./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/while_infinite_loop_1.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 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:19:02,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:19:02,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:19:02,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:19:02,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:19:02,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:19:02,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:19:02,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:19:02,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:19:02,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:19:02,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:19:02,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:19:02,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:19:02,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:19:02,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:19:02,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:19:02,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:19:02,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:19:02,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:19:02,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:19:02,537 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:19:02,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:19:02,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:19:02,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:19:02,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:19:02,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:19:02,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:19:02,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:19:02,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:19:02,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:19:02,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:19:02,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:19:02,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:19:02,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:19:02,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:19:02,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:19:02,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:19:02,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:19:02,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:19:02,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:19:02,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:19:02,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:19:02,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:19:02,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:19:02,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:19:02,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:19:02,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:19:02,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:19:02,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:19:02,605 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:19:02,605 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:19:02,605 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:19:02,606 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:19:02,606 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:19:02,607 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:19:02,607 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:19:02,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:19:02,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:19:02,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:19:02,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:19:02,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:19:02,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:19:02,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:19:02,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:19:02,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:19:02,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:19:02,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:19:02,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:19:02,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:19:02,613 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:19:02,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f [2022-07-22 02:19:02,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:19:02,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:19:02,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:19:02,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:19:02,958 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:19:02,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/while_infinite_loop_1.c [2022-07-22 02:19:03,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8320c69ac/8ca9702bf7e94152b205928ba05f1701/FLAG2ab954c0d [2022-07-22 02:19:03,430 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:19:03,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/while_infinite_loop_1.c [2022-07-22 02:19:03,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8320c69ac/8ca9702bf7e94152b205928ba05f1701/FLAG2ab954c0d [2022-07-22 02:19:03,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8320c69ac/8ca9702bf7e94152b205928ba05f1701 [2022-07-22 02:19:03,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:19:03,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:19:03,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:19:03,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:19:03,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:19:03,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:19:03" (1/1) ... [2022-07-22 02:19:03,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12db1fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:03, skipping insertion in model container [2022-07-22 02:19:03,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:19:03" (1/1) ... [2022-07-22 02:19:03,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:19:03,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:19:03,993 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/while_infinite_loop_1.c[333,346] [2022-07-22 02:19:03,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:19:04,006 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:19:04,025 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/while_infinite_loop_1.c[333,346] [2022-07-22 02:19:04,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:19:04,039 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:19:04,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04 WrapperNode [2022-07-22 02:19:04,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:19:04,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:19:04,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:19:04,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:19:04,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,069 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2022-07-22 02:19:04,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:19:04,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:19:04,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:19:04,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:19:04,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:19:04,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:19:04,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:19:04,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:19:04,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (1/1) ... [2022-07-22 02:19:04,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:19:04,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:19:04,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:19:04,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:19:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:19:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:19:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:19:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:19:04,242 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:19:04,244 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:19:04,336 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:19:04,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:19:04,342 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 02:19:04,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:19:04 BoogieIcfgContainer [2022-07-22 02:19:04,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:19:04,346 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:19:04,346 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:19:04,348 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:19:04,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:19:04,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:19:03" (1/3) ... [2022-07-22 02:19:04,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@294087f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:19:04, skipping insertion in model container [2022-07-22 02:19:04,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:19:04,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:19:04" (2/3) ... [2022-07-22 02:19:04,351 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@294087f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:19:04, skipping insertion in model container [2022-07-22 02:19:04,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:19:04,351 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:19:04" (3/3) ... [2022-07-22 02:19:04,354 INFO L354 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2022-07-22 02:19:04,408 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:19:04,408 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:19:04,408 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:19:04,408 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:19:04,408 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:19:04,408 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:19:04,409 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:19:04,409 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:19:04,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:19:04,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 02:19:04,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:19:04,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:19:04,429 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:19:04,430 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:19:04,430 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:19:04,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:19:04,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 02:19:04,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:19:04,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:19:04,432 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:19:04,432 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:19:04,437 INFO L752 eck$LassoCheckResult]: Stem: 3#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(24, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0; 9#L15-2true [2022-07-22 02:19:04,437 INFO L754 eck$LassoCheckResult]: Loop: 9#L15-2true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L6true assume !(0 == __VERIFIER_assert_~cond#1); 4#L6-2true assume { :end_inline___VERIFIER_assert } true; 9#L15-2true [2022-07-22 02:19:04,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:19:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 02:19:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:19:04,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603439361] [2022-07-22 02:19:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:19:04,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:19:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:19:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:19:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:19:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash 40941, now seen corresponding path program 1 times [2022-07-22 02:19:04,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:19:04,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565828499] [2022-07-22 02:19:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:19:04,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:19:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:19:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:19:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:19:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash 28699883, now seen corresponding path program 1 times [2022-07-22 02:19:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:19:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482977615] [2022-07-22 02:19:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:19:04,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:19:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,624 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:19:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:19:04,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:19:04,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:19:04 BoogieIcfgContainer [2022-07-22 02:19:04,899 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:19:04,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:19:04,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:19:04,900 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:19:04,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:19:04" (3/4) ... [2022-07-22 02:19:04,903 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:19:04,927 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:19:04,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:19:04,928 INFO L158 Benchmark]: Toolchain (without parser) took 1069.47ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 27.9MB in the beginning and 33.0MB in the end (delta: -5.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,929 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:19:04,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.78ms. Allocated memory is still 50.3MB. Free memory was 27.7MB in the beginning and 30.1MB in the end (delta: -2.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.29ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 47.1MB in the end (delta: -17.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,930 INFO L158 Benchmark]: Boogie Preprocessor took 39.11ms. Allocated memory is still 62.9MB. Free memory was 47.1MB in the beginning and 46.1MB in the end (delta: 958.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,931 INFO L158 Benchmark]: RCFGBuilder took 234.20ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 38.0MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,931 INFO L158 Benchmark]: BuchiAutomizer took 553.76ms. Allocated memory is still 62.9MB. Free memory was 38.0MB in the beginning and 34.5MB in the end (delta: 3.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,932 INFO L158 Benchmark]: Witness Printer took 27.33ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 33.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:19:04,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.78ms. Allocated memory is still 50.3MB. Free memory was 27.7MB in the beginning and 30.1MB in the end (delta: -2.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.29ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 47.1MB in the end (delta: -17.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.11ms. Allocated memory is still 62.9MB. Free memory was 47.1MB in the beginning and 46.1MB in the end (delta: 958.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.20ms. Allocated memory is still 62.9MB. Free memory was 46.1MB in the beginning and 38.0MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 553.76ms. Allocated memory is still 62.9MB. Free memory was 38.0MB in the beginning and 34.5MB in the end (delta: 3.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 27.33ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 33.0MB in the end (delta: 1.5MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 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 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=0, NULL=0, NULL=0, \old(cond)=1, NULL=1, \result=0, cond=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x=0; Loop: [L15] COND TRUE 1 [L17] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L17] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 02:19:04,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)