./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/recHanoi03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/recHanoi03-2.c -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 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:49:16,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:49:16,932 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:49:16,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:49:16,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:49:16,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:49:16,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:49:16,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:49:16,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:49:16,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:49:16,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:49:16,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:49:16,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:49:16,971 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:49:16,972 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:49:16,972 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:49:16,974 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:49:16,974 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:49:16,975 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:49:16,975 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:49:16,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:49:16,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:49:16,976 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:49:16,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:49:16,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:49:16,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:49:16,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:49:16,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:49:16,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:49:16,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:49:16,978 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:49:16,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:49:16,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:49:16,983 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:49:16,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:49:16,984 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:49:16,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:49:16,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:49:16,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:49:16,986 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:49:16,986 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 [2024-11-17 08:49:17,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:49:17,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:49:17,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:49:17,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:49:17,273 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:49:17,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi03-2.c [2024-11-17 08:49:18,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:49:18,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:49:18,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c [2024-11-17 08:49:19,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a9c24ec/fb783b235f144fa192341be959d8fa0e/FLAG596e21bb1 [2024-11-17 08:49:19,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a9c24ec/fb783b235f144fa192341be959d8fa0e [2024-11-17 08:49:19,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:49:19,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:49:19,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:49:19,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:49:19,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:49:19,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a164c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19, skipping insertion in model container [2024-11-17 08:49:19,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:49:19,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:49:19,564 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:49:19,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:49:19,590 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:49:19,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19 WrapperNode [2024-11-17 08:49:19,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:49:19,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:49:19,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:49:19,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:49:19,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,619 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-11-17 08:49:19,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:49:19,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:49:19,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:49:19,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:49:19,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,639 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]. [2024-11-17 08:49:19,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,642 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:49:19,647 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:49:19,647 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:49:19,647 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:49:19,648 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (1/1) ... [2024-11-17 08:49:19,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:19,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:19,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:19,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:49:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:49:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-11-17 08:49:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-11-17 08:49:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:49:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:49:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:49:19,807 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:49:19,810 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:49:19,879 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L22: havoc #t~ret4; [2024-11-17 08:49:19,932 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-17 08:49:19,935 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:49:19,947 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:49:19,947 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:49:19,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:19 BoogieIcfgContainer [2024-11-17 08:49:19,949 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:49:19,950 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:49:19,950 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:49:19,955 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:49:19,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:19,956 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:49:19" (1/3) ... [2024-11-17 08:49:19,957 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28ab1384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:49:19, skipping insertion in model container [2024-11-17 08:49:19,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:19,958 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:19" (2/3) ... [2024-11-17 08:49:19,959 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28ab1384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:49:19, skipping insertion in model container [2024-11-17 08:49:19,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:19,960 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:19" (3/3) ... [2024-11-17 08:49:19,961 INFO L332 chiAutomizerObserver]: Analyzing ICFG recHanoi03-2.c [2024-11-17 08:49:20,020 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:49:20,020 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:49:20,021 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:49:20,021 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:49:20,021 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:49:20,021 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:49:20,021 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:49:20,021 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:49:20,027 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) [2024-11-17 08:49:20,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:49:20,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:20,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:20,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:49:20,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:49:20,050 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:49:20,050 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) [2024-11-17 08:49:20,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:49:20,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:20,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:20,054 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:49:20,054 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:49:20,059 INFO L745 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue 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); 11#ULTIMATE.init_returnLabel#1true assume true;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; 14#L28true assume !(main_~n~0#1 < 1 || main_~n~0#1 > 31); 16#L31-1true call main_#t~ret6#1 := hanoi(main_~n~0#1);< 13#hanoiENTRYtrue [2024-11-17 08:49:20,060 INFO L747 eck$LassoCheckResult]: Loop: 13#hanoiENTRYtrue ~n := #in~n; 12#L19true assume !(1 == ~n); 5#L22-2true call #t~ret4 := hanoi(~n - 1);< 13#hanoiENTRYtrue [2024-11-17 08:49:20,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1507398, now seen corresponding path program 1 times [2024-11-17 08:49:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:20,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408324961] [2024-11-17 08:49:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:20,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:20,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:20,200 INFO L85 PathProgramCache]: Analyzing trace with hash 34741, now seen corresponding path program 1 times [2024-11-17 08:49:20,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:20,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177140395] [2024-11-17 08:49:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:20,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:20,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:20,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1957225808, now seen corresponding path program 1 times [2024-11-17 08:49:20,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:20,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449607005] [2024-11-17 08:49:20,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:20,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:20,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:20,362 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:20,362 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:20,362 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:20,362 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:20,363 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:20,363 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,363 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:20,363 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:20,363 INFO L132 ssoRankerPreferences]: Filename of dumped script: recHanoi03-2.c_Iteration1_Loop [2024-11-17 08:49:20,363 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:20,363 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:20,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,467 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:20,467 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:20,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:20,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:20,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:49:20,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:20,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:20,497 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:20,498 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#res=0} Honda state: {hanoi_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:20,512 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 [2024-11-17 08:49:20,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:20,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:20,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:49:20,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:20,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:20,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:20,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:20,540 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:20,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:49:20,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:20,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:20,572 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:20,572 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#in~n=-8} Honda state: {hanoi_#in~n=-8} Generalized eigenvectors: [{hanoi_#in~n=0}, {hanoi_#in~n=-1}, {hanoi_#in~n=0}] Lambdas: [1, 1, 11] Nus: [0, 1] [2024-11-17 08:49:20,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:20,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:20,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:20,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:49:20,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:20,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:20,606 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:20,607 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_#t~ret4=0} Honda state: {hanoi_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:20,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:20,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:20,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:20,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:49:20,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:20,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:20,636 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:20,636 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {hanoi_~n=0} Honda state: {hanoi_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:20,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-17 08:49:20,957 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:20,958 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:20,958 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:20,958 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:20,958 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:20,958 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:20,959 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:20,959 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:20,959 INFO L132 ssoRankerPreferences]: Filename of dumped script: recHanoi03-2.c_Iteration1_Lasso [2024-11-17 08:49:20,959 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:20,959 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:20,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:20,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:21,206 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:21,211 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:21,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:21,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:21,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:21,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:49:21,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:49:21,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:21,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:21,231 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:49:21,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:21,241 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-17 08:49:21,241 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-17 08:49:21,255 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:21,281 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-11-17 08:49:21,281 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-11-17 08:49:21,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:21,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:21,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:21,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:49:21,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:21,308 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-17 08:49:21,309 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:21,310 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] [2024-11-17 08:49:21,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:21,334 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-11-17 08:49:21,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:21,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:49:21,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:21,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 08:49:21,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:21,508 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 [2024-11-17 08:49:21,514 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) [2024-11-17 08:49:21,645 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. [2024-11-17 08:49:21,649 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 [2024-11-17 08:49:21,654 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) [2024-11-17 08:49:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2024-11-17 08:49:21,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-17 08:49:21,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:21,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-17 08:49:21,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:21,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-17 08:49:21,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:21,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2024-11-17 08:49:21,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:49:21,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2024-11-17 08:49:21,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:49:21,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:49:21,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:49:21,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:49:21,668 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:21,669 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:21,669 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:21,669 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:49:21,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:49:21,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:49:21,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:49:21,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:49:21 BoogieIcfgContainer [2024-11-17 08:49:21,677 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:49:21,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:49:21,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:49:21,678 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:49:21,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:19" (3/4) ... [2024-11-17 08:49:21,682 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:49:21,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:49:21,684 INFO L158 Benchmark]: Toolchain (without parser) took 2312.68ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 92.9MB in the end (delta: 32.1MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,685 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:49:21,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.90ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 113.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.57ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 111.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:49:21,686 INFO L158 Benchmark]: Boogie Preprocessor took 25.99ms. Allocated memory is still 165.7MB. Free memory was 111.4MB in the beginning and 110.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,687 INFO L158 Benchmark]: IcfgBuilder took 302.68ms. Allocated memory is still 165.7MB. Free memory was 110.3MB in the beginning and 99.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,688 INFO L158 Benchmark]: BuchiAutomizer took 1727.12ms. Allocated memory is still 165.7MB. Free memory was 99.8MB in the beginning and 93.8MB in the end (delta: 6.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,688 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 165.7MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 854.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:49:21,691 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.90ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 113.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.57ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 111.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.99ms. Allocated memory is still 165.7MB. Free memory was 111.4MB in the beginning and 110.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 302.68ms. Allocated memory is still 165.7MB. Free memory was 110.3MB in the beginning and 99.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1727.12ms. Allocated memory is still 165.7MB. Free memory was 99.8MB in the beginning and 93.8MB in the end (delta: 6.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 165.7MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 854.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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: 97ms 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! [2024-11-17 08:49:21,727 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 [2024-11-17 08:49:21,923 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