./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Nested-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/Nested-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 689bfa137c7ec291c9da872b4c0ae907dc49890ce91238f2d64af583a7257b4a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:52:45,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:52:45,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:52:45,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:52:45,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:52:45,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:52:45,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:52:45,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:52:45,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:52:45,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:52:45,121 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:52:45,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:52:45,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:52:45,122 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:52:45,122 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:52:45,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:52:45,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:52:45,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:52:45,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:52:45,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:52:45,125 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:52:45,125 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 689bfa137c7ec291c9da872b4c0ae907dc49890ce91238f2d64af583a7257b4a [2025-03-17 19:52:45,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:52:45,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:52:45,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:52:45,351 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:52:45,352 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:52:45,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Nested-2.c [2025-03-17 19:52:46,456 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1113792/036f8dad497543c781b8b31ce6e7961a/FLAGf49eb4afc [2025-03-17 19:52:46,675 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:52:46,680 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Nested-2.c [2025-03-17 19:52:46,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1113792/036f8dad497543c781b8b31ce6e7961a/FLAGf49eb4afc [2025-03-17 19:52:47,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1113792/036f8dad497543c781b8b31ce6e7961a [2025-03-17 19:52:47,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:52:47,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:52:47,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:47,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:52:47,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:52:47,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d79d6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47, skipping insertion in model container [2025-03-17 19:52:47,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:52:47,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:47,154 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:52:47,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:47,171 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:52:47,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47 WrapperNode [2025-03-17 19:52:47,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:47,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:47,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:52:47,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:52:47,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,189 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2025-03-17 19:52:47,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:47,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:52:47,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:52:47,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:52:47,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,200 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 19:52:47,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:52:47,204 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:52:47,205 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:52:47,205 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:52:47,206 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (1/1) ... [2025-03-17 19:52:47,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-17 19:52:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:52:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:52:47,293 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:52:47,295 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:52:47,353 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-03-17 19:52:47,354 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:52:47,360 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:52:47,360 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:52:47,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:47 BoogieIcfgContainer [2025-03-17 19:52:47,361 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:52:47,361 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:52:47,361 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:52:47,365 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:52:47,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:47,366 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:52:47" (1/3) ... [2025-03-17 19:52:47,368 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a3bc09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:47, skipping insertion in model container [2025-03-17 19:52:47,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:47,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:47" (2/3) ... [2025-03-17 19:52:47,368 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a3bc09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:47, skipping insertion in model container [2025-03-17 19:52:47,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:47,369 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:47" (3/3) ... [2025-03-17 19:52:47,369 INFO L363 chiAutomizerObserver]: Analyzing ICFG Nested-2.c [2025-03-17 19:52:47,412 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:52:47,413 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:52:47,414 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:52:47,414 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:52:47,414 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:52:47,414 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:52:47,415 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:52:47,415 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:52:47,418 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) [2025-03-17 19:52:47,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:52:47,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:47,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:47,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:52:47,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:52:47,432 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:52:47,432 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) [2025-03-17 19:52:47,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:52:47,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:47,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:47,433 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:52:47,433 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:52:47,437 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 3;" [2025-03-17 19:52:47,438 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 10;" "assume !(main_~j~0#1 < 12);main_~i~0#1 := 1 + main_~i~0#1;" [2025-03-17 19:52:47,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:47,443 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-03-17 19:52:47,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:47,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223952458] [2025-03-17 19:52:47,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:47,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:47,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:47,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:47,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:47,503 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:47,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:47,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:47,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:47,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:47,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1055, now seen corresponding path program 1 times [2025-03-17 19:52:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:47,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075128648] [2025-03-17 19:52:47,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:47,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:47,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:47,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:47,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:47,525 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:47,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:47,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:47,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:47,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:47,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash 33729, now seen corresponding path program 1 times [2025-03-17 19:52:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293240193] [2025-03-17 19:52:47,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:47,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:52:47,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:52:47,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:47,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:52:47,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293240193] [2025-03-17 19:52:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293240193] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:52:47,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:52:47,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:52:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8770700] [2025-03-17 19:52:47,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:52:47,624 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:47,624 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:47,625 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:47,625 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:47,625 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:47,625 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,625 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:47,625 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:47,626 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nested-2.c_Iteration1_Loop [2025-03-17 19:52:47,626 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:47,626 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:47,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,702 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:47,702 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:47,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-17 19:52:47,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:47,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:47,733 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:47,733 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:47,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-17 19:52:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-17 19:52:47,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:47,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:47,760 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:47,760 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:47,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-17 19:52:47,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-17 19:52:47,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:47,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:47,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-17 19:52:47,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-17 19:52:47,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:47,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:47,813 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:47,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-17 19:52:47,818 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:47,818 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:47,818 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:47,818 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:47,818 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:47,818 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,818 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:47,818 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:47,818 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nested-2.c_Iteration1_Loop [2025-03-17 19:52:47,818 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:47,818 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:47,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:47,875 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:47,878 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:47,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-17 19:52:47,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:47,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:47,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:47,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:47,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:47,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:47,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:47,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:47,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:47,908 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:52:47,911 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:52:47,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:47,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:47,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-17 19:52:47,916 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:47,916 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:47,917 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:47,917 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2025-03-17 19:52:47,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:47,925 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:47,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:47,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:47,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:47,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:47,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:52:47,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:47,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:47,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:47,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:47,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:47,962 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:52:47,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:47,998 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-17 19:52:48,000 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. 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, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. 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, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 12 transitions. Complement of second has 5 states. [2025-03-17 19:52:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:48,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2025-03-17 19:52:48,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2025-03-17 19:52:48,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2025-03-17 19:52:48,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 1 letters. Loop has 4 letters. [2025-03-17 19:52:48,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 12 transitions. [2025-03-17 19:52:48,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:48,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 6 states and 9 transitions. [2025-03-17 19:52:48,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2025-03-17 19:52:48,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-03-17 19:52:48,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2025-03-17 19:52:48,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:48,045 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-03-17 19:52:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2025-03-17 19:52:48,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2025-03-17 19:52:48,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2025-03-17 19:52:48,060 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 8 transitions. [2025-03-17 19:52:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:52:48,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:52:48,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:52:48,064 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:52:48,071 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2025-03-17 19:52:48,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2025-03-17 19:52:48,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:48,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2025-03-17 19:52:48,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-17 19:52:48,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-03-17 19:52:48,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2025-03-17 19:52:48,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:48,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-03-17 19:52:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2025-03-17 19:52:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2025-03-17 19:52:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2025-03-17 19:52:48,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-03-17 19:52:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:52:48,075 INFO L432 stractBuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-03-17 19:52:48,075 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:52:48,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2025-03-17 19:52:48,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:48,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:48,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:48,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 19:52:48,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-17 19:52:48,076 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 3;" "assume main_~i~0#1 < 10;" [2025-03-17 19:52:48,076 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < 12;main_~j~0#1 := main_~j~0#1 - 1;main_~j~0#1 := 2 + main_~j~0#1;" [2025-03-17 19:52:48,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1088, now seen corresponding path program 1 times [2025-03-17 19:52:48,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:48,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025930219] [2025-03-17 19:52:48,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:48,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:48,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:48,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:48,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,084 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:48,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:48,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:48,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:48,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash 33, now seen corresponding path program 1 times [2025-03-17 19:52:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:48,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863491112] [2025-03-17 19:52:48,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:48,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:48,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:48,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,092 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:48,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:48,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:48,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:48,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash 33730, now seen corresponding path program 1 times [2025-03-17 19:52:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:48,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762785004] [2025-03-17 19:52:48,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:48,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:52:48,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:52:48,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,098 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:48,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:52:48,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:52:48,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:48,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:48,112 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:48,112 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:48,112 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:48,112 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:48,113 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:48,113 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,113 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:48,113 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:48,113 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nested-2.c_Iteration2_Loop [2025-03-17 19:52:48,113 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:48,113 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:48,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,157 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:48,157 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:48,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-17 19:52:48,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:48,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:48,181 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:48,181 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: [] [2025-03-17 19:52:48,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:48,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-17 19:52:48,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:48,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:48,207 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:48,207 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: [] [2025-03-17 19:52:48,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-17 19:52:48,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,215 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-17 19:52:48,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:48,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:48,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-17 19:52:48,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,234 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-17 19:52:48,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:48,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:48,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-03-17 19:52:48,264 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:48,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-17 19:52:48,268 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:48,268 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:48,268 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:48,268 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:48,268 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:48,268 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,268 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:48,268 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:48,268 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nested-2.c_Iteration2_Loop [2025-03-17 19:52:48,268 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:48,268 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:48,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:48,323 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:48,323 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:48,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,325 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-17 19:52:48,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:48,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:48,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:48,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:48,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:48,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:48,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:48,343 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:48,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:48,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,351 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-17 19:52:48,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:48,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:48,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:48,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:48,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:48,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:48,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:48,368 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:48,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-17 19:52:48,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-17 19:52:48,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:48,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:48,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:48,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:48,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:48,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:48,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:48,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:48,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:48,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:52:48,393 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:52:48,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:48,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:48,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:48,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-17 19:52:48,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:48,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:48,398 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:48,398 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 23 Supporting invariants [] [2025-03-17 19:52:48,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:48,406 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:48,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:48,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:48,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:48,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:48,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:52:48,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:48,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:48,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:48,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:48,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:48,436 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:52:48,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:48,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:48,438 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 [2025-03-17 19:52:48,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,447 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 4 states. [2025-03-17 19:52:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2025-03-17 19:52:48,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2025-03-17 19:52:48,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2025-03-17 19:52:48,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2025-03-17 19:52:48,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:48,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2025-03-17 19:52:48,449 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:48,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2025-03-17 19:52:48,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:52:48,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:52:48,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:52:48,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:52:48,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:48,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:48,450 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:48,450 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 19:52:48,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:52:48,450 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:48,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:52:48,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:52:48 BoogieIcfgContainer [2025-03-17 19:52:48,456 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:52:48,456 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:52:48,456 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:52:48,456 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:52:48,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:47" (3/4) ... [2025-03-17 19:52:48,462 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:52:48,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:52:48,463 INFO L158 Benchmark]: Toolchain (without parser) took 1433.30ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 97.3MB in the end (delta: 16.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2025-03-17 19:52:48,463 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:48,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.40ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 103.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:52:48,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.14ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 102.6MB in the end (delta: 493.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:48,463 INFO L158 Benchmark]: Boogie Preprocessor took 12.82ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:48,464 INFO L158 Benchmark]: IcfgBuilder took 156.23ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 92.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:52:48,464 INFO L158 Benchmark]: BuchiAutomizer took 1094.48ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 98.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:48,464 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 97.3MB in the end (delta: 706.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:48,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.40ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 103.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.14ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 102.6MB in the end (delta: 493.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.82ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 156.23ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 92.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1094.48ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 98.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 97.3MB in the end (delta: 706.4kB). 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) -2 * i) + 19) and consists of 3 locations. One deterministic module has affine ranking function (((long) -2 * j) + 23) 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 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:52:48,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:48,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE