./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Sunset.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-restricted-15/Sunset.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 --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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:04:12,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:04:12,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:04:12,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:04:12,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:04:12,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:04:12,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:04:12,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:04:12,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:04:12,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:04:12,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:04:12,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:04:12,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:04:12,644 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:04:12,644 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:04:12,645 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:04:12,645 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:04:12,645 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:04:12,645 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:04:12,646 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:04:12,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:04:12,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:04:12,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:04:12,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:04:12,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:04:12,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:04:12,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:04:12,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:04:12,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:04:12,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:04:12,649 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:04:12,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:04:12,649 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:04:12,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:04:12,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:04:12,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:04:12,651 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:04:12,652 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2024-11-17 08:04:12,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:04:12,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:04:12,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:04:12,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:04:12,874 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:04:12,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sunset.c [2024-11-17 08:04:14,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:04:14,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:04:14,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sunset.c [2024-11-17 08:04:14,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164d35702/8e45fcfadf014e54a96c25451fe1b2c9/FLAG7586ce9d5 [2024-11-17 08:04:14,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/164d35702/8e45fcfadf014e54a96c25451fe1b2c9 [2024-11-17 08:04:14,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:04:14,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:04:14,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:04:14,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:04:14,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:04:14,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2480e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14, skipping insertion in model container [2024-11-17 08:04:14,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:04:14,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:04:14,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:04:14,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:04:14,511 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:04:14,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14 WrapperNode [2024-11-17 08:04:14,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:04:14,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:04:14,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:04:14,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:04:14,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,531 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-11-17 08:04:14,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:04:14,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:04:14,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:04:14,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:04:14,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,544 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:04:14,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,545 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:04:14,548 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:04:14,548 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:04:14,548 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:04:14,549 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (1/1) ... [2024-11-17 08:04:14,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:14,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:14,576 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) [2024-11-17 08:04:14,607 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 [2024-11-17 08:04:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:04:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:04:14,727 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:04:14,728 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:04:14,772 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-17 08:04:14,773 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:04:14,781 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:04:14,781 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:04:14,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:14 BoogieIcfgContainer [2024-11-17 08:04:14,781 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:04:14,782 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:04:14,782 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:04:14,789 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:04:14,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:14,790 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:04:14" (1/3) ... [2024-11-17 08:04:14,790 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@404a3385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:04:14, skipping insertion in model container [2024-11-17 08:04:14,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:14,791 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:14" (2/3) ... [2024-11-17 08:04:14,791 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@404a3385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:04:14, skipping insertion in model container [2024-11-17 08:04:14,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:14,791 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:14" (3/3) ... [2024-11-17 08:04:14,792 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2024-11-17 08:04:14,835 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:04:14,835 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:04:14,835 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:04:14,835 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:04:14,835 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:04:14,836 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:04:14,836 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:04:14,836 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:04:14,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2024-11-17 08:04:14,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:04:14,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:14,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:14,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:04:14,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:14,857 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:04:14,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2024-11-17 08:04:14,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:04:14,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:14,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:14,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:04:14,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:14,864 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2#L9true [2024-11-17 08:04:14,865 INFO L747 eck$LassoCheckResult]: Loop: 2#L9true assume true; 7#L9-1true assume !!(main_~i~0#1 > 10); 8#L10true assume 25 == main_~i~0#1;main_~i~0#1 := 30; 5#L13true assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2#L9true [2024-11-17 08:04:14,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:14,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1344, now seen corresponding path program 1 times [2024-11-17 08:04:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:14,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465025104] [2024-11-17 08:04:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:14,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:14,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1199486, now seen corresponding path program 1 times [2024-11-17 08:04:14,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:14,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47719098] [2024-11-17 08:04:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:14,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:14,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:14,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1241488189, now seen corresponding path program 1 times [2024-11-17 08:04:14,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:14,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675308033] [2024-11-17 08:04:14,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:14,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:14,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:15,024 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:15,024 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:15,024 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:15,025 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:15,025 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:15,025 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,025 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:15,025 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:15,025 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2024-11-17 08:04:15,025 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:15,025 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:15,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,089 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:15,089 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:15,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,092 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) [2024-11-17 08:04:15,094 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 [2024-11-17 08:04:15,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:15,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:15,116 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:15,117 INFO L401 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: [] [2024-11-17 08:04:15,127 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 [2024-11-17 08:04:15,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,129 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) [2024-11-17 08:04:15,130 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 [2024-11-17 08:04:15,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:15,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:15,154 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:15,155 INFO L401 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: [] [2024-11-17 08:04:15,165 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 [2024-11-17 08:04:15,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,168 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) [2024-11-17 08:04:15,173 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 [2024-11-17 08:04:15,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:15,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:15,203 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 [2024-11-17 08:04:15,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,206 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) [2024-11-17 08:04:15,207 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 [2024-11-17 08:04:15,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:15,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:15,221 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:15,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:04:15,234 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:15,234 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:15,234 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:15,234 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:15,234 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:15,234 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,234 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:15,234 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:15,235 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2024-11-17 08:04:15,235 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:15,235 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:15,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,289 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:15,293 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:15,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,296 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) [2024-11-17 08:04:15,298 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 [2024-11-17 08:04:15,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:15,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:15,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:15,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:15,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:15,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:15,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:15,327 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:15,350 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 [2024-11-17 08:04:15,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,352 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) [2024-11-17 08:04:15,353 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 [2024-11-17 08:04:15,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:15,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:15,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:15,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:15,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:15,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:15,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:15,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:15,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-17 08:04:15,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,385 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) [2024-11-17 08:04:15,386 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 [2024-11-17 08:04:15,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:15,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:15,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:15,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:15,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:15,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:15,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:15,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:15,401 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:15,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:15,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:15,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:15,424 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) [2024-11-17 08:04:15,426 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 [2024-11-17 08:04:15,426 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:15,427 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:15,427 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:15,427 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 27 Supporting invariants [] [2024-11-17 08:04:15,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:15,446 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:15,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:15,498 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:15,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:15,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:15,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:15,604 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:15,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-17 08:04:15,678 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Result 23 states and 31 transitions. Complement of second has 6 states. [2024-11-17 08:04:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-17 08:04:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-17 08:04:15,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-17 08:04:15,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:15,698 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:15,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:15,722 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:15,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:15,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:15,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:15,780 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:15,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-17 08:04:15,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Result 24 states and 33 transitions. Complement of second has 8 states. [2024-11-17 08:04:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-17 08:04:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2024-11-17 08:04:15,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-17 08:04:15,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:15,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-17 08:04:15,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:15,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-17 08:04:15,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:15,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2024-11-17 08:04:15,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:04:15,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 21 transitions. [2024-11-17 08:04:15,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-17 08:04:15,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-17 08:04:15,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-11-17 08:04:15,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:15,853 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-11-17 08:04:15,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-11-17 08:04:15,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-11-17 08:04:15,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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) [2024-11-17 08:04:15,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2024-11-17 08:04:15,889 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-17 08:04:15,890 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-17 08:04:15,890 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:04:15,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2024-11-17 08:04:15,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:04:15,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:15,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:15,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-17 08:04:15,891 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:15,891 INFO L745 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 134#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 137#L9 assume true; 130#L9-1 assume !!(main_~i~0#1 > 10); 135#L10 assume !(25 == main_~i~0#1); 139#L13 [2024-11-17 08:04:15,891 INFO L747 eck$LassoCheckResult]: Loop: 139#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 126#L9 assume true; 127#L9-1 assume !!(main_~i~0#1 > 10); 138#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 139#L13 [2024-11-17 08:04:15,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 40048007, now seen corresponding path program 1 times [2024-11-17 08:04:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355012160] [2024-11-17 08:04:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:15,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:15,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1021796, now seen corresponding path program 2 times [2024-11-17 08:04:15,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:15,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621665881] [2024-11-17 08:04:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:15,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:15,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:15,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1212185066, now seen corresponding path program 1 times [2024-11-17 08:04:15,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:15,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264244848] [2024-11-17 08:04:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:15,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:15,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:15,965 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:15,965 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:15,966 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:15,966 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:15,966 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:15,966 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:15,966 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:15,966 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:15,966 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2024-11-17 08:04:15,966 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:15,966 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:15,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:15,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,031 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:16,032 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:16,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,033 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) [2024-11-17 08:04:16,034 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 [2024-11-17 08:04:16,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,055 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:16,055 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:16,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-17 08:04:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,069 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) [2024-11-17 08:04:16,073 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 [2024-11-17 08:04:16,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,093 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:16,093 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:16,106 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 [2024-11-17 08:04:16,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,108 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) [2024-11-17 08:04:16,110 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 [2024-11-17 08:04:16,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-17 08:04:16,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,141 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2024-11-17 08:04:16,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:04:16,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:16,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,161 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:16,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:16,176 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:16,176 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:16,176 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:16,176 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:16,176 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:16,176 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,176 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:16,176 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:16,176 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2024-11-17 08:04:16,176 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:16,176 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:16,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,221 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:16,221 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:16,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,223 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2024-11-17 08:04:16,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-17 08:04:16,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:16,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:16,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:16,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:16,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:16,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:16,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:16,247 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:16,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:16,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,259 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2024-11-17 08:04:16,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-17 08:04:16,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:16,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:16,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:16,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:16,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:16,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:16,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:16,278 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:16,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-17 08:04:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,291 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2024-11-17 08:04:16,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-17 08:04:16,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:16,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:16,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:16,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:16,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:16,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:16,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:16,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:16,306 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:16,308 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:16,308 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:16,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,310 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2024-11-17 08:04:16,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-17 08:04:16,312 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:16,312 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:16,312 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:16,312 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 28 Supporting invariants [] [2024-11-17 08:04:16,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-17 08:04:16,324 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:16,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:16,359 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:16,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-17 08:04:16,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Result 29 states and 41 transitions. Complement of second has 5 states. [2024-11-17 08:04:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-17 08:04:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-17 08:04:16,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-17 08:04:16,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-17 08:04:16,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-17 08:04:16,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2024-11-17 08:04:16,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-17 08:04:16,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 40 transitions. [2024-11-17 08:04:16,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-17 08:04:16,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-17 08:04:16,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 40 transitions. [2024-11-17 08:04:16,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:16,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 40 transitions. [2024-11-17 08:04:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 40 transitions. [2024-11-17 08:04:16,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-17 08:04:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 25 states have internal predecessors, (37), 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) [2024-11-17 08:04:16,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 37 transitions. [2024-11-17 08:04:16,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 37 transitions. [2024-11-17 08:04:16,380 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2024-11-17 08:04:16,380 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:04:16,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 37 transitions. [2024-11-17 08:04:16,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-17 08:04:16,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:16,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:16,381 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:04:16,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:16,382 INFO L745 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 225#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 229#L9 assume true; 235#L9-1 assume !!(main_~i~0#1 > 10); 234#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 220#L13 assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20; 221#L9 [2024-11-17 08:04:16,382 INFO L747 eck$LassoCheckResult]: Loop: 221#L9 assume true; 237#L9-1 assume !!(main_~i~0#1 > 10); 240#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 239#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 221#L9 [2024-11-17 08:04:16,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1241488190, now seen corresponding path program 1 times [2024-11-17 08:04:16,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:16,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142975320] [2024-11-17 08:04:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:16,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:16,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:04:16,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142975320] [2024-11-17 08:04:16,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142975320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:04:16,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:04:16,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:04:16,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295009858] [2024-11-17 08:04:16,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:04:16,417 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:04:16,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1199486, now seen corresponding path program 3 times [2024-11-17 08:04:16,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:16,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974131268] [2024-11-17 08:04:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:16,440 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:16,440 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:16,440 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:16,441 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:16,441 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:16,441 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,441 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:16,441 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:16,441 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2024-11-17 08:04:16,441 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:16,441 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:16,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,474 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:16,474 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:16,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,476 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2024-11-17 08:04:16,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:04:16,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,498 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:16,498 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:16,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-17 08:04:16,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,510 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2024-11-17 08:04:16,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:04:16,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-17 08:04:16,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,543 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2024-11-17 08:04:16,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:04:16,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:16,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,563 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:16,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:16,582 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:16,582 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:16,582 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:16,582 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:16,582 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:16,582 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,582 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:16,582 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:16,583 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2024-11-17 08:04:16,583 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:16,583 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:16,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,625 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 [2024-11-17 08:04:16,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:04:16,654 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:16,655 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,656 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2024-11-17 08:04:16,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-17 08:04:16,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:16,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:16,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:16,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:16,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:16,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:16,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:16,671 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:16,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-17 08:04:16,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,683 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2024-11-17 08:04:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-17 08:04:16,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:16,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:16,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:16,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:16,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:16,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:16,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:16,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:16,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:16,699 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:16,699 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:16,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,700 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2024-11-17 08:04:16,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-17 08:04:16,702 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:16,702 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:16,702 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:16,702 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 27 Supporting invariants [] [2024-11-17 08:04:16,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:16,713 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:16,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:16,751 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:16,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 37 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:16,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 37 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Result 56 states and 80 transitions. Complement of second has 5 states. [2024-11-17 08:04:16,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-17 08:04:16,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-17 08:04:16,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,763 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:16,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:16,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:16,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:16,796 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:16,796 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 37 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:16,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 37 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Result 58 states and 84 transitions. Complement of second has 7 states. [2024-11-17 08:04:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-11-17 08:04:16,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-17 08:04:16,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-17 08:04:16,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-17 08:04:16,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:16,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 84 transitions. [2024-11-17 08:04:16,816 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-11-17 08:04:16,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 56 states and 82 transitions. [2024-11-17 