./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-19 17:01:27,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:01:27,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:01:27,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:01:27,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:01:27,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:01:27,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:01:27,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:01:27,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:01:27,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:01:27,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:01:27,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:01:27,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:01:27,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:01:27,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:01:27,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:01:27,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:01:27,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:01:27,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:01:27,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:01:27,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:01:27,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:01:27,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:01:27,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:01:27,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:01:27,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:01:27,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:01:27,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:01:27,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:01:27,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:01:27,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:01:27,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:01:27,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:01:27,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:01:27,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:01:27,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:01:27,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:01:27,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:01:27,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:01:27,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:01:27,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:01:27,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:01:27,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:01:27,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:01:27,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:01:27,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:01:27,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:01:27,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:01:27,731 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:01:27,731 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:01:27,731 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:01:27,731 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:01:27,732 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:01:27,732 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:01:27,732 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:01:27,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:01:27,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:01:27,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:01:27,734 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:01:27,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:01:27,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:01:27,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:01:27,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:01:27,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:01:27,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:01:27,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:01:27,736 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:01:27,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6edfc33d3e5e116b8b5f39fddb65c59ef052d6dfaffe394b38d04501128bfe34 [2021-12-19 17:01:27,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:01:27,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:01:27,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:01:27,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:01:27,924 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:01:27,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-3.c [2021-12-19 17:01:27,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4150ae833/3d87347a66c04b62a5f69cd4afddbe8b/FLAGcdf7a1994 [2021-12-19 17:01:28,366 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:01:28,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-3.c [2021-12-19 17:01:28,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4150ae833/3d87347a66c04b62a5f69cd4afddbe8b/FLAGcdf7a1994 [2021-12-19 17:01:28,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4150ae833/3d87347a66c04b62a5f69cd4afddbe8b [2021-12-19 17:01:28,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:01:28,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:01:28,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:01:28,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:01:28,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:01:28,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a28253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28, skipping insertion in model container [2021-12-19 17:01:28,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:01:28,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:01:28,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:01:28,518 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:01:28,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:01:28,537 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:01:28,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28 WrapperNode [2021-12-19 17:01:28,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:01:28,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:01:28,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:01:28,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:01:28,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,562 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-12-19 17:01:28,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:01:28,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:01:28,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:01:28,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:01:28,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:01:28,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:01:28,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:01:28,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:01:28,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (1/1) ... [2021-12-19 17:01:28,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:28,612 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) [2021-12-19 17:01:28,635 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 [2021-12-19 17:01:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:01:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:01:28,684 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:01:28,685 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:01:28,739 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:01:28,744 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:01:28,744 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 17:01:28,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:01:28 BoogieIcfgContainer [2021-12-19 17:01:28,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:01:28,746 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:01:28,746 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:01:28,751 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:01:28,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:28,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:01:28" (1/3) ... [2021-12-19 17:01:28,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e117105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:01:28, skipping insertion in model container [2021-12-19 17:01:28,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:28,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:01:28" (2/3) ... [2021-12-19 17:01:28,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e117105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:01:28, skipping insertion in model container [2021-12-19 17:01:28,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:01:28,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:01:28" (3/3) ... [2021-12-19 17:01:28,754 INFO L388 chiAutomizerObserver]: Analyzing ICFG Mysore-3.c [2021-12-19 17:01:28,782 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:01:28,782 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:01:28,783 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:01:28,783 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:01:28,783 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:01:28,783 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:01:28,783 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:01:28,783 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:01:28,793 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) [2021-12-19 17:01:28,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:01:28,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:01:28,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:01:28,807 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:01:28,807 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:01:28,807 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:01:28,808 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) [2021-12-19 17:01:28,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:01:28,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:01:28,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:01:28,810 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:01:28,810 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:01:28,814 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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; 4#L18true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 10#L19true assume !!(-65535 <= main_~c~0#1 && main_~c~0#1 <= 65535); 11#L20true assume main_~c~0#1 < 0; 6#L21-2true [2021-12-19 17:01:28,815 INFO L793 eck$LassoCheckResult]: Loop: 6#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; 6#L21-2true [2021-12-19 17:01:28,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:28,819 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-12-19 17:01:28,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:28,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73334123] [2021-12-19 17:01:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:28,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,873 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2021-12-19 17:01:28,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:28,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698397394] [2021-12-19 17:01:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:28,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,910 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:01:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 889571281, now seen corresponding path program 1 times [2021-12-19 17:01:28,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:01:28,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894783272] [2021-12-19 17:01:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:01:28,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:01:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,917 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:01:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:01:28,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:01:28,990 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:01:29,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:01:29,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:01:29,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:01:29,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:01:29,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:01:29,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:01:29,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Loop [2021-12-19 17:01:29,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:01:29,005 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:01:29,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,111 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:01:29,111 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:01:29,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,114 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) [2021-12-19 17:01:29,122 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 [2021-12-19 17:01:29,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:29,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:29,153 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:01:29,153 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: [] [2021-12-19 17:01:29,169 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 [2021-12-19 17:01:29,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,171 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) [2021-12-19 17:01:29,178 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 [2021-12-19 17:01:29,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:29,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:29,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:01:29,192 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: [] [2021-12-19 17:01:29,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-19 17:01:29,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,209 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) [2021-12-19 17:01:29,210 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 [2021-12-19 17:01:29,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:29,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:29,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-19 17:01:29,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,242 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) [2021-12-19 17:01:29,243 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 [2021-12-19 17:01:29,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:01:29,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:29,304 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:01:29,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~c~0#1=-3} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~c~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, 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=0, ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2021-12-19 17:01:29,320 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 [2021-12-19 17:01:29,367 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:01:29,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:01:29,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:01:29,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:01:29,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:01:29,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:01:29,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:01:29,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-3.c_Iteration1_Lasso [2021-12-19 17:01:29,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:01:29,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:01:29,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:01:29,434 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:01:29,434 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:01:29,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,441 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) [2021-12-19 17:01:29,442 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 [2021-12-19 17:01:29,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:01:29,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:01:29,477 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 [2021-12-19 17:01:29,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:01:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:01:29,479 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) [2021-12-19 17:01:29,479 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 [2021-12-19 17:01:29,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:01:29,480 INFO L160 nArgumentSynthesizer]: Using integer mode.