./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/recHanoi02-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 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/termination-numeric/recHanoi02-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:35:41,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:35:41,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-04 15:35:41,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:35:41,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:35:41,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:35:41,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:35:41,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:35:41,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:35:41,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:35:41,265 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:35:41,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:35:41,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:35:41,266 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:35:41,266 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:35:41,266 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:35:41,266 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:35:41,266 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:35:41,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:35:41,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:35:41,268 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:35:41,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:35:41,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:35:41,268 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:35:41,268 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f [2025-03-04 15:35:41,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:35:41,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:35:41,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:35:41,519 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:35:41,520 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:35:41,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2025-03-04 15:35:42,717 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e51627e/23bf3526ed564d54a228f94322d379fc/FLAG72ff2699a [2025-03-04 15:35:42,945 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:35:42,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2025-03-04 15:35:42,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e51627e/23bf3526ed564d54a228f94322d379fc/FLAG72ff2699a [2025-03-04 15:35:42,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27e51627e/23bf3526ed564d54a228f94322d379fc [2025-03-04 15:35:42,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:35:42,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:35:42,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:35:42,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:35:42,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:35:42,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:35:42" (1/1) ... [2025-03-04 15:35:42,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa4d439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:42, skipping insertion in model container [2025-03-04 15:35:42,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:35:42" (1/1) ... [2025-03-04 15:35:42,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:35:43,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:35:43,103 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:35:43,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:35:43,121 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:35:43,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43 WrapperNode [2025-03-04 15:35:43,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:35:43,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:35:43,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:35:43,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:35:43,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,139 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2025-03-04 15:35:43,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:35:43,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:35:43,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:35:43,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:35:43,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,152 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]. [2025-03-04 15:35:43,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:35:43,161 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:35:43,161 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:35:43,161 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:35:43,161 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (1/1) ... [2025-03-04 15:35:43,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,186 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) [2025-03-04 15:35:43,189 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 [2025-03-04 15:35:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:35:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2025-03-04 15:35:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2025-03-04 15:35:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:35:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:35:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:35:43,240 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:35:43,241 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:35:43,274 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L22: havoc #t~ret4; [2025-03-04 15:35:43,315 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-04 15:35:43,315 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:35:43,321 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:35:43,324 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:35:43,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:35:43 BoogieIcfgContainer [2025-03-04 15:35:43,325 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:35:43,325 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:35:43,325 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:35:43,329 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:35:43,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:35:43,330 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:35:42" (1/3) ... [2025-03-04 15:35:43,331 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336a78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:35:43, skipping insertion in model container [2025-03-04 15:35:43,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:35:43,332 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:35:43" (2/3) ... [2025-03-04 15:35:43,332 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336a78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:35:43, skipping insertion in model container [2025-03-04 15:35:43,332 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:35:43,332 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:35:43" (3/3) ... [2025-03-04 15:35:43,333 INFO L363 chiAutomizerObserver]: Analyzing ICFG recHanoi02-1.c [2025-03-04 15:35:43,368 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:35:43,368 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:35:43,368 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:35:43,369 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:35:43,369 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:35:43,369 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:35:43,369 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:35:43,369 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:35:43,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 15:35:43,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:35:43,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:35:43,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:35:43,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-04 15:35:43,386 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:35:43,387 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:35:43,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 15:35:43,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:35:43,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:35:43,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:35:43,388 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-04 15:35:43,388 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:35:43,395 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(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet5#1;main_~n~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume !(main_~n~0#1 < 1 || main_~n~0#1 > 31);" "call main_#t~ret6#1 := hanoi(main_~n~0#1);"< [2025-03-04 15:35:43,395 INFO L754 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(1 == ~n);" "call #t~ret4 := hanoi(~n - 1);"< [2025-03-04 15:35:43,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:35:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1507398, now seen corresponding path program 1 times [2025-03-04 15:35:43,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:35:43,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665815140] [2025-03-04 15:35:43,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:35:43,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:35:43,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:35:43,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:35:43,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,466 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:35:43,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:35:43,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:35:43,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:35:43,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:35:43,483 INFO L85 PathProgramCache]: Analyzing trace with hash 34741, now seen corresponding path program 1 times [2025-03-04 15:35:43,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:35:43,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507133345] [2025-03-04 15:35:43,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:35:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:35:43,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:35:43,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:35:43,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,489 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:35:43,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:35:43,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:35:43,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:35:43,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:35:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1957225808, now seen corresponding path program 1 times [2025-03-04 15:35:43,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:35:43,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580042058] [2025-03-04 15:35:43,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:35:43,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:35:43,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:35:43,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:35:43,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,509 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:35:43,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:35:43,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:35:43,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:43,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:35:43,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:35:43,593 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:35:43,593 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:35:43,593 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:35:43,594 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:35:43,594 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:35:43,594 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,594 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:35:43,594 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:35:43,594 INFO L132 ssoRankerPreferences]: Filename of dumped script: recHanoi02-1.c_Iteration1_Loop [2025-03-04 15:35:43,594 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:35:43,594 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:35:43,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,668 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:35:43,669 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:35:43,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,673 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) [2025-03-04 15:35:43,674 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 [2025-03-04 15:35:43,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:35:43,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:35:43,688 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:35:43,689 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#res=0} Honda state: {hanoi_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 15:35:43,694 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 [2025-03-04 15:35:43,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,697 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) [2025-03-04 15:35:43,700 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 [2025-03-04 15:35:43,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:35:43,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:35:43,717 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 [2025-03-04 15:35:43,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,719 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) [2025-03-04 15:35:43,720 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 [2025-03-04 15:35:43,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:35:43,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:35:43,746 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:35:43,746 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#in~n=-2} Honda state: {hanoi_#in~n=-2} Generalized eigenvectors: [{hanoi_#in~n=0}, {hanoi_#in~n=0}, {hanoi_#in~n=-1}] Lambdas: [1, 0, 1] Nus: [0, 0] [2025-03-04 15:35:43,751 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 [2025-03-04 15:35:43,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,753 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) [2025-03-04 15:35:43,754 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 [2025-03-04 15:35:43,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:35:43,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:35:43,769 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:35:43,770 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#t~ret4=0} Honda state: {hanoi_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 15:35:43,775 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 [2025-03-04 15:35:43,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:43,778 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) [2025-03-04 15:35:43,778 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 [2025-03-04 15:35:43,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:35:43,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:35:43,792 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:35:43,792 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_~n=0} Honda state: {hanoi_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 15:35:43,798 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 [2025-03-04 15:35:43,984 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:35:43,984 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:35:43,984 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:35:43,984 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:35:43,984 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:35:43,984 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:43,984 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:35:43,985 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:35:43,985 INFO L132 ssoRankerPreferences]: Filename of dumped script: recHanoi02-1.c_Iteration1_Lasso [2025-03-04 15:35:43,985 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:35:43,985 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:35:43,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:43,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:35:44,162 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:35:44,165 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:35:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:44,168 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) [2025-03-04 15:35:44,170 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 [2025-03-04 15:35:44,171 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 [2025-03-04 15:35:44,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:35:44,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:35:44,183 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-04 15:35:44,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:35:44,192 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-03-04 15:35:44,192 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-03-04 15:35:44,203 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:35:44,224 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2025-03-04 15:35:44,226 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2025-03-04 15:35:44,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:35:44,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:35:44,231 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) [2025-03-04 15:35:44,232 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 [2025-03-04 15:35:44,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:35:44,248 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2025-03-04 15:35:44,249 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:35:44,249 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(hanoi_#in~n) = 1*hanoi_#in~n Supporting invariants [2*hanoi_#in~n - 1 >= 0] [2025-03-04 15:35:44,256 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 [2025-03-04 15:35:44,263 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2025-03-04 15:35:44,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:35:44,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:35:44,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:35:44,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:44,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:35:44,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:35:44,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:35:44,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:35:44,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:35:44,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:35:44,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:35:44,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 15:35:44,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:35:44,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 15:35:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:35:44,412 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2025-03-04 15:35:44,413 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:35:44,519 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 40 transitions. Complement of second has 17 states. [2025-03-04 15:35:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2025-03-04 15:35:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:35:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2025-03-04 15:35:44,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2025-03-04 15:35:44,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:35:44,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-04 15:35:44,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:35:44,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2025-03-04 15:35:44,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:35:44,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2025-03-04 15:35:44,533 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:35:44,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2025-03-04 15:35:44,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:35:44,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:35:44,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:35:44,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:35:44,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:35:44,535 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:35:44,535 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:35:44,535 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:35:44,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:35:44,536 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:35:44,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:35:44,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:35:44 BoogieIcfgContainer [2025-03-04 15:35:44,541 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:35:44,541 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:35:44,541 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:35:44,541 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:35:44,542 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:35:43" (3/4) ... [2025-03-04 15:35:44,543 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:35:44,544 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:35:44,544 INFO L158 Benchmark]: Toolchain (without parser) took 1564.45ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 104.9MB in the end (delta: 16.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2025-03-04 15:35:44,544 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:35:44,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.13ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 111.7MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:35:44,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.41ms. Allocated memory is still 167.8MB. Free memory was 111.7MB in the beginning and 110.8MB in the end (delta: 876.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:35:44,545 INFO L158 Benchmark]: Boogie Preprocessor took 18.97ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:35:44,545 INFO L158 Benchmark]: IcfgBuilder took 164.29ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 100.0MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 15:35:44,545 INFO L158 Benchmark]: BuchiAutomizer took 1215.24ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 105.0MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:35:44,545 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:35:44,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.13ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 111.7MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.41ms. Allocated memory is still 167.8MB. Free memory was 111.7MB in the beginning and 110.8MB in the end (delta: 876.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.97ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 164.29ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 100.0MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1215.24ms. Allocated memory is still 167.8MB. Free memory was 100.0MB in the beginning and 105.0MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 167.8MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 50.8kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 9 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital40 mio100 ax100 hnf100 lsp65 ukn88 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf95 smp100 dnf144 smp100 tf103 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 83ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:35:44,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE