./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.15.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d693c7724c0ebfe8b27134a216c04efa168e4ab88e5a919a5ed127ebb533f08a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:21:27,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:21:27,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:21:27,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:21:27,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:21:27,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:21:27,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:21:28,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:21:28,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:21:28,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:21:28,001 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:21:28,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:21:28,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:21:28,002 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:21:28,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:21:28,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:21:28,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:21:28,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:21:28,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:21:28,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:21:28,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:21:28,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:21:28,005 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:21:28,005 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-jdk21/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 -> d693c7724c0ebfe8b27134a216c04efa168e4ab88e5a919a5ed127ebb533f08a [2025-02-08 14:21:28,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:21:28,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:21:28,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:21:28,336 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:21:28,336 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:21:28,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.15.c [2025-02-08 14:21:29,582 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03913bc4c/8c9e1b87f61c4d878c3cd315601b3f8b/FLAG0d129d5ab [2025-02-08 14:21:29,819 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:21:29,819 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.15.c [2025-02-08 14:21:29,838 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03913bc4c/8c9e1b87f61c4d878c3cd315601b3f8b/FLAG0d129d5ab [2025-02-08 14:21:30,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03913bc4c/8c9e1b87f61c4d878c3cd315601b3f8b [2025-02-08 14:21:30,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:21:30,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:21:30,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:30,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:21:30,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:21:30,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636da10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30, skipping insertion in model container [2025-02-08 14:21:30,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:21:30,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:30,321 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:21:30,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:30,346 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:21:30,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30 WrapperNode [2025-02-08 14:21:30,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:30,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:30,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:21:30,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:21:30,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,371 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2025-02-08 14:21:30,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:30,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:21:30,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:21:30,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:21:30,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,386 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:21:30,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,388 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:21:30,393 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:21:30,395 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:21:30,395 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:21:30,396 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (1/1) ... [2025-02-08 14:21:30,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:30,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-08 14:21:30,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:21:30,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:21:30,509 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:21:30,511 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:21:30,570 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-02-08 14:21:30,570 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:21:30,578 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:21:30,578 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:21:30,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30 BoogieIcfgContainer [2025-02-08 14:21:30,579 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:21:30,579 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:21:30,580 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:21:30,584 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:21:30,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,585 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:21:30" (1/3) ... [2025-02-08 14:21:30,585 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7ac072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:30, skipping insertion in model container [2025-02-08 14:21:30,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,585 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:30" (2/3) ... [2025-02-08 14:21:30,586 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7ac072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:30, skipping insertion in model container [2025-02-08 14:21:30,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,586 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30" (3/3) ... [2025-02-08 14:21:30,586 INFO L363 chiAutomizerObserver]: Analyzing ICFG b.15.c [2025-02-08 14:21:30,622 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:21:30,623 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:21:30,623 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:21:30,623 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:21:30,623 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:21:30,624 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:21:30,624 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:21:30,624 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:21:30,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:30,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:30,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:30,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:30,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:30,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:30,645 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:21:30,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:30,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:30,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:30,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:30,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:30,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:30,652 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" [2025-02-08 14:21:30,653 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1;" "assume !(main_~y~0#1 > main_~z~0#1);" [2025-02-08 14:21:30,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-08 14:21:30,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408687141] [2025-02-08 14:21:30,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,723 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1056, now seen corresponding path program 1 times [2025-02-08 14:21:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423897025] [2025-02-08 14:21:30,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:30,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:30,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:30,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:21:30,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423897025] [2025-02-08 14:21:30,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423897025] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:21:30,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:21:30,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:21:30,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664913675] [2025-02-08 14:21:30,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:21:30,809 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:21:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:21:30,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:21:30,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:21:30,835 INFO L87 Difference]: Start difference. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:21:30,849 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2025-02-08 14:21:30,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2025-02-08 14:21:30,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:30,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 4 states and 5 transitions. [2025-02-08 14:21:30,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-08 14:21:30,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-08 14:21:30,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2025-02-08 14:21:30,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:30,856 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4 states and 5 transitions. [2025-02-08 14:21:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2025-02-08 14:21:30,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2025-02-08 14:21:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2025-02-08 14:21:30,871 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4 states and 5 transitions. [2025-02-08 14:21:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:21:30,874 INFO L432 stractBuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2025-02-08 14:21:30,875 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:21:30,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2025-02-08 14:21:30,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:30,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:30,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:30,876 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:30,876 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:21:30,876 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" [2025-02-08 14:21:30,876 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1;" "assume main_~y~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1;" "assume !(main_~y~0#1 > main_~z~0#1);" [2025-02-08 14:21:30,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 2 times [2025-02-08 14:21:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957397400] [2025-02-08 14:21:30,877 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,882 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,882 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:21:30,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,882 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 32707, now seen corresponding path program 1 times [2025-02-08 14:21:30,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402493509] [2025-02-08 14:21:30,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:30,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:30,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,894 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:30,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:30,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1045601, now seen corresponding path program 1 times [2025-02-08 14:21:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589739878] [2025-02-08 14:21:30,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:30,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:30,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,909 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:30,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:30,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,009 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:31,010 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:31,010 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:31,010 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:31,010 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:31,010 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,011 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:31,011 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:31,011 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2025-02-08 14:21:31,011 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:31,011 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:31,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,146 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:31,146 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:31,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-08 14:21:31,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:31,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-08 14:21:31,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:31,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,337 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:31,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-08 14:21:31,343 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:31,343 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:31,343 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:31,343 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:31,344 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:31,344 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,344 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:31,344 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:31,344 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2025-02-08 14:21:31,344 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:31,344 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:31,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:31,443 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:31,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-08 14:21:31,450 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 [2025-02-08 14:21:31,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:31,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:31,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:31,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:31,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:31,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:31,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:31,471 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:31,477 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:31,479 