./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/bhmr2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/bhmr2007.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 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:49:43,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:49:43,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:49:44,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:49:44,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:49:44,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:49:44,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:49:44,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:49:44,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:49:44,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:49:44,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:49:44,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:49:44,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:49:44,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:49:44,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:49:44,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:49:44,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:49:44,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:49:44,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:49:44,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:49:44,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:49:44,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:49:44,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:49:44,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:49:44,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:49:44,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:49:44,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:49:44,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:49:44,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:49:44,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:49:44,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:49:44,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:49:44,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:49:44,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:49:44,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:49:44,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:49:44,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:49:44,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:49:44,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:49:44,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:49:44,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:49:44,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:49:44,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:49:44,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:49:44,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:49:44,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:49:44,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:49:44,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:49:44,105 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:49:44,105 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:49:44,105 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:49:44,106 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:49:44,106 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:49:44,106 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:49:44,106 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:49:44,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:49:44,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:49:44,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:49:44,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:49:44,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:49:44,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:49:44,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:49:44,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:49:44,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:49:44,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:49:44,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:49:44,109 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:49:44,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:49:44,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:49:44,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:49:44,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:49:44,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:49:44,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:49:44,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:49:44,112 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:49:44,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d [2021-12-16 09:49:44,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:49:44,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:49:44,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:49:44,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:49:44,334 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:49:44,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/bhmr2007.i [2021-12-16 09:49:44,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e7a498c/6d34ed19157e416e998dd8cbbb459831/FLAG5a5a4047a [2021-12-16 09:49:44,726 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:49:44,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i [2021-12-16 09:49:44,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e7a498c/6d34ed19157e416e998dd8cbbb459831/FLAG5a5a4047a [2021-12-16 09:49:45,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e7a498c/6d34ed19157e416e998dd8cbbb459831 [2021-12-16 09:49:45,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:49:45,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:49:45,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:49:45,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:49:45,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:49:45,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f98440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45, skipping insertion in model container [2021-12-16 09:49:45,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:49:45,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:49:45,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2021-12-16 09:49:45,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:49:45,330 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:49:45,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2021-12-16 09:49:45,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:49:45,355 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:49:45,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45 WrapperNode [2021-12-16 09:49:45,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:49:45,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:49:45,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:49:45,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:49:45,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,381 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2021-12-16 09:49:45,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:49:45,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:49:45,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:49:45,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:49:45,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:49:45,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:49:45,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:49:45,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:49:45,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (1/1) ... [2021-12-16 09:49:45,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:45,436 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) [2021-12-16 09:49:45,448 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 [2021-12-16 09:49:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:49:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:49:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:49:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:49:45,514 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:49:45,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:49:45,622 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:49:45,625 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:49:45,627 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:49:45,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:45 BoogieIcfgContainer [2021-12-16 09:49:45,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:49:45,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:49:45,631 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:49:45,633 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:49:45,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:45,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:49:45" (1/3) ... [2021-12-16 09:49:45,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@758b7fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:49:45, skipping insertion in model container [2021-12-16 09:49:45,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:45,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:45" (2/3) ... [2021-12-16 09:49:45,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@758b7fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:49:45, skipping insertion in model container [2021-12-16 09:49:45,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:45,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:45" (3/3) ... [2021-12-16 09:49:45,638 INFO L388 chiAutomizerObserver]: Analyzing ICFG bhmr2007.i [2021-12-16 09:49:45,701 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:49:45,709 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:49:45,709 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:49:45,709 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:49:45,709 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:49:45,709 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:49:45,710 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:49:45,710 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:49:45,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-12-16 09:49:45,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-16 09:49:45,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:49:45,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:49:45,760 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:49:45,760 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 09:49:45,760 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:49:45,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-12-16 09:49:45,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-16 09:49:45,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:49:45,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:49:45,763 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:49:45,763 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 09:49:45,768 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~n~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~n~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;main_~a~0#1 := 0;main_~b~0#1 := 0;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L27true assume !!(main_~n~0#1 >= 0 && main_~n~0#1 <= 1000000); 7#L28-2true [2021-12-16 09:49:45,768 INFO L793 eck$LassoCheckResult]: Loop: 7#L28-2true assume !!