./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc 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/loop-invgen/up.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:33:19,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:33:19,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:33:19,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:33:19,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:33:19,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:33:19,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:33:19,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:33:19,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:33:19,243 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:33:19,243 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:33:19,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:33:19,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:33:19,244 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:33:19,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:33:19,244 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:33:19,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:33:19,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:33:19,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:33:19,245 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:33:19,245 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f [2025-02-06 19:33:19,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:33:19,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:33:19,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:33:19,491 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:33:19,491 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:33:19,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/up.i [2025-02-06 19:33:20,668 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/11c7b694c/1a0b40206ade4a5c9468050920bd1f77/FLAGce53d306e [2025-02-06 19:33:20,893 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:33:20,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i [2025-02-06 19:33:20,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/11c7b694c/1a0b40206ade4a5c9468050920bd1f77/FLAGce53d306e [2025-02-06 19:33:21,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/11c7b694c/1a0b40206ade4a5c9468050920bd1f77 [2025-02-06 19:33:21,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:33:21,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:33:21,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:33:21,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:33:21,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:33:21,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d8359d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21, skipping insertion in model container [2025-02-06 19:33:21,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:33:21,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:33:21,359 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:33:21,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:33:21,385 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:33:21,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21 WrapperNode [2025-02-06 19:33:21,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:33:21,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:33:21,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:33:21,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:33:21,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,405 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2025-02-06 19:33:21,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:33:21,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:33:21,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:33:21,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:33:21,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,422 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 19:33:21,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,425 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:33:21,433 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:33:21,433 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:33:21,433 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:33:21,433 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (1/1) ... [2025-02-06 19:33:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:21,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:21,463 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) [2025-02-06 19:33:21,466 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 [2025-02-06 19:33:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:33:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:33:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:33:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:33:21,523 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:33:21,524 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:33:21,607 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-06 19:33:21,608 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:33:21,614 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:33:21,614 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:33:21,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:33:21 BoogieIcfgContainer [2025-02-06 19:33:21,615 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:33:21,616 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:33:21,616 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:33:21,620 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:33:21,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:33:21,620 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:33:21" (1/3) ... [2025-02-06 19:33:21,621 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@359080d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:33:21, skipping insertion in model container [2025-02-06 19:33:21,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:33:21,623 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:33:21" (2/3) ... [2025-02-06 19:33:21,623 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@359080d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:33:21, skipping insertion in model container [2025-02-06 19:33:21,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:33:21,623 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:33:21" (3/3) ... [2025-02-06 19:33:21,624 INFO L363 chiAutomizerObserver]: Analyzing ICFG up.i [2025-02-06 19:33:21,661 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:33:21,662 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:33:21,662 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:33:21,662 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:33:21,662 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:33:21,663 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:33:21,663 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:33:21,663 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:33:21,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2025-02-06 19:33:21,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2025-02-06 19:33:21,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:33:21,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:33:21,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:33:21,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-06 19:33:21,682 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:33:21,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2025-02-06 19:33:21,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2025-02-06 19:33:21,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:33:21,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:33:21,683 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:33:21,683 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-06 19:33:21,687 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-06 19:33:21,687 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" [2025-02-06 19:33:21,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:21,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1408, now seen corresponding path program 1 times [2025-02-06 19:33:21,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:21,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623862229] [2025-02-06 19:33:21,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:21,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:33:21,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:33:21,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,745 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:33:21,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:33:21,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:33:21,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:33:21,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 43, now seen corresponding path program 1 times [2025-02-06 19:33:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:21,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118828502] [2025-02-06 19:33:21,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:21,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:33:21,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:33:21,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,767 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:33:21,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:33:21,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:33:21,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:33:21,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:21,771 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-02-06 19:33:21,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:21,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32254288] [2025-02-06 19:33:21,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:21,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:21,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:21,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,782 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:33:21,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:21,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:21,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:21,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:21,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:33:21,840 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:33:21,840 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:33:21,840 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:33:21,841 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:33:21,841 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:33:21,841 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:21,841 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:33:21,841 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:33:21,841 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2025-02-06 19:33:21,841 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:33:21,841 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:33:21,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:21,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:21,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:21,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:21,917 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:33:21,917 