./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test26-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/ldv-regression/test26-2.c -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 8f6e10ab52ab9f08c67c483ecb655de1c57a1f14 ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:16:11,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:16:11,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:16:11,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:16:11,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:16:11,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:16:11,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:16:11,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:16:11,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:16:11,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:16:11,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:16:11,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:16:11,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:16:11,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:16:11,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:16:11,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:16:11,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:16:11,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:16:11,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:16:11,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:16:11,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:16:11,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:16:11,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:16:11,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:16:11,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:16:11,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:16:11,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:16:11,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:16:11,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:16:11,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:16:11,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:16:11,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:16:11,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:16:11,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:16:11,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:16:11,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:16:11,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:16:11,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:16:11,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:16:11,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:16:11,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:16:11,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:16:11,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:16:11,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:16:11,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:16:11,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:16:11,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:16:11,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:16:11,261 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:16:11,261 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:16:11,261 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:16:11,261 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:16:11,262 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:16:11,262 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:16:11,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:16:11,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:16:11,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:16:11,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:16:11,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:16:11,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:16:11,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:16:11,273 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:16:11,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6e10ab52ab9f08c67c483ecb655de1c57a1f14 [2021-08-27 15:16:11,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:16:11,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:16:11,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:16:11,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:16:11,573 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:16:11,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test26-2.c [2021-08-27 15:16:11,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b29acbe1/0f8e679ea0f940a097a66e879ae899b1/FLAGdfb06c54e [2021-08-27 15:16:11,973 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:16:11,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c [2021-08-27 15:16:11,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b29acbe1/0f8e679ea0f940a097a66e879ae899b1/FLAGdfb06c54e [2021-08-27 15:16:11,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b29acbe1/0f8e679ea0f940a097a66e879ae899b1 [2021-08-27 15:16:11,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:16:11,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:16:11,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:16:11,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:16:11,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:16:11,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:16:11" (1/1) ... [2021-08-27 15:16:11,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f754562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:11, skipping insertion in model container [2021-08-27 15:16:11,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:16:11" (1/1) ... [2021-08-27 15:16:12,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:16:12,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:16:12,128 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c[493,506] [2021-08-27 15:16:12,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:16:12,143 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:16:12,153 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-2.c[493,506] [2021-08-27 15:16:12,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:16:12,173 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:16:12,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12 WrapperNode [2021-08-27 15:16:12,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:16:12,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:16:12,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:16:12,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:16:12,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:16:12,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:16:12,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:16:12,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:16:12,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:16:12,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:16:12,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:16:12,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:16:12,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (1/1) ... [2021-08-27 15:16:12,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:12,287 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) [2021-08-27 15:16:12,332 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 [2021-08-27 15:16:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 15:16:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:16:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:16:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 15:16:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:16:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:16:12,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:16:12,544 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-27 15:16:12,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:16:12 BoogieIcfgContainer [2021-08-27 15:16:12,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:16:12,556 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:16:12,556 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:16:12,558 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:16:12,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:12,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:16:11" (1/3) ... [2021-08-27 15:16:12,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e362cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:16:12, skipping insertion in model container [2021-08-27 15:16:12,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:12,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:12" (2/3) ... [2021-08-27 15:16:12,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26e362cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:16:12, skipping insertion in model container [2021-08-27 15:16:12,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:12,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:16:12" (3/3) ... [2021-08-27 15:16:12,561 INFO L389 chiAutomizerObserver]: Analyzing ICFG test26-2.c [2021-08-27 15:16:12,619 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:16:12,619 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:16:12,620 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:16:12,620 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:16:12,620 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:16:12,620 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:16:12,620 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:16:12,620 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:16:12,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:12,645 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:16:12,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:16:12,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:16:12 BoogieIcfgContainer [2021-08-27 15:16:12,659 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:16:12,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:16:12,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:16:12,659 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:16:12,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:16:12" (3/4) ... [2021-08-27 15:16:12,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:16:12,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:16:12,663 INFO L168 Benchmark]: Toolchain (without parser) took 672.62 ms. Allocated memory is still 67.1 MB. Free memory was 50.7 MB in the beginning and 31.9 MB in the end (delta: 18.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:16:12,664 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 61.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:16:12,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.00 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 52.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:16:12,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.61 ms. Allocated memory is still 67.1 MB. Free memory was 52.1 MB in the beginning and 50.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:16:12,665 INFO L168 Benchmark]: Boogie Preprocessor took 27.81 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 49.7 MB in the end (delta: 809.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:16:12,666 INFO L168 Benchmark]: RCFGBuilder took 319.53 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 37.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:16:12,666 INFO L168 Benchmark]: BuchiAutomizer took 102.72 ms. Allocated memory is still 67.1 MB. Free memory was 37.7 MB in the beginning and 32.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:16:12,667 INFO L168 Benchmark]: Witness Printer took 2.65 ms. Allocated memory is still 67.1 MB. Free memory was 32.2 MB in the beginning and 31.9 MB in the end (delta: 248.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:16:12,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 61.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 184.00 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 52.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.61 ms. Allocated memory is still 67.1 MB. Free memory was 52.1 MB in the beginning and 50.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.81 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 49.7 MB in the end (delta: 809.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 319.53 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 37.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 102.72 ms. Allocated memory is still 67.1 MB. Free memory was 37.7 MB in the beginning and 32.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 2.65 ms. Allocated memory is still 67.1 MB. Free memory was 32.2 MB in the beginning and 31.9 MB in the end (delta: 248.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: No data available 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 - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:16:12,707 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...