./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.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-crafted/Toulouse-MultiBranchesToLoop-2.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 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:18:45,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:18:45,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:18:45,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:18:45,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:18:45,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:18:45,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:18:45,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:18:45,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:18:45,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:18:45,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:18:45,277 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:18:45,277 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:18:45,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:18:45,278 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:18:45,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:18:45,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:18:45,278 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:18:45,278 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 -> 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f [2025-02-08 14:18:45,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:18:45,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:18:45,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:18:45,513 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:18:45,514 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:18:45,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2025-02-08 14:18:46,598 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e630a693/27790fb62569476e8a2f46023c36c9e4/FLAGcc949faed [2025-02-08 14:18:46,845 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:18:46,845 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2025-02-08 14:18:46,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e630a693/27790fb62569476e8a2f46023c36c9e4/FLAGcc949faed [2025-02-08 14:18:47,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e630a693/27790fb62569476e8a2f46023c36c9e4 [2025-02-08 14:18:47,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:18:47,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:18:47,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:47,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:18:47,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:18:47,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9be19f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47, skipping insertion in model container [2025-02-08 14:18:47,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:18:47,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:47,276 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:18:47,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:47,296 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:18:47,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47 WrapperNode [2025-02-08 14:18:47,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:47,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:47,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:18:47,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:18:47,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,317 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2025-02-08 14:18:47,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:47,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:18:47,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:18:47,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:18:47,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,325 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,331 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:18:47,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,332 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:18:47,334 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:18:47,334 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:18:47,334 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:18:47,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (1/1) ... [2025-02-08 14:18:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:47,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:47,365 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 14:18:47,367 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 14:18:47,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:18:47,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:18:47,425 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:18:47,426 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:18:47,492 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-02-08 14:18:47,492 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:18:47,497 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:18:47,497 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:18:47,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:47 BoogieIcfgContainer [2025-02-08 14:18:47,497 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:18:47,498 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:18:47,498 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:18:47,501 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:18:47,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:47,502 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:18:47" (1/3) ... [2025-02-08 14:18:47,502 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6aa8fadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:47, skipping insertion in model container [2025-02-08 14:18:47,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:47,502 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:47" (2/3) ... [2025-02-08 14:18:47,502 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6aa8fadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:47, skipping insertion in model container [2025-02-08 14:18:47,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:47,503 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:47" (3/3) ... [2025-02-08 14:18:47,503 INFO L363 chiAutomizerObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-2.c [2025-02-08 14:18:47,529 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:18:47,530 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:18:47,530 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:18:47,530 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:18:47,530 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:18:47,530 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:18:47,530 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:18:47,530 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:18:47,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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 14:18:47,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:47,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:47,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:47,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:18:47,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:47,544 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:18:47,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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 14:18:47,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:47,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:47,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:47,545 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:18:47,545 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:47,549 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-268435455 <= main_~y~0#1);" "assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := -1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" [2025-02-08 14:18:47,549 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < 100 && main_~z~0#1 < 100;main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1;" [2025-02-08 14:18:47,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2017884083, now seen corresponding path program 1 times [2025-02-08 14:18:47,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:47,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462415255] [2025-02-08 14:18:47,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:47,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:47,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:47,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,612 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:47,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:47,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:47,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:47,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2025-02-08 14:18:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705952609] [2025-02-08 14:18:47,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:47,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:47,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:47,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,648 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:47,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:47,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:47,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:47,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1870102866, now seen corresponding path program 1 times [2025-02-08 14:18:47,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:47,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126216384] [2025-02-08 14:18:47,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:47,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:47,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:18:47,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:18:47,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,669 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:47,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:18:47,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:18:47,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:47,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:47,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:47,924 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:18:47,924 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:18:47,924 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:18:47,925 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:18:47,925 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:18:47,925 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:47,925 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:18:47,925 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:18:47,925 INFO L132 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration1_Lasso [2025-02-08 14:18:47,925 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:18:47,925 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:18:47,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:47,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,026 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:18:48,026 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:18:48,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,029 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 14:18:48,031 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 14:18:48,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:48,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:48,050 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:48,051 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: [] [2025-02-08 14:18:48,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-08 14:18:48,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,060 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 14:18:48,061 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 14:18:48,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:48,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:48,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:48,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,085 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 14:18:48,089 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 14:18:48,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:18:48,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:48,109 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:18:48,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:48,113 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:18:48,113 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:18:48,113 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:18:48,113 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:18:48,113 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:18:48,113 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,113 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:18:48,113 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:18:48,113 INFO L132 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration1_Lasso [2025-02-08 14:18:48,113 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:18:48,113 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:18:48,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:48,194 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:18:48,196 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:18:48,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,199 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 14:18:48,219 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 14:18:48,229 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 14:18:48,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:48,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:48,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:48,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:48,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:48,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:48,242 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:48,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-08 14:18:48,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,250 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 14:18:48,251 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 14:18:48,252 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 14:18:48,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:48,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:18:48,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:48,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:48,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:48,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:18:48,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:18:48,264 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:48,270 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 14:18:48,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,273 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 14:18:48,274 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 14:18:48,275 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 14:18:48,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:48,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:18:48,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:48,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:48,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:48,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:18:48,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:18:48,287 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:48,296 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 14:18:48,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,298 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 14:18:48,300 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 14:18:48,301 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 14:18:48,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:48,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:48,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:48,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:48,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:48,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:48,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:18:48,332 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-08 14:18:48,334 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-02-08 14:18:48,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:48,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:48,336 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 14:18:48,338 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 14:18:48,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:18:48,350 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-08 14:18:48,350 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:18:48,350 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~z~0#1 + 100 Supporting invariants [-1*ULTIMATE.start_main_~x~0#1 - 2 >= 0] [2025-02-08 14:18:48,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:48,360 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-08 14:18:48,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:48,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:48,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:48,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:48,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:48,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 14:18:48,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:48,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:48,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:48,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:48,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:48,554 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:18:48,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:48,556 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 14:18:48,576 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 1 loop predicates [2025-02-08 14:18:48,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:48,821 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 15 states have internal predecessors, (26), 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 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 141 transitions. Complement of second has 13 states. [2025-02-08 14:18:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 0 non-accepting loop states 2 accepting loop states [2025-02-08 14:18:48,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 116 transitions. [2025-02-08 14:18:48,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 116 transitions. Stem has 12 letters. Loop has 1 letters. [2025-02-08 14:18:48,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:48,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 116 transitions. Stem has 13 letters. Loop has 1 letters. [2025-02-08 14:18:48,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:48,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 116 transitions. Stem has 12 letters. Loop has 2 letters. [2025-02-08 14:18:48,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:48,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 141 transitions. [2025-02-08 14:18:48,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2025-02-08 14:18:48,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 16 states and 17 transitions. [2025-02-08 14:18:48,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2025-02-08 14:18:48,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2025-02-08 14:18:48,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2025-02-08 14:18:48,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:48,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2025-02-08 14:18:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2025-02-08 14:18:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2025-02-08 14:18:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-02-08 14:18:48,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-08 14:18:48,884 INFO L432 stractBuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-08 14:18:48,884 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:18:48,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2025-02-08 14:18:48,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:48,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:48,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:48,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:18:48,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:48,885 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-268435455 <= main_~y~0#1);" "assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := 1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;" [2025-02-08 14:18:48,886 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < 100 && main_~z~0#1 < 100;main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1;" [2025-02-08 14:18:48,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1165441075, now seen corresponding path program 1 times [2025-02-08 14:18:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091965292] [2025-02-08 14:18:48,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:48,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:48,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:48,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:48,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:48,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:48,958 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 14:18:48,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:18:48,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091965292] [2025-02-08 14:18:48,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091965292] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:18:48,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:18:48,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:18:48,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753581755] [2025-02-08 14:18:48,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:18:48,964 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:18:48,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2025-02-08 14:18:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111934523] [2025-02-08 14:18:48,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:18:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:48,968 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:48,970 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:48,972 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:18:48,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:48,972 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:48,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:48,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:48,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:48,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:48,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:49,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:18:49,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:18:49,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:18:49,007 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:18:49,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:18:49,022 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2025-02-08 14:18:49,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 13 transitions. [2025-02-08 14:18:49,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:49,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 13 transitions. [2025-02-08 14:18:49,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-02-08 14:18:49,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2025-02-08 14:18:49,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 13 transitions. [2025-02-08 14:18:49,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:49,023 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-08 14:18:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 13 transitions. [2025-02-08 14:18:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-08 14:18:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-02-08 14:18:49,024 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-08 14:18:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:18:49,025 INFO L432 stractBuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-08 14:18:49,025 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:18:49,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 13 transitions. [2025-02-08 14:18:49,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:49,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:49,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:49,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:18:49,026 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:49,026 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_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(-268435455 <= main_~y~0#1);" "assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := 1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;" [2025-02-08 14:18:49,026 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < 100 && main_~z~0#1 < 100;main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1;" [2025-02-08 14:18:49,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1165441074, now seen corresponding path program 1 times [2025-02-08 14:18:49,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:49,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28669406] [2025-02-08 14:18:49,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:49,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:49,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:49,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:49,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,038 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:49,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:49,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:49,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:49,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2025-02-08 14:18:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:49,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631953405] [2025-02-08 14:18:49,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:18:49,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:49,050 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:49,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:49,051 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:18:49,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,051 