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:33:21,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:21,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:21,921 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) [2025-02-06 19:33:21,922 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 [2025-02-06 19:33:21,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:33:21,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:21,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-06 19:33:21,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:21,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:21,944 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) [2025-02-06 19:33:21,945 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 [2025-02-06 19:33:21,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:33:21,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:21,976 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:33:21,976 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=5}, {ULTIMATE.start_main_~k~0#1=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] [2025-02-06 19:33:21,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-06 19:33:21,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:21,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:21,984 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) [2025-02-06 19:33:21,986 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 [2025-02-06 19:33:21,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:33:21,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:21,998 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:33:21,998 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-06 19:33:22,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-06 19:33:22,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,005 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) [2025-02-06 19:33:22,006 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 [2025-02-06 19:33:22,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:33:22,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:22,023 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 [2025-02-06 19:33:22,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,025 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) [2025-02-06 19:33:22,027 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 [2025-02-06 19:33:22,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:33:22,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:22,093 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:33:22,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-06 19:33:22,098 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:33:22,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:33:22,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:33:22,099 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:33:22,099 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:33:22,099 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,099 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:33:22,099 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:33:22,099 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2025-02-06 19:33:22,099 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:33:22,099 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:33:22,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,143 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:33:22,146 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:33:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,149 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) [2025-02-06 19:33:22,150 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 [2025-02-06 19:33:22,151 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 [2025-02-06 19:33:22,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,168 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:33:22,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-06 19:33:22,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,178 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) [2025-02-06 19:33:22,179 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 [2025-02-06 19:33:22,180 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 [2025-02-06 19:33:22,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,193 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:33:22,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-06 19:33:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,200 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) [2025-02-06 19:33:22,202 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 [2025-02-06 19:33:22,202 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 [2025-02-06 19:33:22,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,215 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:33:22,218 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-06 19:33:22,222 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:33:22,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,225 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) [2025-02-06 19:33:22,226 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 [2025-02-06 19:33:22,227 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:33:22,227 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:33:22,228 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:33:22,228 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-06 19:33:22,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-06 19:33:22,237 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:33:22,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:22,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:33:22,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:33:22,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:33:22,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:33:22,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:33:22,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:33:22,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:33:22,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:33:22,291 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:33:22,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:33:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:33:22,312 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-06 19:33:22,314 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:33:22,340 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 3 states. [2025-02-06 19:33:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-06 19:33:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:33:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2025-02-06 19:33:22,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 1 letters. [2025-02-06 19:33:22,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 3 letters. Loop has 1 letters. [2025-02-06 19:33:22,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-06 19:33:22,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2025-02-06 19:33:22,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-06 19:33:22,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 15 transitions. [2025-02-06 19:33:22,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-02-06 19:33:22,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2025-02-06 19:33:22,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2025-02-06 19:33:22,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:33:22,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2025-02-06 19:33:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2025-02-06 19:33:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2025-02-06 19:33:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:33:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2025-02-06 19:33:22,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2025-02-06 19:33:22,377 INFO L432 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2025-02-06 19:33:22,377 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:33:22,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2025-02-06 19:33:22,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-06 19:33:22,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:33:22,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:33:22,378 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:33:22,378 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:33:22,378 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0;" [2025-02-06 19:33:22,378 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < main_~n~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" [2025-02-06 19:33:22,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash 43659, now seen corresponding path program 1 times [2025-02-06 19:33:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:22,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640834608] [2025-02-06 19:33:22,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:22,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:22,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:22,384 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:33:22,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:22,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:33:22,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:22,396 INFO L85 PathProgramCache]: Analyzing trace with hash 38689, now seen corresponding path program 1 times [2025-02-06 19:33:22,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:22,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897694116] [2025-02-06 19:33:22,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:22,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:22,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:22,402 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:33:22,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:33:22,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:33:22,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1300654167, now seen corresponding path program 1 times [2025-02-06 19:33:22,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:33:22,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003288592] [2025-02-06 19:33:22,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:33:22,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:33:22,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:33:22,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:33:22,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:33:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:33:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:33:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003288592] [2025-02-06 19:33:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003288592] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:33:22,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:33:22,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 19:33:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120250765] [2025-02-06 19:33:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:33:22,563 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:33:22,564 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:33:22,564 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:33:22,564 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:33:22,564 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:33:22,564 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,564 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:33:22,564 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:33:22,564 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2025-02-06 19:33:22,564 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:33:22,564 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:33:22,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,619 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:33:22,619 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:33:22,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,621 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) [2025-02-06 19:33:22,622 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 [2025-02-06 19:33:22,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:33:22,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:22,635 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:33:22,635 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-06 19:33:22,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-06 19:33:22,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,643 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) [2025-02-06 19:33:22,645 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 [2025-02-06 19:33:22,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:33:22,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:22,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-06 19:33:22,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,664 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) [2025-02-06 19:33:22,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:33:22,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:33:22,676 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 [2025-02-06 19:33:22,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-06 19:33:22,697 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:33:22,700 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 [2025-02-06 19:33:22,701 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:33:22,701 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:33:22,701 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:33:22,701 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:33:22,701 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:33:22,701 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,701 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:33:22,701 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:33:22,701 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2025-02-06 19:33:22,701 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:33:22,701 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:33:22,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:33:22,751 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:33:22,751 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:33:22,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,754 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:33:22,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-06 19:33:22,756 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 [2025-02-06 19:33:22,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,768 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:33:22,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-06 19:33:22,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,777 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:33:22,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-06 19:33:22,779 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 [2025-02-06 19:33:22,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,794 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:33:22,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-06 19:33:22,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,801 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:33:22,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-06 19:33:22,802 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 [2025-02-06 19:33:22,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:33:22,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:33:22,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:33:22,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:33:22,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:33:22,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:33:22,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:33:22,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:33:22,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:33:22,817 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:33:22,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:33:22,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:33:22,818 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:33:22,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-06 19:33:22,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:33:22,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:33:22,821 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:33:22,821 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2025-02-06 19:33:22,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-06 19:33:22,827 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:33:22,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:33:22,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:33:22,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:33:22,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:33:22,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:33:22,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:33:22,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:33:22,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:33:22,851 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 19:33:22,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:33:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:33:22,906 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-06 19:33:22,906 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 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) [2025-02-06 19:33:22,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 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) Result 20 states and 27 transitions. Complement of second has 9 states. [2025-02-06 19:33:22,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-02-06 19:33:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 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) [2025-02-06 19:33:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2025-02-06 19:33:22,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-06 19:33:22,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-06 19:33:22,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-06 19:33:22,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:33:22,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2025-02-06 19:33:22,940 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:33:22,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2025-02-06 19:33:22,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 19:33:22,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 19:33:22,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 19:33:22,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:33:22,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:33:22,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:33:22,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:33:22,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 19:33:22,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 19:33:22,943 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 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) [2025-02-06 19:33:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:33:22,945 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:33:22,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 19:33:22,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 19:33:22,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:33:22,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 19:33:22,945 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:33:22,945 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:33:22,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-06 19:33:22,946 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:33:22,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-06 19:33:22,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:33:22 BoogieIcfgContainer [2025-02-06 19:33:22,952 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:33:22,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:33:22,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:33:22,952 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:33:22,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:33:21" (3/4) ... [2025-02-06 19:33:22,954 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 19:33:22,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:33:22,955 INFO L158 Benchmark]: Toolchain (without parser) took 1732.64ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 106.5MB in the end (delta: 23.9MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2025-02-06 19:33:22,955 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 226.5MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.31ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 119.9MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.37ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: Boogie Preprocessor took 25.88ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 117.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: IcfgBuilder took 182.02ms. Allocated memory is still 167.8MB. Free memory was 117.6MB in the beginning and 106.9MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: BuchiAutomizer took 1336.07ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 106.5MB in the end (delta: 450.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:33:22,956 INFO L158 Benchmark]: Witness Printer took 2.54ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 106.5MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:33:22,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 226.5MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.31ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 119.9MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.37ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.88ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 117.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 182.02ms. Allocated memory is still 167.8MB. Free memory was 117.6MB in the beginning and 106.9MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1336.07ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 106.5MB in the end (delta: 450.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.54ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 106.5MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 2 locations. One deterministic module has affine ranking function k and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 7 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-06 19:33:22,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-06 19:33:23,170 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