./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/not-01.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-bwb/not-01.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 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:17:25,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:17:25,999 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:17:26,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:17:26,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:17:26,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:17:26,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:17:26,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:17:26,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:17:26,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:17:26,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:17:26,019 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:17:26,019 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:17:26,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:17:26,020 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:17:26,021 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:17:26,021 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:17:26,021 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:17:26,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:17:26,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:17:26,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:17:26,021 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:17:26,021 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 -> 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 [2025-02-08 14:17:26,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:17:26,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:17:26,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:17:26,276 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:17:26,277 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:17:26,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/not-01.c [2025-02-08 14:17:27,463 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e01755ad/acddf15778e040c88d0f2c15010fec33/FLAGb2807f874 [2025-02-08 14:17:27,697 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:17:27,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-bwb/not-01.c [2025-02-08 14:17:27,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e01755ad/acddf15778e040c88d0f2c15010fec33/FLAGb2807f874 [2025-02-08 14:17:28,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e01755ad/acddf15778e040c88d0f2c15010fec33 [2025-02-08 14:17:28,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:17:28,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:17:28,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:17:28,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:17:28,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:17:28,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5385ba79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28, skipping insertion in model container [2025-02-08 14:17:28,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:17:28,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:17:28,140 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:17:28,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:17:28,158 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:17:28,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28 WrapperNode [2025-02-08 14:17:28,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:17:28,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:17:28,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:17:28,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:17:28,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,176 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2025-02-08 14:17:28,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:17:28,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:17:28,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:17:28,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:17:28,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,186 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:17:28,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:17:28,190 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:17:28,191 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:17:28,191 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:17:28,191 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (1/1) ... [2025-02-08 14:17:28,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:28,220 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 14:17:28,225 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 14:17:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:17:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:17:28,278 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:17:28,279 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:17:28,337 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-02-08 14:17:28,338 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:17:28,343 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:17:28,343 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:17:28,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:17:28 BoogieIcfgContainer [2025-02-08 14:17:28,343 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:17:28,344 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:17:28,344 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:17:28,348 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:17:28,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:17:28,349 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:17:28" (1/3) ... [2025-02-08 14:17:28,349 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@273e0461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:17:28, skipping insertion in model container [2025-02-08 14:17:28,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:17:28,349 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:17:28" (2/3) ... [2025-02-08 14:17:28,350 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@273e0461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:17:28, skipping insertion in model container [2025-02-08 14:17:28,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:17:28,350 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:17:28" (3/3) ... [2025-02-08 14:17:28,352 INFO L363 chiAutomizerObserver]: Analyzing ICFG not-01.c [2025-02-08 14:17:28,390 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:17:28,391 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:17:28,391 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:17:28,391 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:17:28,391 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:17:28,391 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:17:28,391 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:17:28,391 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:17:28,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:28,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:28,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:17:28,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:17:28,406 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:17:28,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:17:28,407 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:17:28,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:28,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:28,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:17:28,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:17:28,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:17:28,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:17:28,411 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-08 14:17:28,411 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" "assume main_~a~0#1 > 0;main_~x~0#1 := main_~x~0#1 - main_~a~0#1;" [2025-02-08 14:17:28,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-08 14:17:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462565986] [2025-02-08 14:17:28,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:17:28,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:17:28,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,458 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:17:28,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:17:28,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1055, now seen corresponding path program 1 times [2025-02-08 14:17:28,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063614332] [2025-02-08 14:17:28,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,480 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash 33729, now seen corresponding path program 1 times [2025-02-08 14:17:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748851134] [2025-02-08 14:17:28,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:17:28,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:17:28,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,487 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:17:28,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:17:28,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,551 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:28,552 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:28,552 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:28,552 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:28,552 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:17:28,553 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,553 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:28,553 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:28,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2025-02-08 14:17:28,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:28,553 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:28,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:28,623 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:28,624 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:17:28,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:28,627 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 14:17:28,628 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 14:17:28,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:17:28,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:28,648 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 14:17:28,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:28,649 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 14:17:28,651 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 14:17:28,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:17:28,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:28,697 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:17:28,701 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 14:17:28,701 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:28,701 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:28,701 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:28,701 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:28,701 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:17:28,701 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,701 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:28,701 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:28,701 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2025-02-08 14:17:28,701 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:28,701 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:28,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:28,737 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:28,739 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:17:28,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:28,742 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 14:17:28,744 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 14:17:28,746 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 