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:31,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-08 14:21:31,485 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:31,485 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:31,485 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:31,485 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2025-02-08 14:21:31,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-08 14:21:31,494 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:31,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:31,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:31,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,533 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:31,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:31,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:31,613 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:21:31,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,663 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 6 states. [2025-02-08 14:21:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2025-02-08 14:21:31,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2025-02-08 14:21:31,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-08 14:21:31,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2025-02-08 14:21:31,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2025-02-08 14:21:31,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:31,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2025-02-08 14:21:31,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2025-02-08 14:21:31,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-08 14:21:31,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2025-02-08 14:21:31,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:31,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-02-08 14:21:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2025-02-08 14:21:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2025-02-08 14:21:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2025-02-08 14:21:31,681 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:21:31,681 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:21:31,681 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:21:31,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2025-02-08 14:21:31,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:31,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:31,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:31,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2025-02-08 14:21:31,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:21:31,682 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1;" "assume main_~y~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~y~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1;" [2025-02-08 14:21:31,682 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1;" [2025-02-08 14:21:31,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1045600, now seen corresponding path program 1 times [2025-02-08 14:21:31,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641817668] [2025-02-08 14:21:31,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:31,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:31,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,699 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:31,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:31,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2025-02-08 14:21:31,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959097009] [2025-02-08 14:21:31,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:31,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:31,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,719 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:31,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:31,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,723 INFO L85 PathProgramCache]: Analyzing trace with hash 32413601, now seen corresponding path program 2 times [2025-02-08 14:21:31,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118781178] [2025-02-08 14:21:31,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,734 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 2 equivalence classes. [2025-02-08 14:21:31,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:31,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:21:31,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,741 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:21:31,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:31,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:31,800 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:31,800 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:31,800 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:31,800 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:31,800 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:31,800 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,800 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:31,800 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:31,800 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration3_Loop [2025-02-08 14:21:31,801 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:31,801 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:31,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,871 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:31,871 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:31,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,874 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-08 14:21:31,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,900 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:31,900 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:31,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-08 14:21:31,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-08 14:21:31,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,937 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:31,937 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:31,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-08 14:21:31,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-08 14:21:31,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-08 14:21:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:31,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-08 14:21:31,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:31,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:32,064 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:32,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:32,070 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:32,070 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:32,070 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:32,070 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:32,070 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:32,070 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:32,070 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:32,070 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:32,070 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration3_Loop [2025-02-08 14:21:32,070 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:32,070 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:32,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:32,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:32,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:32,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:32,140 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:32,140 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:32,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:32,143 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:32,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-08 14:21:32,147 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 [2025-02-08 14:21:32,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:32,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:32,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:32,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:32,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:32,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:32,171 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:32,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-08 14:21:32,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:32,183 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:32,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-08 14:21:32,188 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 [2025-02-08 14:21:32,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:32,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:32,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:32,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:32,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:32,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:32,208 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:32,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-08 14:21:32,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:32,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:32,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:32,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-08 14:21:32,225 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 [2025-02-08 14:21:32,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:32,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:32,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:32,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:32,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:32,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:32,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:32,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:32,252 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:32,253 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:32,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:32,256 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:21:32,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:32,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:32,261 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:32,261 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2025-02-08 14:21:32,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-08 14:21:32,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-08 14:21:32,270 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:32,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:32,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:32,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:32,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:32,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:32,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:32,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:32,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:32,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:32,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:32,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:32,316 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:32,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:32,317 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:21:32,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:32,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 4 states. [2025-02-08 14:21:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2025-02-08 14:21:32,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2025-02-08 14:21:32,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:32,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2025-02-08 14:21:32,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:32,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:21:32,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:32,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2025-02-08 14:21:32,333 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:32,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:21:32,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:21:32,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:32,333 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:21:32,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:21:32,333 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:32,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:21:32,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:21:32 BoogieIcfgContainer [2025-02-08 14:21:32,341 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:21:32,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:21:32,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:21:32,341 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:21:32,342 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30" (3/4) ... [2025-02-08 14:21:32,344 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:21:32,344 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:21:32,345 INFO L158 Benchmark]: Toolchain (without parser) took 2177.47ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 91.4MB in the end (delta: 23.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2025-02-08 14:21:32,345 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:32,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.29ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 104.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:32,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.42ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.6MB in the end (delta: 915.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:32,346 INFO L158 Benchmark]: Boogie Preprocessor took 19.59ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.7MB in the end (delta: 938.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:32,346 INFO L158 Benchmark]: IcfgBuilder took 185.14ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 93.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:32,346 INFO L158 Benchmark]: BuchiAutomizer took 1761.12ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2025-02-08 14:21:32,347 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:32,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.29ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 104.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.42ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.6MB in the end (delta: 915.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.59ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.7MB in the end (delta: 938.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 185.14ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 93.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1761.12ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 27.1kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * z) + x) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * z) + y) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax161 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp93 dnf100 smp100 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:21:32,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-08 14:21:32,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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