./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Madrid.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e1ff0e6 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/termination-crafted/Madrid.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:21:48,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:21:48,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:21:48,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:21:48,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:21:48,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:21:48,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:21:48,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:21:48,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:21:48,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:21:48,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:21:48,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:21:48,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:21:48,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:21:48,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:21:48,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:21:48,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:21:48,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:21:48,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:21:48,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:21:48,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:21:48,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:21:48,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:21:48,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:21:48,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:21:48,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:21:48,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:21:48,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:21:48,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:21:48,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:21:48,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:21:48,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:21:48,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:21:48,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:21:48,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:21:48,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:21:48,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:21:48,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:21:48,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:21:48,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:21:48,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:21:48,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 02:21:48,567 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:21:48,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:21:48,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:21:48,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:21:48,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:21:48,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:21:48,569 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:21:48,570 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 02:21:48,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 02:21:48,570 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 02:21:48,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 02:21:48,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:21:48,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:21:48,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 02:21:48,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:21:48,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:21:48,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:21:48,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:21:48,575 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 02:21:48,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2023-02-15 02:21:48,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:21:48,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:21:48,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:21:48,815 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:21:48,837 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:21:48,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Madrid.c [2023-02-15 02:21:49,784 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:21:49,913 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:21:49,914 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Madrid.c [2023-02-15 02:21:49,918 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bdcab9b/0b4a3b3991e547388745d9e327760e19/FLAG5862cd7d0 [2023-02-15 02:21:49,930 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bdcab9b/0b4a3b3991e547388745d9e327760e19 [2023-02-15 02:21:49,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:21:49,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:21:49,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:21:49,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:21:49,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:21:49,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:21:49" (1/1) ... [2023-02-15 02:21:49,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2dc1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:49, skipping insertion in model container [2023-02-15 02:21:49,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:21:49" (1/1) ... [2023-02-15 02:21:49,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:21:49,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:21:50,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:21:50,048 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:21:50,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:21:50,064 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:21:50,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50 WrapperNode [2023-02-15 02:21:50,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:21:50,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:21:50,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:21:50,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:21:50,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,083 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-02-15 02:21:50,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:21:50,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:21:50,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:21:50,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:21:50,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:21:50,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:21:50,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:21:50,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:21:50,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (1/1) ... [2023-02-15 02:21:50,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,121 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) [2023-02-15 02:21:50,124 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 [2023-02-15 02:21:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:21:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:21:50,199 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:21:50,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:21:50,251 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:21:50,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:21:50,257 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:21:50,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:21:50 BoogieIcfgContainer [2023-02-15 02:21:50,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:21:50,259 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 02:21:50,259 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 02:21:50,276 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 02:21:50,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:21:50,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:21:49" (1/3) ... [2023-02-15 02:21:50,277 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f0f3343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:21:50, skipping insertion in model container [2023-02-15 02:21:50,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:21:50,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:21:50" (2/3) ... [2023-02-15 02:21:50,280 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f0f3343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:21:50, skipping insertion in model container [2023-02-15 02:21:50,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:21:50,280 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:21:50" (3/3) ... [2023-02-15 02:21:50,282 INFO L332 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2023-02-15 02:21:50,321 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 02:21:50,321 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 02:21:50,321 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 02:21:50,322 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 02:21:50,322 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 02:21:50,322 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 02:21:50,322 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 02:21:50,322 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 02:21:50,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:21:50,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:21:50,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:21:50,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:21:50,346 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:21:50,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 02:21:50,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 02:21:50,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:21:50,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:21:50,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:21:50,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:21:50,349 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:21:50,349 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 02:21:50,354 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7; 6#L14-2true [2023-02-15 02:21:50,355 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~true);main_~x~0#1 := 2; 6#L14-2true [2023-02-15 02:21:50,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:21:50,362 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 02:21:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:21:50,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788549012] [2023-02-15 02:21:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:21:50,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:21:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:21:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:21:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:21:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-15 02:21:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:21:50,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055467251] [2023-02-15 02:21:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:21:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:21:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:21:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:21:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:21:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 02:21:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:21:50,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069131011] [2023-02-15 02:21:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:21:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:21:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:21:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:21:50,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:21:50,502 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:21:50,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:21:50,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:21:50,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:21:50,503 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:21:50,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:21:50,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:21:50,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2023-02-15 02:21:50,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:21:50,504 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:21:50,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:21:50,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:21:50,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:21:50,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:21:50,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:21:50,577 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:21:50,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:21:50,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:21:50,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:21:50,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-15 02:21:50,661 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:21:50,661 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:21:50,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:21:50,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:21:50,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:21:50,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:21:50,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-15 02:21:50,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:21:50,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:21:50,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-15 02:21:50,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:21:50,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-15 02:21:50,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:21:50,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:21:50,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:21:50,766 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:21:50,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-15 02:21:50,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:21:50,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-15 02:21:50,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:21:50,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:21:50,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 02:21:50,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:21:50,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:21:50,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:21:50,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-15 02:21:50,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:21:50,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:21:50,839 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:21:50,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-8}] Lambdas: [0, 8, 0] Nus: [0, 1] [2023-02-15 02:21:50,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:21:50,865 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,866 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,866 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,866 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,866 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,867 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:21:50 BoogieIcfgContainer [2023-02-15 02:21:50,875 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 02:21:50,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:21:50,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:21:50,875 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:21:50,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:21:50" (3/4) ... [2023-02-15 02:21:50,877 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-02-15 02:21:50,897 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 02:21:50,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:21:50,899 INFO L158 Benchmark]: Toolchain (without parser) took 965.03ms. Allocated memory is still 127.9MB. Free memory was 82.7MB in the beginning and 74.3MB in the end (delta: 8.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,899 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:21:50,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 129.17ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 73.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.16ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,901 INFO L158 Benchmark]: Boogie Preprocessor took 11.14ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,901 INFO L158 Benchmark]: RCFGBuilder took 162.98ms. Allocated memory is still 127.9MB. Free memory was 71.2MB in the beginning and 63.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,902 INFO L158 Benchmark]: BuchiAutomizer took 615.55ms. Allocated memory is still 127.9MB. Free memory was 63.2MB in the beginning and 75.6MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:21:50,902 INFO L158 Benchmark]: Witness Printer took 22.58ms. Allocated memory is still 127.9MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:21:50,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 129.17ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 73.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.16ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.14ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 162.98ms. Allocated memory is still 127.9MB. Free memory was 71.2MB in the beginning and 63.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 615.55ms. Allocated memory is still 127.9MB. Free memory was 63.2MB in the beginning and 75.6MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 22.58ms. Allocated memory is still 127.9MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: Lassos: inital6 mio100 ax333 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2023-02-15 02:21:50,910 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,910 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,911 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2023-02-15 02:21:50,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2023-02-15 02:21:50,913 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {x=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, \result=0} State at position 1 is {x=7, ~unnamed0~0~true=1, ~unnamed0~0~false=0, \result=0} For i>1, the state at position i is {x=7 + sum_{k=0}^i 2*0^k + 1*8^k + -8*0^k + -8*k*8^(k-1), ~unnamed0~0~true=1 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [0, 8, 0] Mus: [0, 1] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-15 02:21:50,922 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)