./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/alias_of_return.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/alias_of_return.i -s /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer --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 06301ba1d9ec863b6cc8897b223f4a327ace47ed ...................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:14:51,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:14:51,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:14:52,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:14:52,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:14:52,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:14:52,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:14:52,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:14:52,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:14:52,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:14:52,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:14:52,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:14:52,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:14:52,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:14:52,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:14:52,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:14:52,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:14:52,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:14:52,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:14:52,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:14:52,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:14:52,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:14:52,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:14:52,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:14:52,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:14:52,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:14:52,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:14:52,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:14:52,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:14:52,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:14:52,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:14:52,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:14:52,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:14:52,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:14:52,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:14:52,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:14:52,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:14:52,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:14:52,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:14:52,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:14:52,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:14:52,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:14:52,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:14:52,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:14:52,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:14:52,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:14:52,167 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:14:52,167 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:14:52,168 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:14:52,168 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:14:52,168 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:14:52,168 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:14:52,169 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:14:52,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:14:52,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:14:52,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:14:52,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:14:52,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:14:52,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:14:52,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:14:52,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:14:52,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:14:52,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:14:52,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:14:52,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:14:52,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:14:52,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:14:52,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:14:52,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:14:52,173 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:14:52,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:14:52,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:14:52,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:14:52,174 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:14:52,175 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:14:52,176 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:/tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06301ba1d9ec863b6cc8897b223f4a327ace47ed [2020-11-30 00:14:52,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:14:52,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:14:52,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:14:52,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:14:52,550 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:14:52,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/alias_of_return.i [2020-11-30 00:14:52,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/data/0f94e9e17/34848cfada084d269dd64805df406d7a/FLAG24f8db978 [2020-11-30 00:14:53,077 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:14:53,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/sv-benchmarks/c/ldv-regression/alias_of_return.i [2020-11-30 00:14:53,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/data/0f94e9e17/34848cfada084d269dd64805df406d7a/FLAG24f8db978 [2020-11-30 00:14:53,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/data/0f94e9e17/34848cfada084d269dd64805df406d7a [2020-11-30 00:14:53,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:14:53,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:14:53,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:53,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:14:53,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:14:53,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4af709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53, skipping insertion in model container [2020-11-30 00:14:53,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:14:53,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:14:53,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:53,719 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:14:53,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:53,760 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:14:53,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53 WrapperNode [2020-11-30 00:14:53,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:53,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:53,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:14:53,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:14:53,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:53,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:14:53,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:14:53,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:14:53,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... [2020-11-30 00:14:53,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:14:53,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:14:53,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:14:53,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:14:53,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_141d546c-ba5a-4a56-afa5-f56464705476/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:14:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:14:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:14:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:14:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:14:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:14:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:14:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:14:54,176 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:14:54,185 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 00:14:54,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:54 BoogieIcfgContainer [2020-11-30 00:14:54,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:14:54,196 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:14:54,197 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:14:54,201 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:14:54,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:54,209 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:14:53" (1/3) ... [2020-11-30 00:14:54,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31640d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:14:54, skipping insertion in model container [2020-11-30 00:14:54,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:54,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:53" (2/3) ... [2020-11-30 00:14:54,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31640d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:14:54, skipping insertion in model container [2020-11-30 00:14:54,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:14:54,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:54" (3/3) ... [2020-11-30 00:14:54,215 INFO L373 chiAutomizerObserver]: Analyzing ICFG alias_of_return.i [2020-11-30 00:14:54,314 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:14:54,314 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:14:54,314 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:14:54,315 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:14:54,315 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:14:54,315 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:14:54,315 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:14:54,315 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:14:54,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-30 00:14:54,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:14:54,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:14:54,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:14:54 BoogieIcfgContainer [2020-11-30 00:14:54,364 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:14:54,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:14:54,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:14:54,366 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:14:54,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:54" (3/4) ... [2020-11-30 00:14:54,369 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:14:54,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:14:54,372 INFO L168 Benchmark]: Toolchain (without parser) took 903.19 ms. Allocated memory is still 134.2 MB. Free memory was 107.9 MB in the beginning and 92.7 MB in the end (delta: 15.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:54,373 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 92.3 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:14:54,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 134.2 MB. Free memory was 107.9 MB in the beginning and 112.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:54,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.24 ms. Allocated memory is still 134.2 MB. Free memory was 112.0 MB in the beginning and 110.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:14:54,377 INFO L168 Benchmark]: Boogie Preprocessor took 47.03 ms. Allocated memory is still 134.2 MB. Free memory was 110.8 MB in the beginning and 109.9 MB in the end (delta: 903.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:54,378 INFO L168 Benchmark]: RCFGBuilder took 335.98 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 98.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:54,380 INFO L168 Benchmark]: BuchiAutomizer took 168.10 ms. Allocated memory is still 134.2 MB. Free memory was 98.5 MB in the beginning and 93.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:54,381 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 134.2 MB. Free memory was 93.1 MB in the beginning and 92.7 MB in the end (delta: 450.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:14:54,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 92.3 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 134.2 MB. Free memory was 107.9 MB in the beginning and 112.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.24 ms. Allocated memory is still 134.2 MB. Free memory was 112.0 MB in the beginning and 110.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.03 ms. Allocated memory is still 134.2 MB. Free memory was 110.8 MB in the beginning and 109.9 MB in the end (delta: 903.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 335.98 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 98.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168.10 ms. Allocated memory is still 134.2 MB. Free memory was 98.5 MB in the beginning and 93.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.54 ms. Allocated memory is still 134.2 MB. Free memory was 93.1 MB in the beginning and 92.7 MB in the end (delta: 450.7 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! Received shutdown request...