./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 8d31f386 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 a7efd1a0f3e3646ffbf8e76b3eb61ab823f0d031 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:15:43,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:15:43,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:15:43,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:15:43,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:15:43,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:15:43,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:15:43,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:15:43,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:15:43,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:15:43,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:15:43,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:15:43,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:15:43,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:15:43,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:15:43,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:15:43,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:15:43,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:15:43,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:15:43,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:15:43,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:15:43,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:15:43,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:15:43,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:15:43,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:15:43,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:15:43,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:15:43,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:15:43,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:15:43,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:15:43,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:15:43,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:15:43,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:15:43,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:15:43,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:15:43,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:15:43,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:15:43,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:15:43,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:15:43,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:15:43,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:15:43,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:15:43,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:15:43,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:15:43,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:15:43,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:15:43,214 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:15:43,215 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:15:43,215 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:15:43,215 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:15:43,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:15:43,215 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:15:43,216 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:15:43,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:15:43,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:15:43,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:15:43,218 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:15:43,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:15:43,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:15:43,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:15:43,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:15:43,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:15:43,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:15:43,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:15:43,220 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:15:43,220 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7efd1a0f3e3646ffbf8e76b3eb61ab823f0d031 [2021-07-06 18:15:43,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:15:43,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:15:43,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:15:43,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:15:43,549 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:15:43,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-3.c [2021-07-06 18:15:43,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50158e864/1932100aef184c17a7736951d766c64d/FLAGe0f44c214 [2021-07-06 18:15:44,042 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:15:44,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-3.c [2021-07-06 18:15:44,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50158e864/1932100aef184c17a7736951d766c64d/FLAGe0f44c214 [2021-07-06 18:15:44,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50158e864/1932100aef184c17a7736951d766c64d [2021-07-06 18:15:44,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:15:44,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:15:44,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:44,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:15:44,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:15:44,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115dc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44, skipping insertion in model container [2021-07-06 18:15:44,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:15:44,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:15:44,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:44,633 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:15:44,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:44,654 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:15:44,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44 WrapperNode [2021-07-06 18:15:44,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:44,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:44,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:15:44,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:15:44,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:44,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:15:44,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:15:44,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:15:44,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:15:44,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:15:44,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:15:44,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:15:44,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (1/1) ... [2021-07-06 18:15:44,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:44,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:44,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:44,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 18:15:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:15:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:15:44,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:15:44,967 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 18:15:44,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:44 BoogieIcfgContainer [2021-07-06 18:15:44,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:15:44,970 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:15:44,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:15:44,972 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:15:44,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:44,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:15:44" (1/3) ... [2021-07-06 18:15:44,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a9d5019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:44, skipping insertion in model container [2021-07-06 18:15:44,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:44,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:44" (2/3) ... [2021-07-06 18:15:44,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a9d5019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:44, skipping insertion in model container [2021-07-06 18:15:44,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:44,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:44" (3/3) ... [2021-07-06 18:15:44,977 INFO L389 chiAutomizerObserver]: Analyzing ICFG Mysore-3.c [2021-07-06 18:15:45,038 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:15:45,039 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:15:45,039 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:15:45,039 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:15:45,039 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:15:45,039 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:15:45,039 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:15:45,039 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:15:45,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:45,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:45,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:45,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:45,076 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 18:15:45,076 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:45,076 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:15:45,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:45,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:45,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:45,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:45,079 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 18:15:45,079 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:45,085 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L18true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 7#L19true assume !!(-65535 <= main_~c~0 && main_~c~0 <= 65535); 11#L20true assume main_~c~0 < 0; 9#L21-2true [2021-07-06 18:15:45,086 INFO L793 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~x~0 + main_~c~0 >= 0);main_~x~0 := main_~x~0 - main_~c~0;main_~c~0 := main_~c~0 - 1; 9#L21-2true [2021-07-06 18:15:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:45,091 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2021-07-06 18:15:45,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:45,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677447528] [2021-07-06 18:15:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:45,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,157 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,162 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,175 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2021-07-06 18:15:45,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:45,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931035695] [2021-07-06 18:15:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:45,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,197 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,210 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:45,214 INFO L82 PathProgramCache]: Analyzing trace with hash 29742446, now seen corresponding path program 1 times [2021-07-06 18:15:45,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:45,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768718580] [2021-07-06 18:15:45,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:45,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,230 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:45,247 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:45,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:45,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:45,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 18:15:45,346 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:45,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:45,348 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:45,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:45,349 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:15:45,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:45,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:45,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Loop [2021-07-06 18:15:45,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:45,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:45,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:45,469 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:15:45,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,471 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) [2021-07-06 18:15:45,472 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 [2021-07-06 18:15:45,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:45,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:45,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:45,499 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: [] [2021-07-06 18:15:45,515 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 [2021-07-06 18:15:45,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,516 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) [2021-07-06 18:15:45,520 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 [2021-07-06 18:15:45,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:45,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:45,535 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:45,535 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: [] [2021-07-06 18:15:45,553 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 [2021-07-06 18:15:45,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,561 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) [2021-07-06 18:15:45,562 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 [2021-07-06 18:15:45,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:45,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:45,588 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 [2021-07-06 18:15:45,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,605 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) [2021-07-06 18:15:45,606 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 [2021-07-06 18:15:45,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:15:45,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:45,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:45,671 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=-6, ULTIMATE.start_main_~x~0=6} Honda state: {ULTIMATE.start_main_~c~0=-6, ULTIMATE.start_main_~x~0=6} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_~x~0=2}, {ULTIMATE.start_main_~c~0=-1, ULTIMATE.start_main_~x~0=3}, {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_~x~0=1}] Lambdas: [1, 1, 1] Nus: [0, 1] [2021-07-06 18:15:45,687 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 [2021-07-06 18:15:45,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:45,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 18:15:45,745 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:45,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:45,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:45,745 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:45,745 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:15:45,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:45,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:45,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Lasso [2021-07-06 18:15:45,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:45,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:45,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:45,859 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:45,859 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:15:45,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,875 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) [2021-07-06 18:15:45,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:45,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:45,931 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 [2021-07-06 18:15:45,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:45,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:15:45,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-07-06 18:15:45,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:45,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:45,968 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) [2021-07-06 18:15:45,969 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 [2021-07-06 18:15:45,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:45,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:46,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:46,017 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: [] [2021-07-06 18:15:46,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:46,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:46,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:46,043 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) [2021-07-06 18:15:46,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:46,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:46,049 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 [2021-07-06 18:15:46,057 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:46,057 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:15:46,072 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 [2021-07-06 18:15:46,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:46,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:46,074 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) [2021-07-06 18:15:46,075 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 [2021-07-06 18:15:46,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:46,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:46,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:46,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:15:46,108 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 [2021-07-06 18:15:46,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:46,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:46,109 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) [2021-07-06 18:15:46,110 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 [2021-07-06 18:15:46,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:46,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:46,143 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 [2021-07-06 18:15:46,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:46,145 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) [2021-07-06 18:15:46,148 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 [2021-07-06 18:15:46,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:15:46,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:56,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:56,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~c~0=-14848, ULTIMATE.start_main_~x~0=14849} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-1, ULTIMATE.start_main_~x~0=14847}, {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~c~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 2] Nus: [1, 1] [2021-07-06 18:15:56,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-07-06 18:15:56,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:56,225 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) [2021-07-06 18:15:56,226 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 [2021-07-06 18:15:56,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:56,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:56,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:56,265 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: [] [2021-07-06 18:15:56,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:56,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:15:56 BoogieIcfgContainer [2021-07-06 18:15:56,310 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:15:56,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:15:56,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:15:56,311 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:15:56,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:44" (3/4) ... [2021-07-06 18:15:56,314 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 18:15:56,348 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 18:15:56,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:15:56,350 INFO L168 Benchmark]: Toolchain (without parser) took 11864.44 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 29.5 MB in the beginning and 46.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,350 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:56,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.10 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 34.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.46 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 34.2 MB in the beginning and 54.8 MB in the end (delta: -20.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,352 INFO L168 Benchmark]: Boogie Preprocessor took 15.16 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 54.0 MB in the end (delta: 821.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:56,353 INFO L168 Benchmark]: RCFGBuilder took 248.66 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 45.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,353 INFO L168 Benchmark]: BuchiAutomizer took 11340.43 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 48.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,353 INFO L168 Benchmark]: Witness Printer took 37.71 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:56,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 168.10 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 34.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.46 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 34.2 MB in the beginning and 54.8 MB in the end (delta: -20.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.16 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 54.0 MB in the end (delta: 821.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 248.66 ms. Allocated memory is still 71.3 MB. Free memory was 53.9 MB in the beginning and 45.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11340.43 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 48.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * Witness Printer took 37.71 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 11.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 11.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf103 neg100 sie102 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.4s - 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. [2021-07-06 18:15:56,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,371 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-07-06 18:15:56,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-07-06 18:15:56,378 WARN L417 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cec5446=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f07915e=0, c=0, ~unnamed0~0~false=0, x=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cec5446=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f07915e=0, c=-14848, ~unnamed0~0~false=0, x=14849} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cec5446=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f07915e=0 + sum_{k=0}^i 0, c=-14848 + sum_{k=0}^i -1, ~unnamed0~0~false=0 + sum_{k=0}^i 0, x=14849 + sum_{k=0}^i 14847 + 1 + 1*k} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [1, 1, 2] Mus: [1, 1] - 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! [2021-07-06 18:15:56,409 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...