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:49,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:49,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:49,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:49,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1768934927, now seen corresponding path program 1 times [2025-02-08 14:18:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810323577] [2025-02-08 14:18:49,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:49,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:18:49,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:18:49,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,058 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:49,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:18:49,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:18:49,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:49,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:49,162 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:18:49,162 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:18:49,162 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:18:49,163 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:18:49,163 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:18:49,163 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,163 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:18:49,163 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:18:49,163 INFO L132 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2025-02-08 14:18:49,163 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:18:49,163 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:18:49,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,224 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 14:18:49,262 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:18:49,262 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:18:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,265 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 14:18:49,269 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 14:18:49,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,286 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,286 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 14:18:49,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,296 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 14:18:49,298 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 14:18:49,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,310 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,310 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:18:49,315 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 14:18:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,318 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 14:18:49,319 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 14:18:49,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,331 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,332 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:18:49,337 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 14:18:49,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,339 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 14:18:49,341 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 14:18:49,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,355 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,355 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:18:49,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,363 INFO L229 MonitoredProcess]: Starting monitored process 14 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 14:18:49,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-08 14:18:49,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,376 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,376 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:18:49,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,383 INFO L229 MonitoredProcess]: Starting monitored process 15 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 14:18:49,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-08 14:18:49,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,401 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:18:49,401 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 14:18:49,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-08 14:18:49,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,408 INFO L229 MonitoredProcess]: Starting monitored process 16 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 14:18:49,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-08 14:18:49,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:18:49,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,428 INFO L229 MonitoredProcess]: Starting monitored process 17 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 14:18:49,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-08 14:18:49,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:18:49,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:18:49,450 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:18:49,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,454 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:18:49,454 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:18:49,454 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:18:49,454 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:18:49,454 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:18:49,454 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,454 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:18:49,454 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:18:49,455 INFO L132 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2025-02-08 14:18:49,455 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:18:49,455 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:18:49,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:49,528 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:18:49,528 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:18:49,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,533 INFO L229 MonitoredProcess]: Starting monitored process 18 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 14:18:49,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-08 14:18:49,535 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 14:18:49,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:49,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:49,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:49,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:49,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:49,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:49,549 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:49,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,558 INFO L229 MonitoredProcess]: Starting monitored process 19 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 14:18:49,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-08 14:18:49,563 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 14:18:49,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:49,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:49,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:49,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:49,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:49,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:49,582 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:18:49,588 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2025-02-08 14:18:49,589 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-02-08 14:18:49,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:49,592 INFO L229 MonitoredProcess]: Starting monitored process 20 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 14:18:49,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-08 14:18:49,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:18:49,605 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-08 14:18:49,605 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:18:49,605 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 100 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 - 2 >= 0] [2025-02-08 14:18:49,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:49,616 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-08 14:18:49,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:49,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:49,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:49,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:49,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 14:18:49,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:49,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:49,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:49,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:49,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:49,746 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:18:49,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:49,747 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 14:18:49,747 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 1 loop predicates [2025-02-08 14:18:49,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:49,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 14 transitions. Complement of second has 9 states. [2025-02-08 14:18:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 8 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:18:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2025-02-08 14:18:49,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 1 letters. [2025-02-08 14:18:49,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:49,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 13 letters. Loop has 1 letters. [2025-02-08 14:18:49,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:49,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2025-02-08 14:18:49,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:49,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2025-02-08 14:18:49,857 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:18:49,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:18:49,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:18:49,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:49,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:18:49,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:18:49,857 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:18:49,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:18:49,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:18:49 BoogieIcfgContainer [2025-02-08 14:18:49,864 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:18:49,864 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:18:49,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:18:49,864 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:18:49,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:47" (3/4) ... [2025-02-08 14:18:49,866 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:18:49,867 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:18:49,867 INFO L158 Benchmark]: Toolchain (without parser) took 2703.08ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 68.7MB in the end (delta: 40.5MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 132.11ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 98.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.06ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.8MB in the end (delta: 927.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: Boogie Preprocessor took 14.42ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.8MB in the end (delta: 927.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: IcfgBuilder took 163.40ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.6MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:18:49,868 INFO L158 Benchmark]: BuchiAutomizer took 2365.89ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 68.7MB in the end (delta: 16.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2025-02-08 14:18:49,869 INFO L158 Benchmark]: Witness Printer took 2.66ms. Allocated memory is still 142.6MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:49,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 132.11ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 98.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.06ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.8MB in the end (delta: 927.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.42ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.8MB in the end (delta: 927.6kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 163.40ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 85.6MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2365.89ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 68.7MB in the end (delta: 16.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 2.66ms. Allocated memory is still 142.6MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 37.0kB). 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) + 100) and consists of 12 locations. One deterministic module has affine ranking function (((long) -1 * y) + 100) and consists of 9 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 36 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 14:18:49,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-08 14:18:50,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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