./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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/Mysore-3.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 6edfc33d3e5e116b8b5f39fddb65c59ef052d6dfaffe394b38d04501128bfe34 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:46:30,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:46:30,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:46:30,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:46:30,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:46:30,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:46:30,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:46:30,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:46:30,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:46:30,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:46:30,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:46:30,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:46:30,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:46:30,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:46:30,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:46:30,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:46:30,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:46:30,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:46:30,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:46:30,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:46:30,529 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:46:30,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:46:30,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:46:30,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:46:30,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:46:30,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:46:30,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:46:30,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:46:30,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:46:30,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:46:30,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:46:30,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:46:30,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:46:30,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:46:30,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:46:30,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:46:30,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:46:30,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:46:30,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:46:30,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:46:30,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:46:30,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:46:30,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:46:30,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:46:30,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:46:30,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:46:30,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:46:30,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:46:30,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:46:30,574 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:46:30,574 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:46:30,575 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:46:30,575 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:46:30,576 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:46:30,576 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:46:30,576 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:46:30,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:46:30,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:46:30,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:46:30,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:46:30,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:46:30,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:46:30,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:46:30,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:46:30,579 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:46:30,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:46:30,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:46:30,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:46:30,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:46:30,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:46:30,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:46:30,582 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:46:30,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6edfc33d3e5e116b8b5f39fddb65c59ef052d6dfaffe394b38d04501128bfe34 [2022-07-14 14:46:30,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:46:30,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:46:30,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:46:30,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:46:30,888 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:46:30,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-3.c [2022-07-14 14:46:30,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4857ba924/bf71e027b4ac4dd3bf89036cd8c3efa0/FLAG36baac1f8 [2022-07-14 14:46:31,339 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:46:31,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-3.c [2022-07-14 14:46:31,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4857ba924/bf71e027b4ac4dd3bf89036cd8c3efa0/FLAG36baac1f8 [2022-07-14 14:46:31,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4857ba924/bf71e027b4ac4dd3bf89036cd8c3efa0 [2022-07-14 14:46:31,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:46:31,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:46:31,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:46:31,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:46:31,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:46:31,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9ab87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31, skipping insertion in model container [2022-07-14 14:46:31,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:46:31,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:46:31,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:46:31,933 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:46:31,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:46:31,957 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:46:31,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31 WrapperNode [2022-07-14 14:46:31,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:46:31,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:46:31,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:46:31,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:46:31,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,982 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-07-14 14:46:31,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:46:31,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:46:31,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:46:31,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:46:31,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:31,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:32,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:46:32,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:46:32,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:46:32,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:46:32,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (1/1) ... [2022-07-14 14:46:32,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:32,040 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) [2022-07-14 14:46:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:46:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:46:32,075 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 [2022-07-14 14:46:32,129 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:46:32,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:46:32,218 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:46:32,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:46:32,225 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:46:32,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:32 BoogieIcfgContainer [2022-07-14 14:46:32,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:46:32,228 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:46:32,228 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:46:32,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:46:32,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:32,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:46:31" (1/3) ... [2022-07-14 14:46:32,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@733e3532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:46:32, skipping insertion in model container [2022-07-14 14:46:32,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:32,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:46:31" (2/3) ... [2022-07-14 14:46:32,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@733e3532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:46:32, skipping insertion in model container [2022-07-14 14:46:32,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:46:32,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:32" (3/3) ... [2022-07-14 14:46:32,236 INFO L354 chiAutomizerObserver]: Analyzing ICFG Mysore-3.c [2022-07-14 14:46:32,293 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:46:32,293 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:46:32,293 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:46:32,293 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:46:32,294 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:46:32,294 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:46:32,294 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:46:32,294 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:46:32,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-07-14 14:46:32,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-14 14:46:32,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:46:32,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:46:32,321 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-14 14:46:32,321 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-14 14:46:32,322 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:46:32,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-07-14 14:46:32,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-14 14:46:32,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:46:32,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:46:32,325 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-14 14:46:32,325 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-14 14:46:32,331 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L18true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 9#L19true assume !!(-65535 <= main_~c~0#1 && main_~c~0#1 <= 65535); 10#L20true assume main_~c~0#1 < 0; 5#L21-2true [2022-07-14 14:46:32,331 INFO L754 eck$LassoCheckResult]: Loop: 5#L21-2true assume !!(main_~x~0#1 + main_~c~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~c~0#1;main_~c~0#1 := main_~c~0#1 - 1; 5#L21-2true [2022-07-14 14:46:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:32,336 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2022-07-14 14:46:32,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:32,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479774609] [2022-07-14 14:46:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,416 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:32,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:32,451 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2022-07-14 14:46:32,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:32,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979591924] [2022-07-14 14:46:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:32,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:32,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:46:32,488 INFO L85 PathProgramCache]: Analyzing trace with hash 889571281, now seen corresponding path program 1 times [2022-07-14 14:46:32,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:46:32,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162040334] [2022-07-14 14:46:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:46:32,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:46:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,505 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:46:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:46:32,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:46:32,609 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:46:32,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:46:32,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:46:32,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:46:32,611 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:46:32,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:46:32,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:46:32,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Loop [2022-07-14 14:46:32,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:46:32,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:46:32,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:32,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:32,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:32,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:46:32,755 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:46:32,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:32,768 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) [2022-07-14 14:46:32,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:32,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:32,783 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 [2022-07-14 14:46:32,792 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:32,792 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: [] [2022-07-14 14:46:32,815 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 [2022-07-14 14:46:32,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:32,817 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) [2022-07-14 14:46:32,819 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 [2022-07-14 14:46:32,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:32,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:32,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:32,842 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: [] [2022-07-14 14:46:32,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:46:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:32,867 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) [2022-07-14 14:46:32,868 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 [2022-07-14 14:46:32,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:32,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:32,921 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 [2022-07-14 14:46:32,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:32,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:32,923 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) [2022-07-14 14:46:32,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:46:32,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:32,955 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 [2022-07-14 14:46:33,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:33,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=7, ULTIMATE.start_main_~c~0#1=-7} Honda state: {ULTIMATE.start_main_~x~0#1=7, ULTIMATE.start_main_~c~0#1=-7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~c~0#1=-1}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 0] [2022-07-14 14:46:33,045 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 [2022-07-14 14:46:33,111 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:46:33,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:46:33,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:46:33,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:46:33,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:46:33,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:33,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:46:33,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:46:33,112 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Lasso [2022-07-14 14:46:33,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:46:33,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:46:33,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:46:33,221 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:46:33,221 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:46:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:33,223 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) [2022-07-14 14:46:33,224 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 [2022-07-14 14:46:33,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:33,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:33,271 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 [2022-07-14 14:46:33,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:33,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:33,273 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2022-07-14 14:46:33,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-14 14:46:33,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:46:33,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,513 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0, ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=-49153, ULTIMATE.start_main_~x~0#1=49153} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=-1, ULTIMATE.start_main_~x~0#1=49152}, {ULTIMATE.start_main_~c~0#1=0, ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~c~0#1=0, ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 1, 65538] Nus: [1, 0] [2022-07-14 14:46:41,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-14 14:46:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:41,536 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2022-07-14 14:46:41,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-14 14:46:41,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:41,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:46:41,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-14 14:46:41,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:41,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:41,577 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2022-07-14 14:46:41,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-14 14:46:41,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:41,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,587 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: [] [2022-07-14 14:46:41,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:46:41,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:41,605 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2022-07-14 14:46:41,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-14 14:46:41,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:41,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,614 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:46:41,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:46:41,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:41,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:41,634 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2022-07-14 14:46:41,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-14 14:46:41,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:41,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:46:41,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:46:41,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:46:41,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:46:41,669 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2022-07-14 14:46:41,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-14 14:46:41,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:46:41,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:46:41,679 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:46:41,679 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:46:41,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-14 14:46:41,704 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,706 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,707 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 02:46:41 BoogieIcfgContainer [2022-07-14 14:46:41,715 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 14:46:41,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:46:41,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:46:41,716 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:46:41,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:46:32" (3/4) ... [2022-07-14 14:46:41,718 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 14:46:41,743 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:46:41,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:46:41,745 INFO L158 Benchmark]: Toolchain (without parser) took 9995.93ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 43.6MB in the beginning and 56.6MB in the end (delta: -13.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,745 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:46:41,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.70ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 74.9MB in the end (delta: -31.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.29ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,747 INFO L158 Benchmark]: Boogie Preprocessor took 17.51ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 72.8MB in the end (delta: 905.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:46:41,747 INFO L158 Benchmark]: RCFGBuilder took 219.93ms. Allocated memory is still 102.8MB. Free memory was 72.5MB in the beginning and 64.5MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,748 INFO L158 Benchmark]: BuchiAutomizer took 9486.90ms. Allocated memory is still 102.8MB. Free memory was 64.5MB in the beginning and 58.2MB in the end (delta: 6.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,748 INFO L158 Benchmark]: Witness Printer took 28.22ms. Allocated memory is still 102.8MB. Free memory was 58.2MB in the beginning and 56.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:46:41,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.70ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 74.9MB in the end (delta: -31.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.29ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.51ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 72.8MB in the end (delta: 905.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 219.93ms. Allocated memory is still 102.8MB. Free memory was 72.5MB in the beginning and 64.5MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 9486.90ms. Allocated memory is still 102.8MB. Free memory was 64.5MB in the beginning and 58.2MB in the end (delta: 6.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 28.22ms. Allocated memory is still 102.8MB. Free memory was 58.2MB in the beginning and 56.6MB in the end (delta: 1.5MB). 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 9.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 9.3s. 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: inital27 mio100 ax148 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf94 smp100 dnf100 smp100 tf103 neg100 sie102 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 21]: Nontermination argument in form of an infinite program execution. [2022-07-14 14:46:41,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2022-07-14 14:46:41,770 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2022-07-14 14:46:41,770 WARN L418 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@451a40ce=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b31040=0, c=0} State at position 1 is {x=49153, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@451a40ce=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b31040=0, c=-49153} For i>1, the state at position i is {x=49153 + sum_{k=0}^i 49152 + 1 + 1*k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@451a40ce=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b31040=0 + sum_{k=0}^i 0, c=-49153 + sum_{k=0}^i -1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 1, 65538] Mus: [1, 0] - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] int c; [L15] x = __VERIFIER_nondet_int() [L16] c = __VERIFIER_nondet_int() [L18] COND FALSE !(!(-65535<=x && x<=65535)) [L19] COND FALSE !(!(-65535<=c && c<=65535)) [L20] COND TRUE c < 0 Loop: [L21] COND TRUE x + c >= 0 [L22] x = x - c [L23] c = c - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 14:46:41,807 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)