(main_~i~0#1 < main_~n~0#1); 6#L29true assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~a~0#1 := 1 + main_~a~0#1;main_~b~0#1 := 2 + main_~b~0#1; 15#L29-2true main_~i~0#1 := 1 + main_~i~0#1; 7#L28-2true [2021-12-16 09:49:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:45,776 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-16 09:49:45,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:45,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529736069] [2021-12-16 09:49:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:45,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,879 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:45,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash 45779, now seen corresponding path program 1 times [2021-12-16 09:49:45,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:45,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028095896] [2021-12-16 09:49:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:45,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,897 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:45,918 INFO L85 PathProgramCache]: Analyzing trace with hash 889575248, now seen corresponding path program 1 times [2021-12-16 09:49:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:45,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083679459] [2021-12-16 09:49:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:45,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,936 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:45,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:46,030 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:49:46,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:49:46,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:49:46,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:49:46,031 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 09:49:46,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:49:46,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:49:46,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: bhmr2007.i_Iteration1_Loop [2021-12-16 09:49:46,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:49:46,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:49:46,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,092 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:49:46,092 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 09:49:46,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,099 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) [2021-12-16 09:49:46,100 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 [2021-12-16 09:49:46,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:49:46,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:46,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-16 09:49:46,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,143 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) [2021-12-16 09:49:46,144 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 [2021-12-16 09:49:46,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 09:49:46,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:46,171 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 09:49:46,171 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=0} Honda state: {ULTIMATE.start_main_~b~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~b~0#1=5}, {ULTIMATE.start_main_~b~0#1=2}, {ULTIMATE.start_main_~b~0#1=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] [2021-12-16 09:49:46,187 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 [2021-12-16 09:49:46,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,189 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) [2021-12-16 09:49:46,190 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 [2021-12-16 09:49:46,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:49:46,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:46,233 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 [2021-12-16 09:49:46,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,235 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) [2021-12-16 09:49:46,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 09:49:46,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:46,263 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 [2021-12-16 09:49:46,377 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 09:49:46,390 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 [2021-12-16 09:49:46,390 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:49:46,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:49:46,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:49:46,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:49:46,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:49:46,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:49:46,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:49:46,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: bhmr2007.i_Iteration1_Loop [2021-12-16 09:49:46,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:49:46,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:49:46,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:46,460 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:49:46,463 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:49:46,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,466 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) [2021-12-16 09:49:46,468 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 [2021-12-16 09:49:46,469 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 [2021-12-16 09:49:46,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:49:46,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:49:46,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:49:46,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:49:46,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:49:46,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:49:46,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:49:46,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:49:46,515 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 [2021-12-16 09:49:46,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,516 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) [2021-12-16 09:49:46,517 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 [2021-12-16 09:49:46,519 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 [2021-12-16 09:49:46,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:49:46,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:49:46,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:49:46,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:49:46,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:49:46,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:49:46,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:49:46,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:49:46,538 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 09:49:46,538 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-16 09:49:46,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:46,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:46,540 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) [2021-12-16 09:49:46,541 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 [2021-12-16 09:49:46,542 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:49:46,542 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 09:49:46,543 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:49:46,543 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-16 09:49:46,559 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 [2021-12-16 09:49:46,568 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 09:49:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:49:46,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:49:46,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:49:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:49:46,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:49:46,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:49:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:49:46,646 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 [2021-12-16 09:49:46,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:49:46,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 41 transitions. Complement of second has 7 states. [2021-12-16 09:49:46,693 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 [2021-12-16 09:49:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:49:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-12-16 09:49:46,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-16 09:49:46,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:46,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-16 09:49:46,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:46,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-16 09:49:46,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:46,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2021-12-16 09:49:46,701 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:49:46,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-12-16 09:49:46,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:49:46,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:49:46,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:49:46,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:49:46,711 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:46,711 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:46,711 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:46,711 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:49:46,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:49:46,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:49:46,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:49:46,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:49:46 BoogieIcfgContainer [2021-12-16 09:49:46,732 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:49:46,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:49:46,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:49:46,733 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:49:46,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:45" (3/4) ... [2021-12-16 09:49:46,735 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:49:46,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:49:46,735 INFO L158 Benchmark]: Toolchain (without parser) took 1579.62ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 65.6MB in the beginning and 46.3MB in the end (delta: 19.3MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2021-12-16 09:49:46,742 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:49:46,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.45ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 65.3MB in the beginning and 105.6MB in the end (delta: -40.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:49:46,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.46ms. Allocated memory is still 127.9MB. Free memory was 105.6MB in the beginning and 104.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:49:46,743 INFO L158 Benchmark]: Boogie Preprocessor took 22.57ms. Allocated memory is still 127.9MB. Free memory was 104.2MB in the beginning and 102.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:49:46,744 INFO L158 Benchmark]: RCFGBuilder took 223.27ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 93.7MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:49:46,744 INFO L158 Benchmark]: BuchiAutomizer took 1101.10ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 46.9MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-12-16 09:49:46,744 INFO L158 Benchmark]: Witness Printer took 2.47ms. Allocated memory is still 127.9MB. Free memory was 46.9MB in the beginning and 46.3MB in the end (delta: 594.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:49:46,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.45ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 65.3MB in the beginning and 105.6MB in the end (delta: -40.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.46ms. Allocated memory is still 127.9MB. Free memory was 105.6MB in the beginning and 104.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.57ms. Allocated memory is still 127.9MB. Free memory was 104.2MB in the beginning and 102.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 223.27ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 93.7MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1101.10ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 46.9MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 2.47ms. Allocated memory is still 127.9MB. Free memory was 46.9MB in the beginning and 46.3MB in the end (delta: 594.6kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 09:49:46,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-16 09:49:46,981 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