./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/floats-cdfpl/square_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/floats-cdfpl/square_4.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 7a48c5cd45981ad19c66d741a4ad9a0eb2d2fb135a3f4c24edf8153a131c05f3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:15:27,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:15:27,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:15:27,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:15:27,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:15:27,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:15:27,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:15:27,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:15:27,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:15:27,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:15:27,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:15:27,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:15:27,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:15:27,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:15:27,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:15:27,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:15:27,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:15:27,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:15:27,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:15:27,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:15:27,081 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:15:27,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:15:27,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:15:27,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:15:27,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:15:27,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:15:27,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:15:27,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:15:27,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:15:27,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:15:27,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:15:27,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:15:27,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:15:27,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:15:27,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:15:27,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:15:27,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:15:27,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:15:27,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:15:27,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:15:27,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:15:27,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:15:27,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:15:27,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:15:27,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:15:27,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:15:27,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:15:27,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:15:27,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:15:27,139 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:15:27,139 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:15:27,139 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:15:27,140 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:15:27,140 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:15:27,140 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:15:27,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:15:27,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:15:27,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:15:27,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:15:27,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:15:27,142 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:15:27,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:15:27,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:15:27,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:15:27,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:15:27,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:15:27,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:15:27,144 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:15:27,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a48c5cd45981ad19c66d741a4ad9a0eb2d2fb135a3f4c24edf8153a131c05f3 [2022-07-22 02:15:27,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:15:27,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:15:27,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:15:27,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:15:27,429 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:15:27,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/square_4.i [2022-07-22 02:15:27,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a2f5296/43fee3b257a44af9aef82ab6af493848/FLAGcc7399d37 [2022-07-22 02:15:27,794 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:15:27,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/square_4.i [2022-07-22 02:15:27,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a2f5296/43fee3b257a44af9aef82ab6af493848/FLAGcc7399d37 [2022-07-22 02:15:28,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a2f5296/43fee3b257a44af9aef82ab6af493848 [2022-07-22 02:15:28,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:15:28,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:15:28,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:15:28,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:15:28,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:15:28,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1eeb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28, skipping insertion in model container [2022-07-22 02:15:28,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:15:28,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:15:28,342 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/floats-cdfpl/square_4.i[1629,1642] [2022-07-22 02:15:28,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:15:28,348 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:15:28,358 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/floats-cdfpl/square_4.i[1629,1642] [2022-07-22 02:15:28,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:15:28,366 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:15:28,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28 WrapperNode [2022-07-22 02:15:28,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:15:28,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:15:28,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:15:28,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:15:28,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,410 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-07-22 02:15:28,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:15:28,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:15:28,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:15:28,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:15:28,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:15:28,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:15:28,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:15:28,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:15:28,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (1/1) ... [2022-07-22 02:15:28,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:15:28,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:15:28,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:15:28,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:15:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:15:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:15:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:15:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:15:28,515 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:15:28,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:15:28,603 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:15:28,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:15:28,609 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 02:15:28,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:28 BoogieIcfgContainer [2022-07-22 02:15:28,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:15:28,611 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:15:28,611 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:15:28,613 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:15:28,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:28,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:15:28" (1/3) ... [2022-07-22 02:15:28,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63776fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:15:28, skipping insertion in model container [2022-07-22 02:15:28,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:28,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:28" (2/3) ... [2022-07-22 02:15:28,616 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63776fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:15:28, skipping insertion in model container [2022-07-22 02:15:28,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:28,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:28" (3/3) ... [2022-07-22 02:15:28,617 INFO L354 chiAutomizerObserver]: Analyzing ICFG square_4.i [2022-07-22 02:15:28,667 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:15:28,667 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:15:28,667 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:15:28,667 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:15:28,667 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:15:28,667 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:15:28,667 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:15:28,668 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:15:28,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:15:28,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:15:28,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:15:28,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:15:28 BoogieIcfgContainer [2022-07-22 02:15:28,690 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:15:28,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:15:28,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:15:28,691 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:15:28,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:28" (3/4) ... [2022-07-22 02:15:28,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:15:28,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:15:28,696 INFO L158 Benchmark]: Toolchain (without parser) took 462.48ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 29.5MB in the end (delta: 10.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-22 02:15:28,697 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:15:28,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.13ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 29.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:15:28,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.09ms. Allocated memory is still 60.8MB. Free memory was 29.9MB in the beginning and 44.1MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:15:28,700 INFO L158 Benchmark]: Boogie Preprocessor took 10.41ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 43.2MB in the end (delta: 938.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:15:28,701 INFO L158 Benchmark]: RCFGBuilder took 188.14ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 35.0MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 02:15:28,701 INFO L158 Benchmark]: BuchiAutomizer took 78.67ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 29.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 02:15:28,702 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 60.8MB. Free memory was 29.7MB in the beginning and 29.5MB in the end (delta: 224.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:15:28,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.13ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 29.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.09ms. Allocated memory is still 60.8MB. Free memory was 29.9MB in the beginning and 44.1MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.41ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 43.2MB in the end (delta: 938.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 188.14ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 35.0MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 78.67ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 29.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 60.8MB. Free memory was 29.7MB in the beginning and 29.5MB in the end (delta: 224.3kB). 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 Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:15:28,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE