:11,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:58:11,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:58:11,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:58:11,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:58:11,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:58:11,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:58:11,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (1/1) ... [2022-02-21 03:58:11,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:11,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:11,267 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) [2022-02-21 03:58:11,270 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 [2022-02-21 03:58:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:58:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:58:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:58:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:58:11,333 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:58:11,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:58:11,463 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:58:11,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:58:11,468 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:58:11,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:11 BoogieIcfgContainer [2022-02-21 03:58:11,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:58:11,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:58:11,471 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:58:11,474 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:58:11,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:11,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:58:10" (1/3) ... [2022-02-21 03:58:11,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@149b597d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:58:11, skipping insertion in model container [2022-02-21 03:58:11,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:11,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:58:11" (2/3) ... [2022-02-21 03:58:11,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@149b597d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:58:11, skipping insertion in model container [2022-02-21 03:58:11,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:58:11,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:11" (3/3) ... [2022-02-21 03:58:11,478 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2022-02-21 03:58:11,525 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:58:11,525 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:58:11,525 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:58:11,526 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:58:11,526 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:58:11,526 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:58:11,526 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:58:11,526 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:58:11,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-02-21 03:58:11,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:11,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:11,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:11,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:58:11,563 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:11,563 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:58:11,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-02-21 03:58:11,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:11,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:11,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:11,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:58:11,568 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:11,573 INFO L791 eck$LassoCheckResult]: Stem: 6#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(36, 2); 10#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_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 11#L24-3true [2022-02-21 03:58:11,574 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-3true assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 9#L26true assume 4 == main_~i~0#1;main_~sn~0#1 := -10; 7#L24-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 11#L24-3true [2022-02-21 03:58:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:58:11,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:11,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971933845] [2022-02-21 03:58:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:11,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:11,700 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:11,720 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:11,723 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2022-02-21 03:58:11,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:11,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145244738] [2022-02-21 03:58:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:11,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:11,730 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:11,735 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2022-02-21 03:58:11,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:11,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107160936] [2022-02-21 03:58:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:11,844 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#true} 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(36, 2); {20#true} is VALID [2022-02-21 03:58:11,846 INFO L290 TraceCheckUtils]: 1: Hoare triple {20#true} 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_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {22#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} is VALID [2022-02-21 03:58:11,849 INFO L290 TraceCheckUtils]: 2: Hoare triple {22#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; {22#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} is VALID [2022-02-21 03:58:11,851 INFO L290 TraceCheckUtils]: 3: Hoare triple {22#(= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|))} assume 4 == main_~i~0#1;main_~sn~0#1 := -10; {21#false} is VALID [2022-02-21 03:58:11,851 INFO L290 TraceCheckUtils]: 4: Hoare triple {21#false} main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; {21#false} is VALID [2022-02-21 03:58:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:58:11,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:58:11,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107160936] [2022-02-21 03:58:11,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107160936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:58:11,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:58:11,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:58:11,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125594704] [2022-02-21 03:58:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:58:11,925 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:11,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:11,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:11,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:11,926 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:58:11,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:11,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:11,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:11,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2022-02-21 03:58:11,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:11,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:11,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:11,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:11,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,026 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:12,026 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:58:12,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,029 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) [2022-02-21 03:58:12,030 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 [2022-02-21 03:58:12,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:12,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,062 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:12,062 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:58:12,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-02-21 03:58:12,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,081 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) [2022-02-21 03:58:12,082 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 [2022-02-21 03:58:12,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:12,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:12,102 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=-10} Honda state: {ULTIMATE.start_main_~sn~0#1=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:58:12,120 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 [2022-02-21 03:58:12,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,121 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) [2022-02-21 03:58:12,122 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 [2022-02-21 03:58:12,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:12,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,150 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 [2022-02-21 03:58:12,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,152 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) [2022-02-21 03:58:12,152 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 [2022-02-21 03:58:12,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:12,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,183 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:58:12,201 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 [2022-02-21 03:58:12,201 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:12,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:12,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:12,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:12,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:58:12,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:12,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:12,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2022-02-21 03:58:12,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:12,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:12,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,262 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:12,265 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:58:12,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,268 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) [2022-02-21 03:58:12,271 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 [2022-02-21 03:58:12,272 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 [2022-02-21 03:58:12,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:12,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:12,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:12,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:12,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:12,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:12,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:12,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:58:12,310 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 [2022-02-21 03:58:12,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,312 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) [2022-02-21 03:58:12,313 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 [2022-02-21 03:58:12,314 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 [2022-02-21 03:58:12,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:12,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:12,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:12,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:12,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:12,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:12,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:12,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:58:12,334 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:58:12,334 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:58:12,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,339 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) [2022-02-21 03:58:12,340 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 [2022-02-21 03:58:12,381 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:58:12,381 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:58:12,382 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:58:12,382 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2022-02-21 03:58:12,407 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 [2022-02-21 03:58:12,415 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:58:12,420 INFO L390 LassoCheck]: Loop: "assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1;" "assume 4 == main_~i~0#1;main_~sn~0#1 := -10;" "main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2022-02-21 03:58:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:12,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:58:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:12,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:12,455 INFO L290 TraceCheckUtils]: 0: Hoare triple {23#unseeded} 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(36, 2); {23#unseeded} is VALID [2022-02-21 03:58:12,455 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#unseeded} 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_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {23#unseeded} is VALID [2022-02-21 03:58:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:12,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:58:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:12,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:12,486 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9))} assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; {26#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9))} is VALID [2022-02-21 03:58:12,487 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9))} assume 4 == main_~i~0#1;main_~sn~0#1 := -10; {47#(and (<= |ULTIMATE.start_main_~i~0#1| 4) (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9)))} is VALID [2022-02-21 03:58:12,487 INFO L290 TraceCheckUtils]: 2: Hoare triple {47#(and (<= |ULTIMATE.start_main_~i~0#1| 4) (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9)))} main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; {36#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 9))) unseeded)} is VALID [2022-02-21 03:58:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:58:12,504 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,511 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:12,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,516 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 [2022-02-21 03:58:12,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 35 states and 47 transitions. Complement of second has 7 states. [2022-02-21 03:58:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-02-21 03:58:12,580 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:12,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-02-21 03:58:12,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:12,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:12,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:58:12,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:12,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:12,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 47 transitions. [2022-02-21 03:58:12,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:12,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:12,586 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-02-21 03:58:12,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,587 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:12,588 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:58:12,589 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:58:12,589 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 35 states and 47 transitions. cyclomatic complexity: 14 [2022-02-21 03:58:12,589 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:12,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 35 letters. Loop has 35 letters. [2022-02-21 03:58:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 35 letters. Loop has 35 letters. [2022-02-21 03:58:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 35 letters. Loop has 35 letters. [2022-02-21 03:58:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:12,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:12,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:58:12,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:58:12,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:58:12,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:12,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:12,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:12,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:58:12,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:58:12,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:58:12,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:12,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:12,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:12,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:12,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:12,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:12,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:12,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 35 states and 47 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:12,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,625 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:12,628 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 [2022-02-21 03:58:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-02-21 03:58:12,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:58:12,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:12,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-02-21 03:58:12,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:12,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. cyclomatic complexity: 14 [2022-02-21 03:58:12,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 15 transitions. [2022-02-21 03:58:12,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-02-21 03:58:12,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-02-21 03:58:12,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-02-21 03:58:12,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-02-21 03:58:12,638 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-02-21 03:58:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-02-21 03:58:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2022-02-21 03:58:12,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:58:12,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-02-21 03:58:12,652 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-02-21 03:58:12,653 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-02-21 03:58:12,655 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:12,656 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2022-02-21 03:58:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2022-02-21 03:58:12,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:12,657 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:12,657 INFO L74 IsIncluded]: Start isIncluded. First operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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 12 states and 15 transitions. [2022-02-21 03:58:12,657 INFO L87 Difference]: Start difference. First operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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 12 states and 15 transitions. [2022-02-21 03:58:12,657 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:12,658 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2022-02-21 03:58:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-02-21 03:58:12,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:12,658 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:12,658 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:58:12,658 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:58:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-02-21 03:58:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-02-21 03:58:12,660 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-02-21 03:58:12,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:58:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 03:58:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 03:58:12,662 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:58:12,677 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-02-21 03:58:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 03:58:12,677 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-02-21 03:58:12,683 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:12,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2022-02-21 03:58:12,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2022-02-21 03:58:12,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-02-21 03:58:12,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-02-21 03:58:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2022-02-21 03:58:12,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-02-21 03:58:12,689 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-02-21 03:58:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2022-02-21 03:58:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2022-02-21 03:58:12,690 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:58:12,693 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2022-02-21 03:58:12,694 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2022-02-21 03:58:12,698 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2022-02-21 03:58:12,703 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:12,704 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-02-21 03:58:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-02-21 03:58:12,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:12,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:12,704 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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 15 states and 18 transitions. [2022-02-21 03:58:12,704 INFO L87 Difference]: Start difference. First operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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 15 states and 18 transitions. [2022-02-21 03:58:12,704 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2022-02-21 03:58:12,705 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-02-21 03:58:12,705 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-02-21 03:58:12,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:58:12,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:58:12,705 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:58:12,706 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:58:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2022-02-21 03:58:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-02-21 03:58:12,706 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-02-21 03:58:12,706 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-02-21 03:58:12,706 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:58:12,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-02-21 03:58:12,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:12,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:12,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:12,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:58:12,707 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:58:12,707 INFO L791 eck$LassoCheckResult]: Stem: 176#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(36, 2); 177#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_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 185#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 182#L26 [2022-02-21 03:58:12,707 INFO L793 eck$LassoCheckResult]: Loop: 182#L26 assume !(4 == main_~i~0#1); 178#L24-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 179#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 182#L26 [2022-02-21 03:58:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:12,707 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2022-02-21 03:58:12,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:12,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843480951] [2022-02-21 03:58:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:12,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,728 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,740 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:12,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:12,741 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2022-02-21 03:58:12,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:12,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353887945] [2022-02-21 03:58:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:12,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,749 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,751 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:12,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:12,751 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2022-02-21 03:58:12,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:58:12,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099182535] [2022-02-21 03:58:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:58:12,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:58:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:58:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:58:12,776 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:58:12,795 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:12,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:12,796 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:12,796 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:12,796 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:58:12,796 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,796 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:12,796 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:12,796 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2022-02-21 03:58:12,796 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:12,796 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:12,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:12,850 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:12,850 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:58:12,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,851 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) [2022-02-21 03:58:12,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:12,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,872 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 [2022-02-21 03:58:12,892 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 [2022-02-21 03:58:12,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,904 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) [2022-02-21 03:58:12,905 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 [2022-02-21 03:58:12,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:12,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,932 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:58:12,932 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=4}, {ULTIMATE.start_main_~sn~0#1=0}, {ULTIMATE.start_main_~sn~0#1=-2}] Lambdas: [1, 6, 1] Nus: [0, 0] [2022-02-21 03:58:12,950 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 [2022-02-21 03:58:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,952 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) [2022-02-21 03:58:12,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:58:12,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:12,967 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 [2022-02-21 03:58:12,993 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 [2022-02-21 03:58:12,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:12,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:12,995 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) [2022-02-21 03:58:12,996 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 [2022-02-21 03:58:12,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:58:12,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:58:13,085 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:58:13,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-02-21 03:58:13,088 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:58:13,089 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:58:13,089 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:58:13,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:58:13,089 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:58:13,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:13,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:58:13,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:58:13,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2022-02-21 03:58:13,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:58:13,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:58:13,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:13,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:13,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:58:13,161 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:58:13,161 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:58:13,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:13,162 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) [2022-02-21 03:58:13,163 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 [2022-02-21 03:58:13,169 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 [2022-02-21 03:58:13,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:13,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:13,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:13,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:58:13,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:13,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:58:13,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:13,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:58:13,202 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 [2022-02-21 03:58:13,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:13,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:13,204 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) [2022-02-21 03:58:13,205 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 [2022-02-21 03:58:13,207 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 [2022-02-21 03:58:13,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:58:13,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:58:13,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:58:13,214 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-02-21 03:58:13,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:58:13,216 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-02-21 03:58:13,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:58:13,231 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:58:13,235 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-02-21 03:58:13,235 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-02-21 03:58:13,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:58:13,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:58:13,236 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) [2022-02-21 03:58:13,238 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 [2022-02-21 03:58:13,238 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:58:13,238 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:58:13,239 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:58:13,239 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 [] [2022-02-21 03:58:13,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-02-21 03:58:13,262 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:58:13,265 INFO L390 LassoCheck]: Loop: "assume !(4 == main_~i~0#1);" "main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1;" [2022-02-21 03:58:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:13,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:58:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:13,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:58:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:13,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:13,313 INFO L290 TraceCheckUtils]: 0: Hoare triple {256#unseeded} 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(36, 2); {256#unseeded} is VALID [2022-02-21 03:58:13,314 INFO L290 TraceCheckUtils]: 1: Hoare triple {256#unseeded} 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_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; {256#unseeded} is VALID [2022-02-21 03:58:13,314 INFO L290 TraceCheckUtils]: 2: Hoare triple {256#unseeded} assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; {256#unseeded} is VALID [2022-02-21 03:58:13,317 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 [2022-02-21 03:58:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:13,321 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:58:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:58:13,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:58:13,356 INFO L290 TraceCheckUtils]: 0: Hoare triple {259#(>= oldRank0 (+ (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~n~0#1|))} assume !(4 == main_~i~0#1); {259#(>= oldRank0 (+ (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~n~0#1|))} is VALID [2022-02-21 03:58:13,357 INFO L290 TraceCheckUtils]: 1: Hoare triple {259#(>= oldRank0 (+ (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_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; {283#(<= (+ |ULTIMATE.start_main_~n~0#1| 1) (+ |ULTIMATE.start_main_~i~0#1| oldRank0))} is VALID [2022-02-21 03:58:13,357 INFO L290 TraceCheckUtils]: 2: Hoare triple {283#(<= (+ |ULTIMATE.start_main_~n~0#1| 1) (+ |ULTIMATE.start_main_~i~0#1| oldRank0))} assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; {269#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~n~0#1|))) unseeded)} is VALID [2022-02-21 03:58:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:58:13,358 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-02-21 03:58:13,362 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:58:13,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,364 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-02-21 03:58:13,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-02-21 03:58:13,388 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 19 states and 24 transitions. Complement of second has 6 states. [2022-02-21 03:58:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-02-21 03:58:13,388 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:13,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. cyclomatic complexity: 5 [2022-02-21 03:58:13,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:13,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:13,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-02-21 03:58:13,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:13,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:58:13,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:58:13,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-02-21 03:58:13,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:13,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:13,390 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 12 states and 15 transitions. cyclomatic complexity: 5 [2022-02-21 03:58:13,391 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2022-02-21 03:58:13,391 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-02-21 03:58:13,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-02-21 03:58:13,391 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:58:13,391 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 19 states and 24 transitions. cyclomatic complexity: 7 [2022-02-21 03:58:13,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. cyclomatic complexity: 7 [2022-02-21 03:58:13,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:13,392 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:58:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 19 letters. Loop has 19 letters. [2022-02-21 03:58:13,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 19 letters. Loop has 19 letters. [2022-02-21 03:58:13,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 19 letters. Loop has 19 letters. [2022-02-21 03:58:13,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:13,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:13,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 12 letters. Loop has 12 letters. [2022-02-21 03:58:13,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:58:13,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:58:13,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:58:13,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:13,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:13,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:58:13,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:13,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:13,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:58:13,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 15 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 24 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2022-02-21 03:58:13,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,398 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:58:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-02-21 03:58:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-02-21 03:58:13,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:58:13,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2022-02-21 03:58:13,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2022-02-21 03:58:13,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:58:13,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. cyclomatic complexity: 7 [2022-02-21 03:58:13,400 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:13,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:58:13,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:58:13,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:58:13,400 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 03:58:13,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:58:13,400 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:58:13,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:58:13,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:58:13 BoogieIcfgContainer [2022-02-21 03:58:13,405 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:58:13,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:58:13,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:58:13,405 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:58:13,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:58:11" (3/4) ... [2022-02-21 03:58:13,407 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:58:13,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:58:13,408 INFO L158 Benchmark]: Toolchain (without parser) took 2452.84ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.9MB in the beginning and 57.9MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:13,408 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:13,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.8MB in the beginning and 70.3MB in the end (delta: -29.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-02-21 03:58:13,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.88ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 68.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:58:13,409 INFO L158 Benchmark]: Boogie Preprocessor took 21.51ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.9MB in the end (delta: 895.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:13,409 INFO L158 Benchmark]: RCFGBuilder took 229.88ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 58.6MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:58:13,409 INFO L158 Benchmark]: BuchiAutomizer took 1933.56ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 57.9MB in the end (delta: 429.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:13,409 INFO L158 Benchmark]: Witness Printer took 1.93ms. Allocated memory is still 92.3MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:58:13,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.8MB in the beginning and 70.3MB in the end (delta: -29.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.88ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 68.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.51ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.9MB in the end (delta: 895.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 229.88ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 58.6MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1933.56ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 57.9MB in the end (delta: 429.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 1.93ms. Allocated memory is still 92.3MB. Free memory is still 57.9MB. 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 -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function -1 * i + n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 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, 17 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 14 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf132 smp100 tf107 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:58:13,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE