./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/gr2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/loop-lit/gr2006.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 20:21:59,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 20:21:59,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-17 20:21:59,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 20:21:59,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 20:21:59,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 20:21:59,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 20:21:59,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 20:21:59,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 20:21:59,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 20:21:59,120 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 20:21:59,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 20:21:59,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 20:21:59,121 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 20:21:59,121 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 20:21:59,121 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 20:21:59,121 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 20:21:59,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 20:21:59,122 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 20:21:59,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 20:21:59,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 20:21:59,123 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 20:21:59,123 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 [2025-03-17 20:21:59,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 20:21:59,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 20:21:59,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 20:21:59,328 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 20:21:59,328 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 20:21:59,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gr2006.i [2025-03-17 20:22:00,411 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459218814/0329d7b28b0843b29eccf5bb92303e07/FLAG270ad8b14 [2025-03-17 20:22:00,589 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 20:22:00,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i [2025-03-17 20:22:00,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459218814/0329d7b28b0843b29eccf5bb92303e07/FLAG270ad8b14 [2025-03-17 20:22:00,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459218814/0329d7b28b0843b29eccf5bb92303e07 [2025-03-17 20:22:00,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 20:22:00,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 20:22:00,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 20:22:00,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 20:22:00,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 20:22:00,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7885d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00, skipping insertion in model container [2025-03-17 20:22:00,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 20:22:00,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:22:00,726 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 20:22:00,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:22:00,746 INFO L204 MainTranslator]: Completed translation [2025-03-17 20:22:00,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00 WrapperNode [2025-03-17 20:22:00,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 20:22:00,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 20:22:00,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 20:22:00,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 20:22:00,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,765 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2025-03-17 20:22:00,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 20:22:00,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 20:22:00,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 20:22:00,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 20:22:00,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,777 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 20:22:00,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,778 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 20:22:00,780 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 20:22:00,780 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 20:22:00,781 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 20:22:00,781 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (1/1) ... [2025-03-17 20:22:00,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:00,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:00,802 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) [2025-03-17 20:22:00,804 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 [2025-03-17 20:22:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 20:22:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 20:22:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 20:22:00,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 20:22:00,860 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 20:22:00,861 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 20:22:00,931 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-17 20:22:00,931 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 20:22:00,936 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 20:22:00,936 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 20:22:00,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:00 BoogieIcfgContainer [2025-03-17 20:22:00,936 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 20:22:00,937 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 20:22:00,937 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 20:22:00,940 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 20:22:00,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:22:00,941 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 08:22:00" (1/3) ... [2025-03-17 20:22:00,941 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d6726b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:22:00, skipping insertion in model container [2025-03-17 20:22:00,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:22:00,941 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:00" (2/3) ... [2025-03-17 20:22:00,941 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d6726b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:22:00, skipping insertion in model container [2025-03-17 20:22:00,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:22:00,941 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:00" (3/3) ... [2025-03-17 20:22:00,942 INFO L363 chiAutomizerObserver]: Analyzing ICFG gr2006.i [2025-03-17 20:22:00,973 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 20:22:00,973 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 20:22:00,973 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 20:22:00,973 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 20:22:00,973 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 20:22:00,973 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 20:22:00,973 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 20:22:00,973 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 20:22:00,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:22:00,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:00,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:22:00,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:22:00,990 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 20:22:00,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 20:22:00,990 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 20:22:00,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:22:00,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:00,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:22:00,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:22:00,992 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 20:22:00,992 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 20:22:00,996 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_#t~post3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0;main_~y~0#1 := 0;" [2025-03-17 20:22:00,996 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < 50;main_#t~post1#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" [2025-03-17 20:22:00,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2025-03-17 20:22:01,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:01,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357618482] [2025-03-17 20:22:01,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:01,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 20:22:01,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 20:22:01,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,059 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:22:01,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 20:22:01,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 20:22:01,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:22:01,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1312, now seen corresponding path program 1 times [2025-03-17 20:22:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:01,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783889035] [2025-03-17 20:22:01,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:01,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,093 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:22:01,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:22:01,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash 43596, now seen corresponding path program 1 times [2025-03-17 20:22:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:01,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920883874] [2025-03-17 20:22:01,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:01,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:22:01,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:22:01,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,113 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:22:01,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:22:01,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:22:01,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:22:01,193 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:01,193 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:01,193 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:01,193 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:01,194 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:22:01,194 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,194 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:01,194 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:01,194 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration1_Loop [2025-03-17 20:22:01,194 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:01,194 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:01,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,284 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:01,285 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:22:01,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,288 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) [2025-03-17 20:22:01,290 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 [2025-03-17 20:22:01,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,305 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:01,305 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:22:01,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-17 20:22:01,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,313 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) [2025-03-17 20:22:01,314 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 [2025-03-17 20:22:01,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,326 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:01,326 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:22:01,332 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 [2025-03-17 20:22:01,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,334 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) [2025-03-17 20:22:01,335 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 [2025-03-17 20:22:01,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:01,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,357 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) [2025-03-17 20:22:01,359 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 [2025-03-17 20:22:01,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:22:01,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,387 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:01,387 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=1}, {ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 13, 10] Nus: [1, 1] [2025-03-17 20:22:01,392 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 [2025-03-17 20:22:01,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,394 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) [2025-03-17 20:22:01,395 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 [2025-03-17 20:22:01,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,412 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 [2025-03-17 20:22:01,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,415 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) [2025-03-17 20:22:01,415 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 [2025-03-17 20:22:01,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:22:01,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,438 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:22:01,442 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 [2025-03-17 20:22:01,442 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:01,442 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:01,442 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:01,442 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:01,442 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:22:01,442 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,442 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:01,442 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:01,442 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration1_Loop [2025-03-17 20:22:01,442 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:01,442 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:01,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,490 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:01,492 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:22:01,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,496 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) [2025-03-17 20:22:01,496 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 [2025-03-17 20:22:01,498 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 [2025-03-17 20:22:01,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:01,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:01,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:01,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:01,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:01,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:01,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:01,517 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:01,523 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 [2025-03-17 20:22:01,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,525 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) [2025-03-17 20:22:01,527 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 [2025-03-17 20:22:01,528 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 [2025-03-17 20:22:01,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:01,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:01,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:01,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:01,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:01,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:01,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:01,541 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:01,546 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 [2025-03-17 20:22:01,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,547 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) [2025-03-17 20:22:01,549 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 [2025-03-17 20:22:01,550 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 [2025-03-17 20:22:01,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:01,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:01,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:01,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:01,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:01,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:01,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:01,562 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:01,568 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 [2025-03-17 20:22:01,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,570 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) [2025-03-17 20:22:01,571 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 [2025-03-17 20:22:01,572 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 [2025-03-17 20:22:01,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:01,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:01,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:01,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:01,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:01,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:01,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:01,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:22:01,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:22:01,591 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:22:01,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,594 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) [2025-03-17 20:22:01,595 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 [2025-03-17 20:22:01,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:22:01,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:22:01,596 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:22:01,596 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 99 Supporting invariants [] [2025-03-17 20:22:01,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:01,604 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:22:01,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 20:22:01,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 20:22:01,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:01,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:22:01,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:01,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:01,644 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:22:01,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:01,678 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 [2025-03-17 20:22:01,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 20:22:01,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 28 states and 43 transitions. Complement of second has 8 states. [2025-03-17 20:22:01,718 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 [2025-03-17 20:22:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 20:22:01,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2025-03-17 20:22:01,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2025-03-17 20:22:01,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:01,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2025-03-17 20:22:01,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:01,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2025-03-17 20:22:01,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:01,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2025-03-17 20:22:01,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:01,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 9 states and 14 transitions. [2025-03-17 20:22:01,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-17 20:22:01,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-03-17 20:22:01,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 14 transitions. [2025-03-17 20:22:01,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:22:01,736 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 14 transitions. [2025-03-17 20:22:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 14 transitions. [2025-03-17 20:22:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-03-17 20:22:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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) [2025-03-17 20:22:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2025-03-17 20:22:01,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 13 transitions. [2025-03-17 20:22:01,756 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 13 transitions. [2025-03-17 20:22:01,756 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 20:22:01,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 13 transitions. [2025-03-17 20:22:01,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:01,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:22:01,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:22:01,757 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 20:22:01,759 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 20:22:01,760 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_#t~post3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0;main_~y~0#1 := 0;" "assume !(main_~x~0#1 < 50);main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1;" [2025-03-17 20:22:01,760 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" "assume !(main_~x~0#1 < 50);main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1;" [2025-03-17 20:22:01,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1407, now seen corresponding path program 1 times [2025-03-17 20:22:01,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:01,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810169144] [2025-03-17 20:22:01,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:01,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:01,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 20:22:01,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810169144] [2025-03-17 20:22:01,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810169144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 20:22:01,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 20:22:01,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 20:22:01,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743588209] [2025-03-17 20:22:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 20:22:01,795 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-17 20:22:01,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2025-03-17 20:22:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:01,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087394764] [2025-03-17 20:22:01,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:01,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,802 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:22:01,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:01,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:01,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:01,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:01,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:22:01,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:01,853 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:01,853 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:01,853 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:01,854 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:01,854 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:22:01,854 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,854 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:01,854 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:01,854 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration2_Loop [2025-03-17 20:22:01,854 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:01,854 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:01,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,901 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:01,901 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:22:01,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,904 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) [2025-03-17 20:22:01,906 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 [2025-03-17 20:22:01,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,918 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:01,919 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:22:01,924 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 [2025-03-17 20:22:01,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,927 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) [2025-03-17 20:22:01,928 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 [2025-03-17 20:22:01,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:01,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,948 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 [2025-03-17 20:22:01,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:01,950 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) [2025-03-17 20:22:01,951 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 [2025-03-17 20:22:01,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:22:01,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:01,976 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:22:01,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:01,980 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:01,980 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:01,980 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:01,980 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:01,980 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:22:01,980 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:01,980 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:01,980 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:01,980 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration2_Loop [2025-03-17 20:22:01,980 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:01,980 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:01,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:01,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,022 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:02,022 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:22:02,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,025 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) [2025-03-17 20:22:02,026 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 [2025-03-17 20:22:02,028 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 [2025-03-17 20:22:02,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:02,046 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 [2025-03-17 20:22:02,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,048 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) [2025-03-17 20:22:02,049 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 [2025-03-17 20:22:02,051 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 [2025-03-17 20:22:02,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:22:02,068 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:22:02,068 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:22:02,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,070 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) [2025-03-17 20:22:02,072 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 [2025-03-17 20:22:02,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:22:02,073 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:22:02,073 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:22:02,074 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2025-03-17 20:22:02,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:02,081 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:22:02,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,115 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:02,132 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 [2025-03-17 20:22:02,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 13 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-17 20:22:02,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 13 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 17 states and 26 transitions. Complement of second has 5 states. [2025-03-17 20:22:02,144 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 [2025-03-17 20:22:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-17 20:22:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2025-03-17 20:22:02,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2025-03-17 20:22:02,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2025-03-17 20:22:02,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2025-03-17 20:22:02,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2025-03-17 20:22:02,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:02,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 19 transitions. [2025-03-17 20:22:02,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-17 20:22:02,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-03-17 20:22:02,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2025-03-17 20:22:02,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:22:02,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2025-03-17 20:22:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2025-03-17 20:22:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 20:22:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) [2025-03-17 20:22:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2025-03-17 20:22:02,147 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2025-03-17 20:22:02,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 20:22:02,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 20:22:02,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 20:22:02,149 INFO L87 Difference]: Start difference. First operand 13 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-03-17 20:22:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 20:22:02,155 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2025-03-17 20:22:02,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2025-03-17 20:22:02,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:02,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2025-03-17 20:22:02,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-17 20:22:02,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-03-17 20:22:02,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2025-03-17 20:22:02,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:22:02,156 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2025-03-17 20:22:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2025-03-17 20:22:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2025-03-17 20:22:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2025-03-17 20:22:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2025-03-17 20:22:02,157 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2025-03-17 20:22:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 20:22:02,157 INFO L432 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2025-03-17 20:22:02,158 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 20:22:02,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2025-03-17 20:22:02,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 20:22:02,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:22:02,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:22:02,158 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1] [2025-03-17 20:22:02,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 20:22:02,158 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_#t~post3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0;main_~y~0#1 := 0;" "assume main_~x~0#1 < 50;main_#t~post1#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" "assume !(main_~x~0#1 < 50);main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1;" "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" "assume main_~x~0#1 < 50;main_#t~post1#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" "assume !(main_~x~0#1 < 50);main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1;" [2025-03-17 20:22:02,158 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~y~0#1 < 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" "assume !(main_~x~0#1 < 50);main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1;" [2025-03-17 20:22:02,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1707625085, now seen corresponding path program 1 times [2025-03-17 20:22:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:02,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112244032] [2025-03-17 20:22:02,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:02,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:22:02,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:22:02,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 20:22:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 20:22:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112244032] [2025-03-17 20:22:02,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112244032] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 20:22:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394414483] [2025-03-17 20:22:02,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:22:02,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 20:22:02,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,211 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 20:22:02,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 20:22:02,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:22:02,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:22:02,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 20:22:02,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 20:22:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 20:22:02,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394414483] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 20:22:02,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 20:22:02,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 20:22:02,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210107981] [2025-03-17 20:22:02,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 20:22:02,277 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-17 20:22:02,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 2 times [2025-03-17 20:22:02,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:22:02,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384674050] [2025-03-17 20:22:02,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 20:22:02,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:22:02,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,282 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,282 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 20:22:02,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:02,282 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:22:02,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:22:02,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:22:02,308 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:02,308 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:02,308 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:02,308 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:02,308 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:22:02,308 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,308 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:02,308 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:02,308 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration3_Loop [2025-03-17 20:22:02,308 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:02,308 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:02,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,348 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:02,348 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:22:02,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,351 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) [2025-03-17 20:22:02,353 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 [2025-03-17 20:22:02,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:02,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,366 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:02,366 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:22:02,372 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 [2025-03-17 20:22:02,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,375 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) [2025-03-17 20:22:02,377 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 [2025-03-17 20:22:02,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:02,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:02,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,396 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) [2025-03-17 20:22:02,397 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 [2025-03-17 20:22:02,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:22:02,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,438 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:02,438 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=49} Honda state: {ULTIMATE.start_main_~x~0#1=49} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 8, 0] Nus: [1, 1] [2025-03-17 20:22:02,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-17 20:22:02,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,446 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) [2025-03-17 20:22:02,446 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 [2025-03-17 20:22:02,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:02,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,458 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:22:02,458 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:22:02,464 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 [2025-03-17 20:22:02,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,465 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) [2025-03-17 20:22:02,466 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 [2025-03-17 20:22:02,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:22:02,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:02,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,484 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) [2025-03-17 20:22:02,485 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 [2025-03-17 20:22:02,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:22:02,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:22:02,506 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:22:02,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-17 20:22:02,511 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:22:02,511 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:22:02,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:22:02,511 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:22:02,511 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:22:02,511 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,511 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:22:02,511 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:22:02,511 INFO L132 ssoRankerPreferences]: Filename of dumped script: gr2006.i_Iteration3_Loop [2025-03-17 20:22:02,511 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:22:02,511 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:22:02,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:22:02,552 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:22:02,552 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:22:02,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,554 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) [2025-03-17 20:22:02,555 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 [2025-03-17 20:22:02,557 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 [2025-03-17 20:22:02,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,568 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:02,574 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 [2025-03-17 20:22:02,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,576 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) [2025-03-17 20:22:02,577 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 [2025-03-17 20:22:02,578 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 [2025-03-17 20:22:02,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,591 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:02,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:02,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,599 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) [2025-03-17 20:22:02,600 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 [2025-03-17 20:22:02,601 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 [2025-03-17 20:22:02,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,613 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:22:02,618 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 [2025-03-17 20:22:02,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,620 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) [2025-03-17 20:22:02,621 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 [2025-03-17 20:22:02,622 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 [2025-03-17 20:22:02,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:22:02,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:22:02,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:22:02,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:22:02,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:22:02,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:22:02,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:22:02,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:22:02,637 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:22:02,637 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:22:02,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:22:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:22:02,640 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) [2025-03-17 20:22:02,641 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 [2025-03-17 20:22:02,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:22:02,642 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:22:02,642 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:22:02,642 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2025-03-17 20:22:02,648 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 [2025-03-17 20:22:02,649 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:22:02,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:22:02,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:22:02,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,690 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:02,703 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 [2025-03-17 20:22:02,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,721 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 15 states and 20 transitions. Complement of second has 5 states. [2025-03-17 20:22:02,721 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 [2025-03-17 20:22:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2025-03-17 20:22:02,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 2 letters. [2025-03-17 20:22:02,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,722 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 20:22:02,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:22:02,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:22:02,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,748 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:02,760 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 [2025-03-17 20:22:02,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 15 states and 20 transitions. Complement of second has 5 states. [2025-03-17 20:22:02,772 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 [2025-03-17 20:22:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2025-03-17 20:22:02,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 2 letters. [2025-03-17 20:22:02,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,772 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 20:22:02,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:22:02,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:22:02,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:22:02,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 20:22:02,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 20:22:02,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:22:02,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:22:02,802 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:22:02,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:22:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:22:02,813 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 [2025-03-17 20:22:02,813 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 18 states and 24 transitions. Complement of second has 4 states. [2025-03-17 20:22:02,824 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 [2025-03-17 20:22:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 20:22:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2025-03-17 20:22:02,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2025-03-17 20:22:02,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2025-03-17 20:22:02,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 4 letters. [2025-03-17 20:22:02,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:22:02,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2025-03-17 20:22:02,826 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:22:02,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2025-03-17 20:22:02,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 20:22:02,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 20:22:02,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 20:22:02,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 20:22:02,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:22:02,827 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:22:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 20:22:02,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 20:22:02,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 20:22:02,827 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 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) [2025-03-17 20:22:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 20:22:02,827 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:22:02,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 20:22:02,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 20:22:02,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 20:22:02,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 20:22:02,828 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 20:22:02,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 20:22:02,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:22:02,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 20:22:02,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 08:22:02 BoogieIcfgContainer [2025-03-17 20:22:02,834 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 20:22:02,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 20:22:02,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 20:22:02,835 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 20:22:02,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:00" (3/4) ... [2025-03-17 20:22:02,836 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 20:22:02,837 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 20:22:02,837 INFO L158 Benchmark]: Toolchain (without parser) took 2214.56ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 44.1MB in the end (delta: 62.5MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2025-03-17 20:22:02,837 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 122.70ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.0MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 913.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: Boogie Preprocessor took 14.05ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.1MB in the end (delta: 967.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: IcfgBuilder took 156.02ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 83.8MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: BuchiAutomizer took 1896.95ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 44.2MB in the end (delta: 39.7MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2025-03-17 20:22:02,838 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:22:02,839 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 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 122.70ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.0MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 913.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.05ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.1MB in the end (delta: 967.6kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 156.02ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 83.8MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1896.95ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 44.2MB in the end (delta: 39.7MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 41.6kB). There was no memory consumed. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * x) + 99) and consists of 5 locations. One deterministic module has affine ranking function (((long long) 2 * y) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) 2 * y) + 1) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 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, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 20 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 20:22:02,846 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 [2025-03-17 20:22:03,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:03,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-03-17 20:22:03,452 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 Result: TRUE