./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/n.c40.c --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/loops/n.c40.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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 18:33:44,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 18:33:44,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 18:33:44,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 18:33:44,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 18:33:44,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 18:33:44,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 18:33:44,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 18:33:44,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 18:33:44,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 18:33:44,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 18:33:44,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 18:33:44,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 18:33:44,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 18:33:44,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 18:33:44,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 18:33:44,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 18:33:44,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 18:33:44,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 18:33:44,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 18:33:44,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 18:33:44,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 18:33:44,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 18:33:44,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 18:33:44,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 18:33:44,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 18:33:44,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 18:33:44,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 18:33:44,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 18:33:44,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 18:33:44,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 18:33:44,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 18:33:44,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 18:33:44,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 18:33:44,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 18:33:44,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 18:33:44,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 18:33:44,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 18:33:44,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 18:33:44,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 18:33:44,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 18:33:44,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 18:33:44,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 18:33:44,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 18:33:44,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 18:33:44,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 18:33:44,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 18:33:44,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 18:33:44,224 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 18:33:44,224 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 18:33:44,225 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 18:33:44,225 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 18:33:44,225 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 18:33:44,225 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 18:33:44,225 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 18:33:44,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 18:33:44,226 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 18:33:44,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 18:33:44,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 18:33:44,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 18:33:44,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 18:33:44,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 18:33:44,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 18:33:44,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 18:33:44,228 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 18:33:44,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2021-12-19 18:33:44,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 18:33:44,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 18:33:44,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 18:33:44,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 18:33:44,565 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 18:33:44,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/n.c40.c [2021-12-19 18:33:44,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fae32b2f/4972fcd22f1144e8a3b0831806440cd7/FLAG144674dda [2021-12-19 18:33:45,054 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 18:33:45,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c [2021-12-19 18:33:45,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fae32b2f/4972fcd22f1144e8a3b0831806440cd7/FLAG144674dda [2021-12-19 18:33:45,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fae32b2f/4972fcd22f1144e8a3b0831806440cd7 [2021-12-19 18:33:45,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 18:33:45,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 18:33:45,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 18:33:45,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 18:33:45,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 18:33:45,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9620a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45, skipping insertion in model container [2021-12-19 18:33:45,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 18:33:45,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 18:33:45,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-12-19 18:33:45,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:33:45,230 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 18:33:45,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-12-19 18:33:45,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:33:45,257 INFO L208 MainTranslator]: Completed translation [2021-12-19 18:33:45,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45 WrapperNode [2021-12-19 18:33:45,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 18:33:45,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 18:33:45,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 18:33:45,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 18:33:45,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,282 INFO L137 Inliner]: procedures = 12, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2021-12-19 18:33:45,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 18:33:45,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 18:33:45,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 18:33:45,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 18:33:45,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 18:33:45,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 18:33:45,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 18:33:45,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 18:33:45,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (1/1) ... [2021-12-19 18:33:45,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:33:45,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:33:45,348 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) [2021-12-19 18:33:45,367 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 [2021-12-19 18:33:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 18:33:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 18:33:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 18:33:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 18:33:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 18:33:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 18:33:45,444 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 18:33:45,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 18:33:45,545 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 18:33:45,549 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 18:33:45,549 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 18:33:45,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:33:45 BoogieIcfgContainer [2021-12-19 18:33:45,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 18:33:45,555 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 18:33:45,555 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 18:33:45,557 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 18:33:45,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:33:45,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 06:33:45" (1/3) ... [2021-12-19 18:33:45,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f81ecbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:33:45, skipping insertion in model container [2021-12-19 18:33:45,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:33:45,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:33:45" (2/3) ... [2021-12-19 18:33:45,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f81ecbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:33:45, skipping insertion in model container [2021-12-19 18:33:45,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:33:45,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:33:45" (3/3) ... [2021-12-19 18:33:45,571 INFO L388 chiAutomizerObserver]: Analyzing ICFG n.c40.c [2021-12-19 18:33:45,613 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 18:33:45,613 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 18:33:45,614 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 18:33:45,614 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 18:33:45,614 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 18:33:45,614 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 18:33:45,614 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 18:33:45,614 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 18:33:45,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:33:45,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:33:45,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:33:45,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:33:45,660 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:33:45,660 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:33:45,660 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 18:33:45,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:33:45,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:33:45,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:33:45,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:33:45,661 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:33:45,661 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:33:45,665 INFO L791 eck$LassoCheckResult]: Stem: 5#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(8, 2);call #Ultimate.allocInit(12, 3);~#x~0.base, ~#x~0.offset := 4, 0;call #Ultimate.allocInit(100, 4);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#x~0.base);~#y~0.base, ~#y~0.offset := 5, 0;call #Ultimate.allocInit(100, 5);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem5#1, main_#t~mem8#1;~k~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~i~0 := 0; 13#L14-3true [2021-12-19 18:33:45,666 INFO L793 eck$LassoCheckResult]: Loop: 13#L14-3true call main_#t~mem5#1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1); 12#L14-1true assume !!(0 != main_#t~mem5#1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int(main_#t~mem6#1, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem6#1;main_#t~post7#1 := ~i~0;~i~0 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 13#L14-3true [2021-12-19 18:33:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:33:45,675 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-19 18:33:45,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:33:45,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866035552] [2021-12-19 18:33:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:33:45,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:33:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:33:45,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:33:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:33:45,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:33:45,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:33:45,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2021-12-19 18:33:45,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:33:45,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521079276] [2021-12-19 18:33:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:33:45,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:33:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:33:45,817 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:33:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:33:45,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:33:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:33:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-19 18:33:45,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:33:45,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874389535] [2021-12-19 18:33:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:33:45,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:33:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:33:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:33:45,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 18:33:45,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874389535] [2021-12-19 18:33:45,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874389535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 18:33:45,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 18:33:45,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 18:33:45,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357841097] [2021-12-19 18:33:45,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 18:33:46,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 18:33:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 18:33:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 18:33:46,091 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-19 18:33:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 18:33:46,140 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-12-19 18:33:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 18:33:46,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2021-12-19 18:33:46,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:33:46,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-12-19 18:33:46,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 18:33:46,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 18:33:46,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 18:33:46,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 18:33:46,151 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:33:46,151 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:33:46,152 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:33:46,152 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 18:33:46,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 18:33:46,152 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:33:46,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 18:33:46,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 06:33:46 BoogieIcfgContainer [2021-12-19 18:33:46,158 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 18:33:46,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 18:33:46,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 18:33:46,159 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 18:33:46,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:33:45" (3/4) ... [2021-12-19 18:33:46,161 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 18:33:46,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 18:33:46,162 INFO L158 Benchmark]: Toolchain (without parser) took 1084.20ms. Allocated memory is still 157.3MB. Free memory was 123.8MB in the beginning and 87.7MB in the end (delta: 36.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,162 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:33:46,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.38ms. Allocated memory is still 157.3MB. Free memory was 123.8MB in the beginning and 130.4MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.66ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 129.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,164 INFO L158 Benchmark]: Boogie Preprocessor took 31.74ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 128.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:33:46,164 INFO L158 Benchmark]: RCFGBuilder took 239.23ms. Allocated memory is still 157.3MB. Free memory was 128.0MB in the beginning and 118.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,164 INFO L158 Benchmark]: BuchiAutomizer took 602.86ms. Allocated memory is still 157.3MB. Free memory was 117.9MB in the beginning and 88.1MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,165 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 87.7MB in the end (delta: 433.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 18:33:46,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.38ms. Allocated memory is still 157.3MB. Free memory was 123.8MB in the beginning and 130.4MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.66ms. Allocated memory is still 157.3MB. Free memory was 130.4MB in the beginning and 129.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.74ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 128.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 239.23ms. Allocated memory is still 157.3MB. Free memory was 128.0MB in the beginning and 118.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 602.86ms. Allocated memory is still 157.3MB. Free memory was 117.9MB in the beginning and 88.1MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 87.7MB in the end (delta: 433.9kB). Peak memory consumption was 2.1MB. 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 (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 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! [2021-12-19 18:33:46,207 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