08:04:16,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-11-17 08:04:16,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-17 08:04:16,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 82 transitions. [2024-11-17 08:04:16,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:16,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 82 transitions. [2024-11-17 08:04:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 82 transitions. [2024-11-17 08:04:16,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-17 08:04:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 53 states have internal predecessors, (77), 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) [2024-11-17 08:04:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 77 transitions. [2024-11-17 08:04:16,823 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 77 transitions. [2024-11-17 08:04:16,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:04:16,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:04:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:04:16,829 INFO L87 Difference]: Start difference. First operand 54 states and 77 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-17 08:04:16,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:04:16,842 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2024-11-17 08:04:16,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2024-11-17 08:04:16,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-17 08:04:16,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 37 states and 47 transitions. [2024-11-17 08:04:16,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-11-17 08:04:16,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-11-17 08:04:16,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 47 transitions. [2024-11-17 08:04:16,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:16,843 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-11-17 08:04:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 47 transitions. [2024-11-17 08:04:16,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2024-11-17 08:04:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 28 states have internal predecessors, (38), 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) [2024-11-17 08:04:16,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-17 08:04:16,845 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-17 08:04:16,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:04:16,845 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-17 08:04:16,846 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:04:16,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2024-11-17 08:04:16,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:04:16,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:16,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:16,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2024-11-17 08:04:16,846 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:16,847 INFO L745 eck$LassoCheckResult]: Stem: 543#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 544#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 548#L9 assume true; 555#L9-1 assume !!(main_~i~0#1 > 10); 552#L10 assume !(25 == main_~i~0#1); 553#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 551#L9 assume true; 545#L9-1 assume !!(main_~i~0#1 > 10); 546#L10 assume !(25 == main_~i~0#1); 540#L13 [2024-11-17 08:04:16,847 INFO L747 eck$LassoCheckResult]: Loop: 540#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 536#L9 assume true; 537#L9-1 assume !!(main_~i~0#1 > 10); 554#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 540#L13 [2024-11-17 08:04:16,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1212185067, now seen corresponding path program 1 times [2024-11-17 08:04:16,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:16,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995109997] [2024-11-17 08:04:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:16,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1021796, now seen corresponding path program 4 times [2024-11-17 08:04:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:16,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53613511] [2024-11-17 08:04:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:16,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -565375922, now seen corresponding path program 2 times [2024-11-17 08:04:16,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:16,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101910350] [2024-11-17 08:04:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:16,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:16,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:16,880 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:16,880 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:16,880 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:16,880 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:16,880 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:16,880 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,880 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:16,880 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:16,881 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration4_Loop [2024-11-17 08:04:16,881 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:16,881 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:16,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:16,911 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:16,911 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:16,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,913 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2024-11-17 08:04:16,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-17 08:04:16,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,944 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:16,944 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:16,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-17 08:04:16,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,959 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2024-11-17 08:04:16,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-17 08:04:16,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:16,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:16,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:16,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:16,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:16,991 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2024-11-17 08:04:16,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-17 08:04:16,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:16,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,008 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:17,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,019 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:17,019 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:17,019 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:17,019 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:17,019 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:17,019 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,019 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:17,020 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:17,020 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration4_Loop [2024-11-17 08:04:17,020 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:17,020 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:17,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,051 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:17,051 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,052 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2024-11-17 08:04:17,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-17 08:04:17,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:17,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:17,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:17,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:17,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:17,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:17,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:17,068 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:17,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-17 08:04:17,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,082 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2024-11-17 08:04:17,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-17 08:04:17,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:17,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:17,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:17,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:17,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:17,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:17,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:17,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:17,097 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:17,098 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:17,098 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:17,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,100 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2024-11-17 08:04:17,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-17 08:04:17,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:17,103 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:17,103 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:17,103 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 28 Supporting invariants [] [2024-11-17 08:04:17,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,114 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:17,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:17,146 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:17,146 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Result 39 states and 52 transitions. Complement of second has 5 states. [2024-11-17 08:04:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-17 08:04:17,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-17 08:04:17,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,159 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:17,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:17,192 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:17,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Result 39 states and 52 transitions. Complement of second has 5 states. [2024-11-17 08:04:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-17 08:04:17,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-17 08:04:17,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,203 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:17,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:17,234 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:17,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Result 43 states and 59 transitions. Complement of second has 6 states. [2024-11-17 08:04:17,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-17 08:04:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-11-17 08:04:17,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-17 08:04:17,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-17 08:04:17,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 8 letters. [2024-11-17 08:04:17,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 59 transitions. [2024-11-17 08:04:17,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:04:17,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 36 states and 47 transitions. [2024-11-17 08:04:17,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-17 08:04:17,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-17 08:04:17,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2024-11-17 08:04:17,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:17,250 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-11-17 08:04:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2024-11-17 08:04:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 18. [2024-11-17 08:04:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2024-11-17 08:04:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2024-11-17 08:04:17,251 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-11-17 08:04:17,251 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-11-17 08:04:17,251 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:04:17,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2024-11-17 08:04:17,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:04:17,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:17,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:17,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:04:17,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:17,252 INFO L745 eck$LassoCheckResult]: Stem: 841#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 842#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 843#L9 assume true; 847#L9-1 assume !!(main_~i~0#1 > 10); 851#L10 assume !(25 == main_~i~0#1); 850#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 834#L9 [2024-11-17 08:04:17,252 INFO L747 eck$LassoCheckResult]: Loop: 834#L9 assume true; 835#L9-1 assume !!(main_~i~0#1 > 10); 844#L10 assume !(25 == main_~i~0#1); 838#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 834#L9 [2024-11-17 08:04:17,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1241488220, now seen corresponding path program 2 times [2024-11-17 08:04:17,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374363182] [2024-11-17 08:04:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1199517, now seen corresponding path program 1 times [2024-11-17 08:04:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106844124] [2024-11-17 08:04:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1076968584, now seen corresponding path program 3 times [2024-11-17 08:04:17,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503236621] [2024-11-17 08:04:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,284 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:17,284 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:17,284 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:17,284 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:17,284 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:17,284 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,284 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:17,284 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:17,284 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2024-11-17 08:04:17,284 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:17,284 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:17,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,343 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:17,343 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:17,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,345 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2024-11-17 08:04:17,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-17 08:04:17,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,365 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:17,365 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:17,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-17 08:04:17,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,380 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2024-11-17 08:04:17,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-17 08:04:17,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,399 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:17,399 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:17,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,411 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2024-11-17 08:04:17,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-17 08:04:17,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,444 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2024-11-17 08:04:17,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-17 08:04:17,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:17,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,481 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:17,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,488 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:17,488 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:17,488 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:17,488 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:17,488 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:17,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,489 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:17,489 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:17,489 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2024-11-17 08:04:17,489 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:17,489 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:17,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,548 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:17,548 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,550 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2024-11-17 08:04:17,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-17 08:04:17,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:17,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:17,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:17,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:17,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:17,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:17,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:17,568 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:17,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,579 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2024-11-17 08:04:17,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-17 08:04:17,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:17,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:17,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:17,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:17,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:17,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:17,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:17,595 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:17,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,607 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2024-11-17 08:04:17,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-17 08:04:17,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:17,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:17,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:17,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:17,618 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:04:17,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:17,619 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-17 08:04:17,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:17,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:17,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:17,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:04:17,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,627 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2024-11-17 08:04:17,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-17 08:04:17,628 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:17,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:17,628 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:17,628 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:04:17,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-17 08:04:17,650 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:17,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:17,668 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:17,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:17,681 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:17,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:17,695 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Result 49 states and 61 transitions. Complement of second has 7 states. [2024-11-17 08:04:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-17 08:04:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-17 08:04:17,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-17 08:04:17,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-17 08:04:17,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-17 08:04:17,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:17,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2024-11-17 08:04:17,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:04:17,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 39 states and 49 transitions. [2024-11-17 08:04:17,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-17 08:04:17,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-17 08:04:17,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2024-11-17 08:04:17,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:17,699 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 49 transitions. [2024-11-17 08:04:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2024-11-17 08:04:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2024-11-17 08:04:17,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 31 states have internal predecessors, (42), 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) [2024-11-17 08:04:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2024-11-17 08:04:17,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-11-17 08:04:17,701 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-11-17 08:04:17,701 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:04:17,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2024-11-17 08:04:17,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:04:17,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:17,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:17,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-17 08:04:17,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:17,702 INFO L745 eck$LassoCheckResult]: Stem: 963#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 964#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 965#L9 assume true; 977#L9-1 assume !!(main_~i~0#1 > 10); 985#L10 assume !(25 == main_~i~0#1); 983#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 961#L9 assume true; 973#L9-1 assume !!(main_~i~0#1 > 10); 972#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 971#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 960#L9 [2024-11-17 08:04:17,702 INFO L747 eck$LassoCheckResult]: Loop: 960#L9 assume true; 980#L9-1 assume !!(main_~i~0#1 > 10); 979#L10 assume !(25 == main_~i~0#1); 959#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 960#L9 [2024-11-17 08:04:17,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1076968615, now seen corresponding path program 3 times [2024-11-17 08:04:17,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660578801] [2024-11-17 08:04:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1199517, now seen corresponding path program 2 times [2024-11-17 08:04:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589964864] [2024-11-17 08:04:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:17,717 INFO L85 PathProgramCache]: Analyzing trace with hash -375413515, now seen corresponding path program 4 times [2024-11-17 08:04:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:17,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616636728] [2024-11-17 08:04:17,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:17,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:17,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:17,743 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:17,743 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:17,743 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:17,743 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:17,743 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:17,743 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,743 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:17,743 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:17,743 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration6_Loop [2024-11-17 08:04:17,743 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:17,744 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:17,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,807 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:17,807 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:17,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,810 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2024-11-17 08:04:17,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-17 08:04:17,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,834 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:17,834 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:17,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-17 08:04:17,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,847 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2024-11-17 08:04:17,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-17 08:04:17,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,867 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:17,867 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:17,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,879 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2024-11-17 08:04:17,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-17 08:04:17,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:17,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-17 08:04:17,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-17 08:04:17,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:17,932 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2024-11-17 08:04:17,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-17 08:04:17,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:17,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:17,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-17 08:04:17,968 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:17,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:17,976 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:17,976 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:17,976 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:17,976 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:17,976 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:17,976 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:17,976 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:17,976 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:17,976 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration6_Loop [2024-11-17 08:04:17,976 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:17,976 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:17,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:17,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,033 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:18,033 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:18,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,036 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2024-11-17 08:04:18,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-17 08:04:18,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:18,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:18,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:18,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:18,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:18,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:18,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:18,052 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:18,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-17 08:04:18,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,063 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2024-11-17 08:04:18,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-17 08:04:18,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:18,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:18,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:18,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:18,076 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:04:18,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:18,077 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-17 08:04:18,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:18,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:18,082 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:18,082 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:04:18,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,083 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2024-11-17 08:04:18,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-17 08:04:18,086 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:18,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:18,089 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:18,089 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:04:18,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,099 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:18,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,124 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,136 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:18,136 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,148 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Result 49 states and 61 transitions. Complement of second has 7 states. [2024-11-17 08:04:18,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-17 08:04:18,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-17 08:04:18,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,149 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:18,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,171 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,185 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:18,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,194 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Result 49 states and 61 transitions. Complement of second has 7 states. [2024-11-17 08:04:18,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-17 08:04:18,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-17 08:04:18,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,195 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:18,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,220 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,232 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:18,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 42 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Result 50 states and 65 transitions. Complement of second has 6 states. [2024-11-17 08:04:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:18,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-17 08:04:18,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-11-17 08:04:18,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-17 08:04:18,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 4 letters. [2024-11-17 08:04:18,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-17 08:04:18,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2024-11-17 08:04:18,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:04:18,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 46 transitions. [2024-11-17 08:04:18,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-17 08:04:18,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-17 08:04:18,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2024-11-17 08:04:18,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:18,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2024-11-17 08:04:18,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2024-11-17 08:04:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2024-11-17 08:04:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 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) [2024-11-17 08:04:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2024-11-17 08:04:18,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2024-11-17 08:04:18,250 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2024-11-17 08:04:18,250 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-17 08:04:18,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2024-11-17 08:04:18,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:04:18,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:18,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:18,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:04:18,251 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2024-11-17 08:04:18,251 INFO L745 eck$LassoCheckResult]: Stem: 1304#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1305#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1308#L9 assume true; 1318#L9-1 assume !!(main_~i~0#1 > 10); 1309#L10 assume !(25 == main_~i~0#1); 1310#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1298#L9 [2024-11-17 08:04:18,251 INFO L747 eck$LassoCheckResult]: Loop: 1298#L9 assume true; 1299#L9-1 assume !!(main_~i~0#1 > 10); 1307#L10 assume !(25 == main_~i~0#1); 1303#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1302#L9 assume true; 1315#L9-1 assume !!(main_~i~0#1 > 10); 1314#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 1313#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1298#L9 [2024-11-17 08:04:18,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1241488220, now seen corresponding path program 4 times [2024-11-17 08:04:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:18,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449574156] [2024-11-17 08:04:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:18,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -322147046, now seen corresponding path program 1 times [2024-11-17 08:04:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:18,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525945917] [2024-11-17 08:04:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:18,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -346784395, now seen corresponding path program 5 times [2024-11-17 08:04:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5088624] [2024-11-17 08:04:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:18,287 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:18,288 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:18,288 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:18,288 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:18,288 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:18,288 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,288 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:18,288 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:18,288 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration7_Loop [2024-11-17 08:04:18,288 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:18,288 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:18,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,315 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:18,315 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:18,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,316 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2024-11-17 08:04:18,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-17 08:04:18,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,335 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:18,335 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:18,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,347 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2024-11-17 08:04:18,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-17 08:04:18,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,366 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:18,366 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:18,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,377 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2024-11-17 08:04:18,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-17 08:04:18,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,408 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2024-11-17 08:04:18,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-17 08:04:18,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:18,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,421 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:18,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-17 08:04:18,431 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:18,431 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:18,431 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:18,431 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:18,431 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:18,431 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,431 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:18,432 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:18,432 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration7_Loop [2024-11-17 08:04:18,432 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:18,432 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:18,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,463 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:18,463 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:18,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,467 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2024-11-17 08:04:18,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-17 08:04:18,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:18,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:18,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:18,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:18,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:18,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:18,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:18,482 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:18,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-17 08:04:18,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,494 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2024-11-17 08:04:18,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-17 08:04:18,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:18,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:18,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:18,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:18,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:18,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:18,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:18,509 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:18,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-17 08:04:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,520 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2024-11-17 08:04:18,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-17 08:04:18,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:18,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:18,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:18,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:18,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:18,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:18,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:18,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:18,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:18,537 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:18,537 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:18,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,539 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2024-11-17 08:04:18,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-17 08:04:18,540 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:18,540 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:18,540 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:18,540 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 55 Supporting invariants [] [2024-11-17 08:04:18,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-17 08:04:18,551 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:18,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,594 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:18,594 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-17 08:04:18,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) Result 74 states and 93 transitions. Complement of second has 7 states. [2024-11-17 08:04:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-17 08:04:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-17 08:04:18,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-17 08:04:18,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,612 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:18,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,659 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:18,659 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-17 08:04:18,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) Result 65 states and 81 transitions. Complement of second has 9 states. [2024-11-17 08:04:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:18,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-17 08:04:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2024-11-17 08:04:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-17 08:04:18,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 14 letters. Loop has 8 letters. [2024-11-17 08:04:18,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 16 letters. [2024-11-17 08:04:18,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:18,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 81 transitions. [2024-11-17 08:04:18,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:04:18,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 51 states and 65 transitions. [2024-11-17 08:04:18,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-17 08:04:18,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-17 08:04:18,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 65 transitions. [2024-11-17 08:04:18,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:18,683 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 65 transitions. [2024-11-17 08:04:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 65 transitions. [2024-11-17 08:04:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2024-11-17 08:04:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 40 states have internal predecessors, (54), 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) [2024-11-17 08:04:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2024-11-17 08:04:18,684 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 54 transitions. [2024-11-17 08:04:18,684 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2024-11-17 08:04:18,684 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-17 08:04:18,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 54 transitions. [2024-11-17 08:04:18,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:04:18,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:18,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:18,685 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 2, 2, 1, 1] [2024-11-17 08:04:18,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2024-11-17 08:04:18,685 INFO L745 eck$LassoCheckResult]: Stem: 1589#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1590#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1594#L9 assume true; 1602#L9-1 assume !!(main_~i~0#1 > 10); 1610#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 1609#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1607#L9 assume true; 1608#L9-1 assume !!(main_~i~0#1 > 10); 1619#L10 assume !(25 == main_~i~0#1); 1618#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1612#L9 assume true; 1614#L9-1 assume !!(main_~i~0#1 > 10); 1613#L10 assume !(25 == main_~i~0#1); 1611#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1601#L9 assume true; 1606#L9-1 assume !!(main_~i~0#1 > 10); 1605#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 1599#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1600#L9 [2024-11-17 08:04:18,685 INFO L747 eck$LassoCheckResult]: Loop: 1600#L9 assume true; 1614#L9-1 assume !!(main_~i~0#1 > 10); 1613#L10 assume !(25 == main_~i~0#1); 1611#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1601#L9 assume true; 1606#L9-1 assume !!(main_~i~0#1 > 10); 1605#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 1599#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 1600#L9 [2024-11-17 08:04:18,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,686 INFO L85 PathProgramCache]: Analyzing trace with hash 689569778, now seen corresponding path program 6 times [2024-11-17 08:04:18,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:18,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515723492] [2024-11-17 08:04:18,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:04:18,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515723492] [2024-11-17 08:04:18,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515723492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:04:18,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689912805] [2024-11-17 08:04:18,731 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-17 08:04:18,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:04:18,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,732 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:04:18,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-17 08:04:18,756 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-17 08:04:18,756 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 08:04:18,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:04:18,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:04:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:18,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689912805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:04:18,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:04:18,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-17 08:04:18,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809293618] [2024-11-17 08:04:18,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:04:18,802 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:04:18,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash -322147046, now seen corresponding path program 2 times [2024-11-17 08:04:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:18,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181947962] [2024-11-17 08:04:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:18,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:18,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:18,834 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:18,834 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:18,834 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:18,834 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:18,834 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:18,834 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,834 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:18,834 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:18,834 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration8_Loop [2024-11-17 08:04:18,834 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:18,834 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:18,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,860 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:18,860 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:18,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,865 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2024-11-17 08:04:18,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-17 08:04:18,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,884 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:18,885 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:18,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-17 08:04:18,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,897 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2024-11-17 08:04:18,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-17 08:04:18,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,917 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:18,917 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:18,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,928 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2024-11-17 08:04:18,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-17 08:04:18,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:18,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:18,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:18,966 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2024-11-17 08:04:18,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-17 08:04:18,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:18,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:18,985 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:18,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-17 08:04:18,995 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:18,995 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:18,995 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:18,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:18,995 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:18,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:18,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:18,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:18,995 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration8_Loop [2024-11-17 08:04:18,995 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:18,995 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:18,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:18,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:19,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:19,024 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:19,024 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:19,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:19,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:19,026 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2024-11-17 08:04:19,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-17 08:04:19,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:19,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:19,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:19,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:19,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:19,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:19,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:19,041 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:19,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-17 08:04:19,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:19,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:19,053 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2024-11-17 08:04:19,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-17 08:04:19,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:19,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:19,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:19,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:19,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:19,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:19,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:19,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:19,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:19,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:19,069 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:19,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:19,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:19,073 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2024-11-17 08:04:19,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-17 08:04:19,075 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:19,076 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:19,076 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:19,076 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 55 Supporting invariants [] [2024-11-17 08:04:19,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:19,086 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:19,145 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:19,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,181 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 136 transitions. Complement of second has 7 states. [2024-11-17 08:04:19,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-17 08:04:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-17 08:04:19,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:04:19,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,188 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:19,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-17 08:04:19,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:19,255 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:19,255 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 94 transitions. Complement of second has 9 states. [2024-11-17 08:04:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:19,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2024-11-17 08:04:19,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:04:19,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,277 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:19,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:19,338 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:19,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,353 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 140 states and 180 transitions. Complement of second has 10 states. [2024-11-17 08:04:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-17 08:04:19,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:04:19,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,355 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:19,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:19,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:04:19,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:19,415 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:04:19,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,436 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 106 states and 131 transitions. Complement of second has 11 states. [2024-11-17 08:04:19,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2024-11-17 08:04:19,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:04:19,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 26 letters. Loop has 8 letters. [2024-11-17 08:04:19,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 18 letters. Loop has 16 letters. [2024-11-17 08:04:19,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:19,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 131 transitions. [2024-11-17 08:04:19,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2024-11-17 08:04:19,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 67 states and 83 transitions. [2024-11-17 08:04:19,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-17 08:04:19,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-17 08:04:19,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 83 transitions. [2024-11-17 08:04:19,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:19,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 83 transitions. [2024-11-17 08:04:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 83 transitions. [2024-11-17 08:04:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 36. [2024-11-17 08:04:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 35 states have internal predecessors, (48), 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) [2024-11-17 08:04:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-17 08:04:19,442 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-17 08:04:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:04:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 08:04:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-17 08:04:19,442 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-11-17 08:04:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:04:19,466 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2024-11-17 08:04:19,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 91 transitions. [2024-11-17 08:04:19,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-11-17 08:04:19,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 54 states and 62 transitions. [2024-11-17 08:04:19,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-17 08:04:19,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-17 08:04:19,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 62 transitions. [2024-11-17 08:04:19,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:19,468 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-11-17 08:04:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 62 transitions. [2024-11-17 08:04:19,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2024-11-17 08:04:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 43 states have internal predecessors, (51), 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) [2024-11-17 08:04:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-11-17 08:04:19,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-17 08:04:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 08:04:19,470 INFO L425 stractBuchiCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-17 08:04:19,470 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-17 08:04:19,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 51 transitions. [2024-11-17 08:04:19,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2024-11-17 08:04:19,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:19,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:19,471 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:04:19,471 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 5, 4, 1] [2024-11-17 08:04:19,471 INFO L745 eck$LassoCheckResult]: Stem: 2653#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2654#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2658#L9 assume true; 2677#L9-1 assume !!(main_~i~0#1 > 10); 2662#L10 assume !(25 == main_~i~0#1); 2663#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2672#L9 [2024-11-17 08:04:19,471 INFO L747 eck$LassoCheckResult]: Loop: 2672#L9 assume true; 2670#L9-1 assume !!(main_~i~0#1 > 10); 2666#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 2655#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2649#L9 assume true; 2650#L9-1 assume !!(main_~i~0#1 > 10); 2660#L10 assume !(25 == main_~i~0#1); 2690#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2689#L9 assume true; 2688#L9-1 assume !!(main_~i~0#1 > 10); 2687#L10 assume !(25 == main_~i~0#1); 2686#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2684#L9 assume true; 2681#L9-1 assume !!(main_~i~0#1 > 10); 2683#L10 assume !(25 == main_~i~0#1); 2682#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2680#L9 assume true; 2664#L9-1 assume !!(main_~i~0#1 > 10); 2665#L10 assume !(25 == main_~i~0#1); 2675#L13 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 2672#L9 [2024-11-17 08:04:19,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1241488220, now seen corresponding path program 5 times [2024-11-17 08:04:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:19,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780946319] [2024-11-17 08:04:19,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:19,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:19,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -157428242, now seen corresponding path program 3 times [2024-11-17 08:04:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:19,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434201367] [2024-11-17 08:04:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:19,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:19,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1646343625, now seen corresponding path program 7 times [2024-11-17 08:04:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:19,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75517472] [2024-11-17 08:04:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:19,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:04:19 BoogieIcfgContainer [2024-11-17 08:04:19,580 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:04:19,580 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:04:19,580 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:04:19,583 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:04:19,583 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:14" (3/4) ... [2024-11-17 08:04:19,585 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:04:19,608 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:04:19,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:04:19,608 INFO L158 Benchmark]: Toolchain (without parser) took 5284.95ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 124.4MB in the beginning and 172.3MB in the end (delta: -47.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,608 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:04:19,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.08ms. Allocated memory is still 190.8MB. Free memory was 124.2MB in the beginning and 112.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.05ms. Allocated memory is still 190.8MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,609 INFO L158 Benchmark]: Boogie Preprocessor took 15.40ms. Allocated memory is still 190.8MB. Free memory was 110.9MB in the beginning and 109.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,609 INFO L158 Benchmark]: IcfgBuilder took 233.58ms. Allocated memory is still 190.8MB. Free memory was 109.5MB in the beginning and 157.6MB in the end (delta: -48.1MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,609 INFO L158 Benchmark]: BuchiAutomizer took 4797.60ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 157.6MB in the beginning and 174.4MB in the end (delta: -16.8MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,609 INFO L158 Benchmark]: Witness Printer took 27.67ms. Allocated memory is still 251.7MB. Free memory was 174.4MB in the beginning and 172.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:19,610 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.08ms. Allocated memory is still 190.8MB. Free memory was 124.2MB in the beginning and 112.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.05ms. Allocated memory is still 190.8MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.40ms. Allocated memory is still 190.8MB. Free memory was 110.9MB in the beginning and 109.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 233.58ms. Allocated memory is still 190.8MB. Free memory was 109.5MB in the beginning and 157.6MB in the end (delta: -48.1MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4797.60ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 157.6MB in the beginning and 174.4MB in the end (delta: -16.8MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Witness Printer took 27.67ms. Allocated memory is still 251.7MB. Free memory was 174.4MB in the beginning and 172.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (2 trivial, 5 deterministic, 3 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -1 * i) + 27) and consists of 5 locations. One deterministic module has affine ranking function (((long) -1 * i) + 28) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * i) + 27) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 55) and consists of 5 locations. One nondeterministic module has affine ranking function (((long) -1 * i) + 28) and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 55) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 44 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 9 iterations. TraceHistogramMax:5. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 101 StatesRemovedByMinimization, 10 NontrivialMinimizations. 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 [2, 3, 2, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/8 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 164 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax230 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf89 smp100 dnf115 smp96 tf112 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] Loop: [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] Loop: [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:04:19,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:19,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)