14:17:28,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:17:28,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:17:28,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:17:28,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:17:28,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:17:28,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:17:28,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:17:28,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:17:28,768 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-08 14:17:28,770 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-08 14:17:28,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:28,772 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 14:17:28,774 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 14:17:28,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:17:28,776 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:17:28,777 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:17:28,777 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2025-02-08 14:17:28,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-08 14:17:28,786 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:17:28,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:17:28,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:17:28,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:28,819 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:17:28,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:28,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:28,831 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:17:28,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:28,854 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 14:17:28,878 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:17:28,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:28,912 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 7 states. [2025-02-08 14:17:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:17:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2025-02-08 14:17:28,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:17:28,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:28,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:17:28,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:28,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-08 14:17:28,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:28,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2025-02-08 14:17:28,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:28,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 8 states and 11 transitions. [2025-02-08 14:17:28,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-08 14:17:28,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-08 14:17:28,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2025-02-08 14:17:28,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:17:28,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-02-08 14:17:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2025-02-08 14:17:28,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2025-02-08 14:17:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2025-02-08 14:17:28,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:17:28,945 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:17:28,945 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:17:28,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2025-02-08 14:17:28,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:28,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:17:28,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:17:28,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:17:28,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:17:28,946 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-02-08 14:17:28,946 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-02-08 14:17:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1088, now seen corresponding path program 1 times [2025-02-08 14:17:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546799540] [2025-02-08 14:17:28,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,950 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1026, now seen corresponding path program 1 times [2025-02-08 14:17:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393601012] [2025-02-08 14:17:28,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,956 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:28,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:28,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1045633, now seen corresponding path program 1 times [2025-02-08 14:17:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:28,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677510081] [2025-02-08 14:17:28,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:28,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:28,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:28,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,963 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:28,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:28,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:28,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:28,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:28,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:28,990 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:28,990 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:28,990 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:28,990 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:28,990 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:17:28,990 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:28,990 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:28,990 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:28,990 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration2_Loop [2025-02-08 14:17:28,990 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:28,990 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:28,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:29,025 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:29,025 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:17:29,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,028 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 14:17:29,030 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 14:17:29,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:17:29,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:29,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:17:29,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,054 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 14:17:29,055 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 14:17:29,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:17:29,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:29,097 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:17:29,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:17:29,102 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:29,102 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:29,102 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:29,102 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:29,102 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:17:29,104 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,104 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:29,104 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:29,104 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration2_Loop [2025-02-08 14:17:29,104 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:29,104 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:29,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:29,140 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:29,140 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:17:29,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,142 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 14:17:29,144 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 14:17:29,145 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 14:17:29,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:17:29,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:17:29,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:17:29,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:17:29,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:17:29,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:17:29,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:17:29,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:17:29,164 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:17:29,164 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:17:29,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,184 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 14:17:29,186 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 14:17:29,187 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:17:29,187 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:17:29,187 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:17:29,187 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2025-02-08 14:17:29,193 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 14:17:29,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:17:29,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,228 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 14:17:29,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,232 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,235 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 14:17:29,263 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 14:17:29,264 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:17:29,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 22 transitions. Complement of second has 7 states. [2025-02-08 14:17:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:17:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2025-02-08 14:17:29,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-08 14:17:29,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:17:29,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-08 14:17:29,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2025-02-08 14:17:29,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:29,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 10 states and 14 transitions. [2025-02-08 14:17:29,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-08 14:17:29,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-08 14:17:29,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2025-02-08 14:17:29,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:17:29,290 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2025-02-08 14:17:29,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2025-02-08 14:17:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2025-02-08 14:17:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2025-02-08 14:17:29,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2025-02-08 14:17:29,291 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2025-02-08 14:17:29,291 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:17:29,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2025-02-08 14:17:29,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:17:29,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:17:29,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:17:29,291 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2025-02-08 14:17:29,291 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:17:29,291 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" "assume main_~a~0#1 > 0;main_~x~0#1 := main_~x~0#1 - main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-02-08 14:17:29,291 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-02-08 14:17:29,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1045602, now seen corresponding path program 2 times [2025-02-08 14:17:29,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:29,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727068682] [2025-02-08 14:17:29,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:17:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:29,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 2 equivalence classes. [2025-02-08 14:17:29,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:29,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:17:29,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,304 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:29,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:29,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:29,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:29,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1026, now seen corresponding path program 2 times [2025-02-08 14:17:29,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:29,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116126082] [2025-02-08 14:17:29,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:17:29,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:29,315 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,318 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:17:29,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,319 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:29,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:29,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1004823587, now seen corresponding path program 1 times [2025-02-08 14:17:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:17:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544242970] [2025-02-08 14:17:29,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:17:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:17:29,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:17:29,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:17:29,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,336 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:17:29,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:17:29,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:17:29,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:17:29,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:17:29,372 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:29,373 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:29,373 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:29,373 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:29,373 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:17:29,373 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,373 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:29,373 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:29,373 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration3_Loop [2025-02-08 14:17:29,373 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:29,373 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:29,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:29,405 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:29,406 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:17:29,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,408 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 14:17:29,410 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 14:17:29,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:17:29,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:29,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-08 14:17:29,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,431 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 14:17:29,433 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 14:17:29,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:17:29,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:17:29,469 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:17:29,473 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 14:17:29,473 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:17:29,473 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:17:29,473 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:17:29,473 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:17:29,473 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:17:29,473 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,473 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:17:29,473 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:17:29,473 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration3_Loop [2025-02-08 14:17:29,473 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:17:29,473 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:17:29,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:17:29,502 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:17:29,502 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:17:29,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,504 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 14:17:29,508 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 14:17:29,509 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 14:17:29,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:17:29,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:17:29,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:17:29,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:17:29,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:17:29,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:17:29,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:17:29,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:17:29,526 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:17:29,526 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:17:29,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:17:29,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:17:29,528 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 14:17:29,531 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 14:17:29,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:17:29,532 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:17:29,532 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:17:29,532 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2025-02-08 14:17:29,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-08 14:17:29,539 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:17:29,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:29,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:29,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,567 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,582 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 14:17:29,582 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:17:29,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,602 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 7 states. [2025-02-08 14:17:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:17:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2025-02-08 14:17:29,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:17:29,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,604 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:17:29,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:29,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:29,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,626 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,638 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 14:17:29,639 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:17:29,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 7 states. [2025-02-08 14:17:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:17:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2025-02-08 14:17:29,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:17:29,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,669 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:17:29,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:17:29,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:17:29,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:17:29,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:17:29,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:17:29,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:17:29,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:17:29,692 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:17:29,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:17:29,714 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 14:17:29,714 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:17:29,714 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,730 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 6 states. [2025-02-08 14:17:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:17:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:17:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2025-02-08 14:17:29,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:17:29,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-08 14:17:29,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-08 14:17:29,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:17:29,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2025-02-08 14:17:29,732 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:17:29,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:17:29,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:17:29,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:17:29,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:17:29,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:17:29,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:17:29,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:17:29,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:17:29 BoogieIcfgContainer [2025-02-08 14:17:29,741 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:17:29,741 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:17:29,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:17:29,742 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:17:29,742 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:17:28" (3/4) ... [2025-02-08 14:17:29,744 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:17:29,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:17:29,745 INFO L158 Benchmark]: Toolchain (without parser) took 1720.67ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 78.5MB in the end (delta: 33.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2025-02-08 14:17:29,745 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:17:29,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.03ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 102.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:17:29,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.14ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.5MB in the end (delta: 974.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:17:29,747 INFO L158 Benchmark]: Boogie Preprocessor took 12.84ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:17:29,747 INFO L158 Benchmark]: IcfgBuilder took 153.36ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 91.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:17:29,748 INFO L158 Benchmark]: BuchiAutomizer took 1396.91ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.6MB in the end (delta: 12.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2025-02-08 14:17:29,749 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:17:29,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.03ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 102.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.14ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.5MB in the end (delta: 974.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.84ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 153.36ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 91.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1396.91ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.6MB in the end (delta: 12.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function (((long) 2 * x) + a) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) 2 * x) + a) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 11 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 14:17:29,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-08 14:17:29,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE