./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Narrowing.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/Narrowing.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:20:42,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:20:42,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:20:42,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:20:42,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:20:42,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:20:42,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:20:42,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:20:42,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:20:42,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:20:42,682 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:20:42,682 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:20:42,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:20:42,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:20:42,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:20:42,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:20:42,684 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:20:42,684 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac [2025-02-08 14:20:42,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:20:42,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:20:42,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:20:42,901 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:20:42,901 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:20:42,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Narrowing.c [2025-02-08 14:20:44,134 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27b90019b/3df8aba9c2d34e458275224b80478956/FLAG87bfe1881 [2025-02-08 14:20:44,339 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:20:44,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Narrowing.c [2025-02-08 14:20:44,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27b90019b/3df8aba9c2d34e458275224b80478956/FLAG87bfe1881 [2025-02-08 14:20:44,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27b90019b/3df8aba9c2d34e458275224b80478956 [2025-02-08 14:20:44,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:20:44,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:20:44,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:20:44,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:20:44,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:20:44,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511bb1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44, skipping insertion in model container [2025-02-08 14:20:44,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:20:44,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:20:44,865 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:20:44,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:20:44,883 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:20:44,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44 WrapperNode [2025-02-08 14:20:44,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:20:44,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:20:44,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:20:44,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:20:44,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,899 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-02-08 14:20:44,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:20:44,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:20:44,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:20:44,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:20:44,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,909 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:20:44,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,911 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:20:44,914 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:20:44,915 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:20:44,915 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:20:44,916 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (1/1) ... [2025-02-08 14:20:44,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:44,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:44,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:44,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-08 14:20:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:20:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:20:45,017 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:20:45,018 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:20:45,072 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-02-08 14:20:45,072 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:20:45,078 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:20:45,079 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:20:45,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:20:45 BoogieIcfgContainer [2025-02-08 14:20:45,080 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:20:45,081 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:20:45,081 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:20:45,087 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:20:45,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:20:45,087 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:20:44" (1/3) ... [2025-02-08 14:20:45,088 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df4de05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:20:45, skipping insertion in model container [2025-02-08 14:20:45,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:20:45,089 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:20:44" (2/3) ... [2025-02-08 14:20:45,089 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df4de05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:20:45, skipping insertion in model container [2025-02-08 14:20:45,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:20:45,089 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:20:45" (3/3) ... [2025-02-08 14:20:45,090 INFO L363 chiAutomizerObserver]: Analyzing ICFG Narrowing.c [2025-02-08 14:20:45,150 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:20:45,151 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:20:45,151 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:20:45,151 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:20:45,151 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:20:45,152 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:20:45,152 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:20:45,152 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:20:45,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-08 14:20:45,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:45,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:45,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:20:45,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:45,175 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:20:45,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-08 14:20:45,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:45,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:45,177 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:20:45,177 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:45,182 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" [2025-02-08 14:20:45,182 INFO L754 eck$LassoCheckResult]: Loop: "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" [2025-02-08 14:20:45,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash 43, now seen corresponding path program 1 times [2025-02-08 14:20:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578914616] [2025-02-08 14:20:45,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:45,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,250 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:45,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:45,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1210949467, now seen corresponding path program 1 times [2025-02-08 14:20:45,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981821521] [2025-02-08 14:20:45,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:45,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:45,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:45,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:45,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:45,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981821521] [2025-02-08 14:20:45,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981821521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:45,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:20:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317701892] [2025-02-08 14:20:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:45,339 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:20:45,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:45,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:20:45,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:20:45,358 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:45,386 INFO L93 Difference]: Finished difference Result 15 states and 25 transitions. [2025-02-08 14:20:45,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 25 transitions. [2025-02-08 14:20:45,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2025-02-08 14:20:45,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 22 transitions. [2025-02-08 14:20:45,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-02-08 14:20:45,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2025-02-08 14:20:45,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 22 transitions. [2025-02-08 14:20:45,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:20:45,395 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 22 transitions. [2025-02-08 14:20:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 22 transitions. [2025-02-08 14:20:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-08 14:20:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22 transitions. [2025-02-08 14:20:45,417 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 22 transitions. [2025-02-08 14:20:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:20:45,421 INFO L432 stractBuchiCegarLoop]: Abstraction has 13 states and 22 transitions. [2025-02-08 14:20:45,421 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:20:45,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 22 transitions. [2025-02-08 14:20:45,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2025-02-08 14:20:45,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:45,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:45,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:20:45,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:45,422 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" [2025-02-08 14:20:45,423 INFO L754 eck$LassoCheckResult]: Loop: "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" [2025-02-08 14:20:45,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash 43, now seen corresponding path program 2 times [2025-02-08 14:20:45,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870865350] [2025-02-08 14:20:45,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,428 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,429 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,429 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:20:45,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,429 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:45,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:45,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1210950428, now seen corresponding path program 1 times [2025-02-08 14:20:45,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614863103] [2025-02-08 14:20:45,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:45,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:45,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:45,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:45,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614863103] [2025-02-08 14:20:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614863103] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:45,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:45,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:20:45,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307637866] [2025-02-08 14:20:45,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:45,490 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:20:45,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:45,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:20:45,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:20:45,491 INFO L87 Difference]: Start difference. First operand 13 states and 22 transitions. cyclomatic complexity: 10 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:45,539 INFO L93 Difference]: Finished difference Result 37 states and 60 transitions. [2025-02-08 14:20:45,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 60 transitions. [2025-02-08 14:20:45,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2025-02-08 14:20:45,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 60 transitions. [2025-02-08 14:20:45,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2025-02-08 14:20:45,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2025-02-08 14:20:45,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 60 transitions. [2025-02-08 14:20:45,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:20:45,543 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 60 transitions. [2025-02-08 14:20:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 60 transitions. [2025-02-08 14:20:45,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-02-08 14:20:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 36 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2025-02-08 14:20:45,545 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 60 transitions. [2025-02-08 14:20:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:20:45,546 INFO L432 stractBuchiCegarLoop]: Abstraction has 37 states and 60 transitions. [2025-02-08 14:20:45,547 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:20:45,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 60 transitions. [2025-02-08 14:20:45,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2025-02-08 14:20:45,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:45,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:45,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:20:45,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:45,548 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" [2025-02-08 14:20:45,548 INFO L754 eck$LassoCheckResult]: Loop: "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" [2025-02-08 14:20:45,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash 43, now seen corresponding path program 3 times [2025-02-08 14:20:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694850556] [2025-02-08 14:20:45,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:20:45,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,553 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,553 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,553 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:20:45,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,553 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:45,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:45,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1211903741, now seen corresponding path program 1 times [2025-02-08 14:20:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334319081] [2025-02-08 14:20:45,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:45,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:45,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:45,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,561 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:45,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:45,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:45,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:45,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash -167647321, now seen corresponding path program 1 times [2025-02-08 14:20:45,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:45,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091979514] [2025-02-08 14:20:45,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:45,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:20:45,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:20:45,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,569 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:45,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:20:45,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:20:45,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:45,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:45,642 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:45,642 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:45,642 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:45,643 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:45,643 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:45,643 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,643 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:45,643 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:45,643 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration3_Loop [2025-02-08 14:20:45,643 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:45,643 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:45,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,743 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:45,743 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:45,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:45,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:45,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-08 14:20:45,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:45,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:45,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-08 14:20:45,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:45,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:45,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:45,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:45,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-08 14:20:45,815 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:45,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:45,819 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:45,819 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:45,819 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:45,819 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:45,819 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:45,819 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,819 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:45,819 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:45,820 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration3_Loop [2025-02-08 14:20:45,820 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:45,820 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:45,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:45,900 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:45,903 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:45,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:45,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-08 14:20:45,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:45,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:45,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:45,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:45,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:45,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:45,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:45,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:45,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:20:45,933 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:20:45,935 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:20:45,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:45,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:45,938 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:45,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-08 14:20:45,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:20:45,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:20:45,941 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:20:45,941 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-08 14:20:45,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:45,949 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:20:45,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:45,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:20:45,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:20:45,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:45,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:45,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:45,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:45,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:45,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:45,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:45,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:20:45,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:46,025 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:46,026 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 60 transitions. cyclomatic complexity: 24 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:46,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 60 transitions. cyclomatic complexity: 24. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 117 states and 183 transitions. Complement of second has 7 states. [2025-02-08 14:20:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2025-02-08 14:20:46,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 6 letters. [2025-02-08 14:20:46,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:46,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-08 14:20:46,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:46,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 12 letters. [2025-02-08 14:20:46,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:46,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 183 transitions. [2025-02-08 14:20:46,075 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 72 [2025-02-08 14:20:46,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 117 states and 183 transitions. [2025-02-08 14:20:46,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2025-02-08 14:20:46,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2025-02-08 14:20:46,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 183 transitions. [2025-02-08 14:20:46,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:46,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 183 transitions. [2025-02-08 14:20:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 183 transitions. [2025-02-08 14:20:46,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 82. [2025-02-08 14:20:46,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 81 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:46,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 132 transitions. [2025-02-08 14:20:46,082 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 132 transitions. [2025-02-08 14:20:46,082 INFO L432 stractBuchiCegarLoop]: Abstraction has 82 states and 132 transitions. [2025-02-08 14:20:46,082 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:20:46,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 132 transitions. [2025-02-08 14:20:46,083 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2025-02-08 14:20:46,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:46,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:46,083 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:20:46,084 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:46,084 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" [2025-02-08 14:20:46,084 INFO L754 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" [2025-02-08 14:20:46,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1344, now seen corresponding path program 1 times [2025-02-08 14:20:46,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714593139] [2025-02-08 14:20:46,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:20:46,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:20:46,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,088 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:46,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:20:46,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:20:46,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:46,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1181366022, now seen corresponding path program 1 times [2025-02-08 14:20:46,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198988217] [2025-02-08 14:20:46,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:46,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:46,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,093 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:46,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:46,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:46,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:46,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash -902098683, now seen corresponding path program 1 times [2025-02-08 14:20:46,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282117328] [2025-02-08 14:20:46,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:20:46,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:20:46,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:46,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:46,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282117328] [2025-02-08 14:20:46,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282117328] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:46,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:46,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:20:46,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573398583] [2025-02-08 14:20:46,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:46,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:20:46,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:20:46,153 INFO L87 Difference]: Start difference. First operand 82 states and 132 transitions. cyclomatic complexity: 55 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:46,163 INFO L93 Difference]: Finished difference Result 82 states and 125 transitions. [2025-02-08 14:20:46,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 125 transitions. [2025-02-08 14:20:46,164 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 44 [2025-02-08 14:20:46,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 76 states and 115 transitions. [2025-02-08 14:20:46,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2025-02-08 14:20:46,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2025-02-08 14:20:46,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 115 transitions. [2025-02-08 14:20:46,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:46,165 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 115 transitions. [2025-02-08 14:20:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 115 transitions. [2025-02-08 14:20:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2025-02-08 14:20:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 69 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 107 transitions. [2025-02-08 14:20:46,168 INFO L240 hiAutomatonCegarLoop]: Abstraction has 70 states and 107 transitions. [2025-02-08 14:20:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:20:46,169 INFO L432 stractBuchiCegarLoop]: Abstraction has 70 states and 107 transitions. [2025-02-08 14:20:46,169 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-08 14:20:46,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 107 transitions. [2025-02-08 14:20:46,170 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 41 [2025-02-08 14:20:46,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:46,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:46,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-08 14:20:46,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:46,171 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:46,171 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:46,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash 41673, now seen corresponding path program 1 times [2025-02-08 14:20:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942270570] [2025-02-08 14:20:46,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:20:46,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:20:46,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,175 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:46,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:20:46,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:20:46,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:46,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1122199451, now seen corresponding path program 1 times [2025-02-08 14:20:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616995331] [2025-02-08 14:20:46,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:46,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:46,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,181 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:46,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:46,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:46,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:46,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:46,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1212208227, now seen corresponding path program 1 times [2025-02-08 14:20:46,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:46,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269378516] [2025-02-08 14:20:46,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:46,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:46,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:20:46,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:20:46,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:46,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:46,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269378516] [2025-02-08 14:20:46,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269378516] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:46,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:46,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:20:46,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744688534] [2025-02-08 14:20:46,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:46,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-08 14:20:46,271 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:46,272 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:46,272 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:46,272 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:46,272 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:46,272 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,272 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:46,272 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:46,272 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration5_Loop [2025-02-08 14:20:46,272 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:46,272 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:46,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,377 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:46,377 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:46,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-08 14:20:46,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:46,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:46,403 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:46,403 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:46,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-08 14:20:46,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,415 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-08 14:20:46,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:46,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:46,439 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:46,439 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~range~0#1=1} Honda state: {ULTIMATE.start_main_~range~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:46,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-08 14:20:46,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:46,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:46,469 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:46,469 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:46,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-08 14:20:46,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-08 14:20:46,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:46,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:46,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,514 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-08 14:20:46,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:46,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:46,556 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:46,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-08 14:20:46,561 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:46,561 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:46,561 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:46,561 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:46,561 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:46,561 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,561 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:46,561 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:46,561 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration5_Loop [2025-02-08 14:20:46,561 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:46,561 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:46,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:46,661 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:46,661 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:46,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,667 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-08 14:20:46,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:46,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:46,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:46,684 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-08 14:20:46,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,694 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-08 14:20:46,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,706 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:46,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:46,707 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:46,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,709 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-08 14:20:46,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,718 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-08 14:20:46,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,729 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:46,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:46,732 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:46,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,734 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-08 14:20:46,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,747 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-08 14:20:46,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:46,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:46,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:46,765 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,773 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-08 14:20:46,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:46,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:46,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,788 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,793 INFO L451 LassoAnalysis]: Using template '2-nested'. [2025-02-08 14:20:46,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-08 14:20:46,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,808 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:46,810 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2025-02-08 14:20:46,811 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2025-02-08 14:20:46,820 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,834 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-08 14:20:46,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,851 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:46,851 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:46,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:46,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,858 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-08 14:20:46,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,869 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-08 14:20:46,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,886 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:46,886 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:46,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:46,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,891 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-08 14:20:46,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,904 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-08 14:20:46,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,917 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:46,919 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2025-02-08 14:20:46,919 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2025-02-08 14:20:46,923 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-08 14:20:46,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,932 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-08 14:20:46,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:46,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,947 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:46,948 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2025-02-08 14:20:46,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:46,950 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:46,955 INFO L451 LassoAnalysis]: Using template '3-nested'. [2025-02-08 14:20:46,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,958 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-08 14:20:46,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:46,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:46,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:46,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:46,972 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:46,975 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:46,975 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:46,979 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:46,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-08 14:20:46,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:46,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:46,992 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:46,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-08 14:20:46,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,004 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,004 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,005 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,007 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-08 14:20:47,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,021 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-08 14:20:47,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,035 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,035 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,038 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,043 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-08 14:20:47,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,052 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-08 14:20:47,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,064 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,066 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,067 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:47,071 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,080 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-08 14:20:47,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,095 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,096 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:47,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,098 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,104 INFO L451 LassoAnalysis]: Using template '4-nested'. [2025-02-08 14:20:47,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,106 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-08 14:20:47,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,122 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,126 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2025-02-08 14:20:47,126 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2025-02-08 14:20:47,138 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-02-08 14:20:47,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,149 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-08 14:20:47,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,161 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,161 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,164 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2025-02-08 14:20:47,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,167 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-02-08 14:20:47,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,176 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-08 14:20:47,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,189 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,189 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,191 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2025-02-08 14:20:47,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,195 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,204 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-08 14:20:47,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,220 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,230 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2025-02-08 14:20:47,230 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2025-02-08 14:20:47,234 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-02-08 14:20:47,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,245 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-08 14:20:47,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:47,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,261 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,262 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2025-02-08 14:20:47,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,264 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-02-08 14:20:47,269 INFO L451 LassoAnalysis]: Using template '2-phase'. [2025-02-08 14:20:47,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,271 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-08 14:20:47,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,287 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,287 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,287 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:47,290 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2025-02-08 14:20:47,290 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2025-02-08 14:20:47,298 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,305 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-02-08 14:20:47,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,319 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,319 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,319 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,319 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:47,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:47,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,324 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,333 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-02-08 14:20:47,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,354 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,354 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,354 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,354 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:47,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:47,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,365 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,373 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-02-08 14:20:47,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,398 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,398 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,398 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:47,400 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2025-02-08 14:20:47,400 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2025-02-08 14:20:47,405 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-02-08 14:20:47,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,414 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-02-08 14:20:47,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,431 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,431 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,432 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2025-02-08 14:20:47,433 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2025-02-08 14:20:47,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,434 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-02-08 14:20:47,440 INFO L451 LassoAnalysis]: Using template '3-phase'. [2025-02-08 14:20:47,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,441 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-02-08 14:20:47,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,454 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,454 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2025-02-08 14:20:47,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,454 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,456 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,456 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:47,461 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-02-08 14:20:47,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,468 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-02-08 14:20:47,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,483 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,483 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2025-02-08 14:20:47,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,484 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,484 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,486 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,490 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-02-08 14:20:47,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,503 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-02-08 14:20:47,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,515 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,515 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2025-02-08 14:20:47,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,515 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,515 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,517 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,524 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-02-08 14:20:47,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,532 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-02-08 14:20:47,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,545 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,545 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2025-02-08 14:20:47,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,545 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,548 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,548 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:47,555 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,563 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-02-08 14:20:47,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,594 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,594 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2025-02-08 14:20:47,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,595 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,595 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:47,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,597 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-02-08 14:20:47,603 INFO L451 LassoAnalysis]: Using template '4-phase'. [2025-02-08 14:20:47,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,608 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-02-08 14:20:47,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,621 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,621 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,621 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,623 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2025-02-08 14:20:47,623 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2025-02-08 14:20:47,631 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2025-02-08 14:20:47,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,639 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2025-02-08 14:20:47,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,655 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,655 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,655 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,655 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,658 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2025-02-08 14:20:47,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,665 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2025-02-08 14:20:47,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,673 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2025-02-08 14:20:47,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,688 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,688 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,688 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,688 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,692 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2025-02-08 14:20:47,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,702 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2025-02-08 14:20:47,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,710 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2025-02-08 14:20:47,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,726 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,726 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,727 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,731 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2025-02-08 14:20:47,731 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2025-02-08 14:20:47,737 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2025-02-08 14:20:47,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,748 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2025-02-08 14:20:47,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,760 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,761 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,761 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2025-02-08 14:20:47,762 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2025-02-08 14:20:47,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,766 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,771 INFO L451 LassoAnalysis]: Using template '2-lex'. [2025-02-08 14:20:47,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,774 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2025-02-08 14:20:47,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,786 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,786 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,786 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,788 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,788 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:47,792 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,804 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2025-02-08 14:20:47,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,815 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,816 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,816 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,816 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,817 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,820 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2025-02-08 14:20:47,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,827 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2025-02-08 14:20:47,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,839 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,839 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,839 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,839 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,841 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2025-02-08 14:20:47,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,845 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,854 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2025-02-08 14:20:47,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,867 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,867 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,867 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,869 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,869 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-02-08 14:20:47,874 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:47,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,884 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2025-02-08 14:20:47,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,896 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,897 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2025-02-08 14:20:47,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,897 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2025-02-08 14:20:47,898 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:47,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,900 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2025-02-08 14:20:47,905 INFO L451 LassoAnalysis]: Using template '3-lex'. [2025-02-08 14:20:47,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,908 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2025-02-08 14:20:47,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,922 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,922 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:47,922 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2025-02-08 14:20:47,926 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2025-02-08 14:20:47,926 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2025-02-08 14:20:47,935 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2025-02-08 14:20:47,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,947 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2025-02-08 14:20:47,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,960 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,960 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,960 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,960 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2025-02-08 14:20:47,963 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:47,967 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:47,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2025-02-08 14:20:47,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:47,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:47,976 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:47,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2025-02-08 14:20:47,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:47,989 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:47,989 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:47,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:47,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:47,989 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:47,989 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2025-02-08 14:20:47,993 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2025-02-08 14:20:47,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:48,011 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:48,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,019 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2025-02-08 14:20:48,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:48,032 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:48,032 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:48,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:48,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:48,032 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2025-02-08 14:20:48,037 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2025-02-08 14:20:48,037 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2025-02-08 14:20:48,049 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:48,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2025-02-08 14:20:48,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,063 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2025-02-08 14:20:48,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:48,083 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2025-02-08 14:20:48,083 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2025-02-08 14:20:48,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:48,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:48,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:48,084 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2025-02-08 14:20:48,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:48,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:48,087 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:48,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:48,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:20:48,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:20:48,095 INFO L87 Difference]: Start difference. First operand 70 states and 107 transitions. cyclomatic complexity: 41 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:48,105 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2025-02-08 14:20:48,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 71 transitions. [2025-02-08 14:20:48,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2025-02-08 14:20:48,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 50 states and 69 transitions. [2025-02-08 14:20:48,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2025-02-08 14:20:48,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2025-02-08 14:20:48,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 69 transitions. [2025-02-08 14:20:48,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:48,110 INFO L218 hiAutomatonCegarLoop]: Abstraction has 50 states and 69 transitions. [2025-02-08 14:20:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 69 transitions. [2025-02-08 14:20:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2025-02-08 14:20:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 40 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2025-02-08 14:20:48,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 57 transitions. [2025-02-08 14:20:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:20:48,114 INFO L432 stractBuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2025-02-08 14:20:48,114 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-08 14:20:48,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 57 transitions. [2025-02-08 14:20:48,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2025-02-08 14:20:48,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:48,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:48,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-08 14:20:48,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:48,115 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:48,115 INFO L754 eck$LassoCheckResult]: Loop: "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1291871, now seen corresponding path program 1 times [2025-02-08 14:20:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790628750] [2025-02-08 14:20:48,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:48,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:48,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,123 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:48,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:48,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:48,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:48,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1034413960, now seen corresponding path program 1 times [2025-02-08 14:20:48,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109737898] [2025-02-08 14:20:48,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:48,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:48,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,136 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:48,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:48,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:48,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:48,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1104879770, now seen corresponding path program 1 times [2025-02-08 14:20:48,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011379195] [2025-02-08 14:20:48,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:48,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:48,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:48,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:48,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011379195] [2025-02-08 14:20:48,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011379195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:48,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:48,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:20:48,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449520652] [2025-02-08 14:20:48,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:48,231 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:48,231 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:48,231 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:48,231 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:48,231 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:48,231 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,231 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:48,231 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:48,231 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration6_Loop [2025-02-08 14:20:48,231 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:48,231 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:48,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,318 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:48,318 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:48,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,319 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2025-02-08 14:20:48,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:48,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:48,339 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:48,339 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:48,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,347 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2025-02-08 14:20:48,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:48,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:48,361 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:48,361 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:48,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,369 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2025-02-08 14:20:48,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:48,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:48,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,389 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2025-02-08 14:20:48,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:48,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:48,411 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:48,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,414 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:48,414 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:48,414 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:48,414 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:48,414 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:48,415 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,415 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:48,415 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:48,415 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration6_Loop [2025-02-08 14:20:48,415 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:48,415 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:48,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,491 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:48,491 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:48,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,496 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2025-02-08 14:20:48,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:48,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:48,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:48,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:48,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:48,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:48,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:48,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:48,516 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:48,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2025-02-08 14:20:48,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,527 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2025-02-08 14:20:48,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:48,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:48,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:48,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:48,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:48,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:48,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:48,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:48,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,550 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2025-02-08 14:20:48,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:48,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:48,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:48,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:48,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:48,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:48,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:48,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:48,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:20:48,569 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:20:48,569 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:20:48,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,571 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2025-02-08 14:20:48,573 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:20:48,573 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:20:48,573 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:20:48,573 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-08 14:20:48,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2025-02-08 14:20:48,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:20:48,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:48,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:48,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:48,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:48,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:48,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:48,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:48,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:48,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:20:48,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:48,635 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:48,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 57 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,665 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 57 transitions. cyclomatic complexity: 18. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 114 states and 153 transitions. Complement of second has 7 states. [2025-02-08 14:20:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2025-02-08 14:20:48,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-08 14:20:48,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:48,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:48,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:48,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 12 letters. [2025-02-08 14:20:48,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:48,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 153 transitions. [2025-02-08 14:20:48,667 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 42 [2025-02-08 14:20:48,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 108 states and 144 transitions. [2025-02-08 14:20:48,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2025-02-08 14:20:48,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2025-02-08 14:20:48,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 144 transitions. [2025-02-08 14:20:48,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:48,669 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 144 transitions. [2025-02-08 14:20:48,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 144 transitions. [2025-02-08 14:20:48,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2025-02-08 14:20:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 92 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 128 transitions. [2025-02-08 14:20:48,675 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 128 transitions. [2025-02-08 14:20:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:48,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:20:48,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:20:48,680 INFO L87 Difference]: Start difference. First operand 93 states and 128 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:48,702 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2025-02-08 14:20:48,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 142 transitions. [2025-02-08 14:20:48,703 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 50 [2025-02-08 14:20:48,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 92 states and 118 transitions. [2025-02-08 14:20:48,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2025-02-08 14:20:48,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2025-02-08 14:20:48,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 118 transitions. [2025-02-08 14:20:48,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:48,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 118 transitions. [2025-02-08 14:20:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 118 transitions. [2025-02-08 14:20:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 41. [2025-02-08 14:20:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2025-02-08 14:20:48,705 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 55 transitions. [2025-02-08 14:20:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:20:48,706 INFO L432 stractBuchiCegarLoop]: Abstraction has 41 states and 55 transitions. [2025-02-08 14:20:48,706 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-08 14:20:48,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 55 transitions. [2025-02-08 14:20:48,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2025-02-08 14:20:48,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:48,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:48,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-08 14:20:48,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:48,707 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:48,707 INFO L754 eck$LassoCheckResult]: Loop: "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:48,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1291871, now seen corresponding path program 2 times [2025-02-08 14:20:48,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117701015] [2025-02-08 14:20:48,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:48,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,709 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:48,710 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:48,710 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:20:48,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,710 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:48,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:48,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:48,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:48,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1034413991, now seen corresponding path program 1 times [2025-02-08 14:20:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595445202] [2025-02-08 14:20:48,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:48,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:48,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:48,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,714 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:48,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:48,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:48,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:48,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1104879739, now seen corresponding path program 1 times [2025-02-08 14:20:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:48,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448021480] [2025-02-08 14:20:48,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:48,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:48,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:48,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,718 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:48,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:48,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:48,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:48,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:48,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:48,766 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:48,766 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:48,766 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:48,766 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:48,766 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:48,766 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,766 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:48,766 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:48,766 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration7_Loop [2025-02-08 14:20:48,766 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:48,766 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:48,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:48,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2025-02-08 14:20:48,872 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:48,872 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:48,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,874 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2025-02-08 14:20:48,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:48,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:48,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:48,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:48,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:48,894 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:48,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2025-02-08 14:20:48,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:48,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,047 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:49,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2025-02-08 14:20:49,055 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:49,055 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:49,055 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:49,055 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:49,055 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:49,055 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,055 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:49,055 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:49,055 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration7_Loop [2025-02-08 14:20:49,055 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:49,055 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:49,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,139 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:49,139 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:49,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,141 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2025-02-08 14:20:49,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:49,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:49,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:49,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:49,153 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:49,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:49,154 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:49,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:49,156 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:20:49,159 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:20:49,159 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:20:49,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,165 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2025-02-08 14:20:49,167 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:20:49,167 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:20:49,167 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:20:49,167 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~range~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~range~0#1 Supporting invariants [] [2025-02-08 14:20:49,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:49,173 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:20:49,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:49,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:20:49,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:20:49,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:49,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:49,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:49,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:49,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:49,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:49,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:20:49,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:49,218 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:49,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 55 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:49,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 55 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 115 transitions. Complement of second has 7 states. [2025-02-08 14:20:49,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:49,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2025-02-08 14:20:49,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-08 14:20:49,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:49,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 12 letters. [2025-02-08 14:20:49,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 115 transitions. [2025-02-08 14:20:49,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2025-02-08 14:20:49,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 77 states and 98 transitions. [2025-02-08 14:20:49,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2025-02-08 14:20:49,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2025-02-08 14:20:49,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 98 transitions. [2025-02-08 14:20:49,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:49,244 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 98 transitions. [2025-02-08 14:20:49,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 98 transitions. [2025-02-08 14:20:49,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2025-02-08 14:20:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.295774647887324) internal successors, (92), 70 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2025-02-08 14:20:49,246 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 92 transitions. [2025-02-08 14:20:49,246 INFO L432 stractBuchiCegarLoop]: Abstraction has 71 states and 92 transitions. [2025-02-08 14:20:49,246 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-02-08 14:20:49,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 92 transitions. [2025-02-08 14:20:49,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2025-02-08 14:20:49,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:49,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:49,247 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:49,247 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:49,247 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" [2025-02-08 14:20:49,247 INFO L754 eck$LassoCheckResult]: Loop: "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" [2025-02-08 14:20:49,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1104909531, now seen corresponding path program 1 times [2025-02-08 14:20:49,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:49,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132283680] [2025-02-08 14:20:49,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:49,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:49,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:49,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:49,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:49,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:49,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:49,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132283680] [2025-02-08 14:20:49,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132283680] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:49,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:49,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:20:49,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684830752] [2025-02-08 14:20:49,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:49,285 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:49,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1062119620, now seen corresponding path program 1 times [2025-02-08 14:20:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:49,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758094794] [2025-02-08 14:20:49,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:49,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:49,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:49,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:49,290 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:49,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:49,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:49,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:49,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:49,332 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:49,332 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:49,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:49,332 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:49,332 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:49,332 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,332 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:49,332 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:49,332 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration8_Loop [2025-02-08 14:20:49,332 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:49,332 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:49,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,385 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:49,385 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:49,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,388 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2025-02-08 14:20:49,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:49,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,403 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:49,404 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:49,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2025-02-08 14:20:49,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,413 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2025-02-08 14:20:49,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:49,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,436 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:49,436 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:49,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2025-02-08 14:20:49,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,446 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2025-02-08 14:20:49,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:49,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,466 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:49,466 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:49,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2025-02-08 14:20:49,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,478 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2025-02-08 14:20:49,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:49,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:49,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,498 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2025-02-08 14:20:49,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:49,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:49,624 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:49,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:49,630 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:49,630 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:49,630 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:49,630 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:49,630 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:49,630 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,630 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:49,630 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:49,630 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration8_Loop [2025-02-08 14:20:49,630 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:49,630 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:49,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:49,717 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:49,717 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,723 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2025-02-08 14:20:49,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:49,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:49,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:49,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:49,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:49,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:49,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:49,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:49,743 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:49,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2025-02-08 14:20:49,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,757 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2025-02-08 14:20:49,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:49,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:49,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:49,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:49,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:49,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:49,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:49,773 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:49,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2025-02-08 14:20:49,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,780 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2025-02-08 14:20:49,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:49,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:49,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:49,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:49,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:49,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:49,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:49,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:49,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2025-02-08 14:20:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,812 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2025-02-08 14:20:49,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:49,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:49,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:49,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:49,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:49,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:49,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:20:49,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:49,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:20:49,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:20:49,835 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:20:49,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:49,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:49,839 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:49,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2025-02-08 14:20:49,841 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:20:49,841 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:20:49,841 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:20:49,841 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-08 14:20:49,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:49,849 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:20:49,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:49,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:49,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:49,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:49,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:49,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:49,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:49,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:49,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:49,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:49,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:20:49,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:49,925 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:49,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 92 transitions. cyclomatic complexity: 26 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2025-02-08 14:20:49,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 92 transitions. cyclomatic complexity: 26. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Result 160 states and 213 transitions. Complement of second has 7 states. [2025-02-08 14:20:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:49,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2025-02-08 14:20:49,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2025-02-08 14:20:49,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:49,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 6 letters. [2025-02-08 14:20:49,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 12 letters. [2025-02-08 14:20:49,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:49,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 213 transitions. [2025-02-08 14:20:49,972 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 35 [2025-02-08 14:20:49,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 164 transitions. [2025-02-08 14:20:49,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2025-02-08 14:20:49,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2025-02-08 14:20:49,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 164 transitions. [2025-02-08 14:20:49,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:49,976 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 164 transitions. [2025-02-08 14:20:49,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 164 transitions. [2025-02-08 14:20:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 117. [2025-02-08 14:20:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 117 states have (on average 1.3247863247863247) internal successors, (155), 116 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:49,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 155 transitions. [2025-02-08 14:20:49,987 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 155 transitions. [2025-02-08 14:20:49,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:49,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:20:49,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:20:49,987 INFO L87 Difference]: Start difference. First operand 117 states and 155 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:50,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:50,035 INFO L93 Difference]: Finished difference Result 222 states and 283 transitions. [2025-02-08 14:20:50,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 283 transitions. [2025-02-08 14:20:50,036 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 80 [2025-02-08 14:20:50,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 217 states and 275 transitions. [2025-02-08 14:20:50,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2025-02-08 14:20:50,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2025-02-08 14:20:50,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 217 states and 275 transitions. [2025-02-08 14:20:50,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:50,039 INFO L218 hiAutomatonCegarLoop]: Abstraction has 217 states and 275 transitions. [2025-02-08 14:20:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states and 275 transitions. [2025-02-08 14:20:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 208. [2025-02-08 14:20:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 208 states have (on average 1.2788461538461537) internal successors, (266), 207 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 266 transitions. [2025-02-08 14:20:50,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 208 states and 266 transitions. [2025-02-08 14:20:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:20:50,051 INFO L432 stractBuchiCegarLoop]: Abstraction has 208 states and 266 transitions. [2025-02-08 14:20:50,051 INFO L338 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2025-02-08 14:20:50,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 266 transitions. [2025-02-08 14:20:50,052 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 78 [2025-02-08 14:20:50,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:50,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:50,053 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:50,053 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:20:50,053 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:50,053 INFO L754 eck$LassoCheckResult]: Loop: "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:50,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash 665606404, now seen corresponding path program 1 times [2025-02-08 14:20:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:50,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356315773] [2025-02-08 14:20:50,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:50,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:50,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:50,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356315773] [2025-02-08 14:20:50,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356315773] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:50,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811891644] [2025-02-08 14:20:50,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:50,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:50,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,077 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2025-02-08 14:20:50,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:50,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:50,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:50,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:20:50,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:50,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811891644] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:20:50,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:20:50,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-08 14:20:50,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487639164] [2025-02-08 14:20:50,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:20:50,126 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:50,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1034413991, now seen corresponding path program 2 times [2025-02-08 14:20:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986575344] [2025-02-08 14:20:50,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:50,128 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:50,132 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:50,132 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:20:50,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:50,132 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:50,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:50,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:50,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:50,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:50,194 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:50,194 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:50,194 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:50,194 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:50,194 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:20:50,194 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,194 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:50,194 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:50,194 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration9_Loop [2025-02-08 14:20:50,194 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:50,194 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:50,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,290 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:50,290 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:20:50,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,292 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2025-02-08 14:20:50,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:50,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:50,312 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:50,312 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:50,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,320 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2025-02-08 14:20:50,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:50,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:50,339 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:20:50,340 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:20:50,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,347 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2025-02-08 14:20:50,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:20:50,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:50,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,369 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2025-02-08 14:20:50,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:20:50,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:20:50,518 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:20:50,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,524 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:20:50,524 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:20:50,524 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:20:50,524 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:20:50,524 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:20:50,524 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,524 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:20:50,524 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:20:50,524 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration9_Loop [2025-02-08 14:20:50,524 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:20:50,524 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:20:50,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:20:50,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,686 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:20:50,686 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:20:50,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,691 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2025-02-08 14:20:50,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:50,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:50,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:50,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:20:50,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:50,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:20:50,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:20:50,723 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:20:50,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:50,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,737 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2025-02-08 14:20:50,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:20:50,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:20:50,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:20:50,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:20:50,756 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-08 14:20:50,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:20:50,758 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-08 14:20:50,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:20:50,760 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:20:50,766 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:20:50,766 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-08 14:20:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:20:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:50,772 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-08 14:20:50,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:20:50,773 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:20:50,773 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:20:50,773 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~range~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~range~0#1 Supporting invariants [] [2025-02-08 14:20:50,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2025-02-08 14:20:50,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2025-02-08 14:20:50,783 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:20:50,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:50,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:50,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:50,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:50,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:50,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:50,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:50,854 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:50,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:50,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 254 states and 316 transitions. Complement of second has 7 states. [2025-02-08 14:20:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:50,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2025-02-08 14:20:50,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:50,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:50,878 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:20:50,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:50,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:50,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:50,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:50,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:50,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:50,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:50,927 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:50,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:50,977 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 368 states and 448 transitions. Complement of second has 9 states. [2025-02-08 14:20:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2025-02-08 14:20:50,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:50,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:50,978 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:20:50,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:50,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:20:50,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:20:50,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:50,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:50,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:20:50,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:51,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:20:51,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:20:51,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:20:51,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:51,048 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:20:51,049 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:51,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 208 states and 266 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 319 states and 400 transitions. Complement of second has 8 states. [2025-02-08 14:20:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:20:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2025-02-08 14:20:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2025-02-08 14:20:51,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 10 letters. Loop has 6 letters. [2025-02-08 14:20:51,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:51,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 6 letters. [2025-02-08 14:20:51,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:51,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 10 letters. Loop has 12 letters. [2025-02-08 14:20:51,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:20:51,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 400 transitions. [2025-02-08 14:20:51,083 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2025-02-08 14:20:51,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 236 states and 298 transitions. [2025-02-08 14:20:51,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2025-02-08 14:20:51,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2025-02-08 14:20:51,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2025-02-08 14:20:51,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:51,085 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2025-02-08 14:20:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2025-02-08 14:20:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 174. [2025-02-08 14:20:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3103448275862069) internal successors, (228), 173 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 228 transitions. [2025-02-08 14:20:51,090 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 228 transitions. [2025-02-08 14:20:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:51,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:20:51,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:20:51,090 INFO L87 Difference]: Start difference. First operand 174 states and 228 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:51,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:51,176 INFO L93 Difference]: Finished difference Result 386 states and 489 transitions. [2025-02-08 14:20:51,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 386 states and 489 transitions. [2025-02-08 14:20:51,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2025-02-08 14:20:51,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 386 states to 370 states and 471 transitions. [2025-02-08 14:20:51,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2025-02-08 14:20:51,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 122 [2025-02-08 14:20:51,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 370 states and 471 transitions. [2025-02-08 14:20:51,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:51,182 INFO L218 hiAutomatonCegarLoop]: Abstraction has 370 states and 471 transitions. [2025-02-08 14:20:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states and 471 transitions. [2025-02-08 14:20:51,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 304. [2025-02-08 14:20:51,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 304 states have (on average 1.2828947368421053) internal successors, (390), 303 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 390 transitions. [2025-02-08 14:20:51,188 INFO L240 hiAutomatonCegarLoop]: Abstraction has 304 states and 390 transitions. [2025-02-08 14:20:51,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 14:20:51,189 INFO L432 stractBuchiCegarLoop]: Abstraction has 304 states and 390 transitions. [2025-02-08 14:20:51,189 INFO L338 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2025-02-08 14:20:51,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states and 390 transitions. [2025-02-08 14:20:51,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 83 [2025-02-08 14:20:51,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:51,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:51,192 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-08 14:20:51,192 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1] [2025-02-08 14:20:51,193 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:51,193 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:51,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1808114018, now seen corresponding path program 1 times [2025-02-08 14:20:51,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:51,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384547057] [2025-02-08 14:20:51,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:51,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:51,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:20:51,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:20:51,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:51,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384547057] [2025-02-08 14:20:51,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384547057] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013280385] [2025-02-08 14:20:51,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:51,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:51,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:51,251 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:51,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2025-02-08 14:20:51,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:20:51,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:20:51,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:20:51,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:51,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:20:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:51,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013280385] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:20:51,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:20:51,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-02-08 14:20:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771115188] [2025-02-08 14:20:51,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:20:51,346 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:51,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1289951949, now seen corresponding path program 1 times [2025-02-08 14:20:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478529029] [2025-02-08 14:20:51,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:51,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 14:20:51,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 14:20:51,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:20:51,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:51,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478529029] [2025-02-08 14:20:51,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478529029] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:51,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898416139] [2025-02-08 14:20:51,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:51,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:51,509 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:51,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2025-02-08 14:20:51,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 14:20:51,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 14:20:51,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 14:20:51,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:20:51,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:20:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:20:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898416139] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:20:51,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:20:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2025-02-08 14:20:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223422715] [2025-02-08 14:20:51,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:20:51,617 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:20:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:51,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:20:51,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:20:51,618 INFO L87 Difference]: Start difference. First operand 304 states and 390 transitions. cyclomatic complexity: 104 Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:51,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2025-02-08 14:20:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:51,879 INFO L93 Difference]: Finished difference Result 944 states and 1180 transitions. [2025-02-08 14:20:51,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 944 states and 1180 transitions. [2025-02-08 14:20:51,887 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2025-02-08 14:20:51,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 944 states to 910 states and 1143 transitions. [2025-02-08 14:20:51,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 335 [2025-02-08 14:20:51,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 335 [2025-02-08 14:20:51,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 910 states and 1143 transitions. [2025-02-08 14:20:51,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:51,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 910 states and 1143 transitions. [2025-02-08 14:20:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states and 1143 transitions. [2025-02-08 14:20:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 548. [2025-02-08 14:20:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 548 states have (on average 1.281021897810219) internal successors, (702), 547 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 702 transitions. [2025-02-08 14:20:51,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 548 states and 702 transitions. [2025-02-08 14:20:51,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 14:20:51,917 INFO L432 stractBuchiCegarLoop]: Abstraction has 548 states and 702 transitions. [2025-02-08 14:20:51,917 INFO L338 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2025-02-08 14:20:51,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 548 states and 702 transitions. [2025-02-08 14:20:51,919 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 177 [2025-02-08 14:20:51,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:51,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:51,919 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 3, 3, 3, 2, 1, 1] [2025-02-08 14:20:51,919 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:51,920 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:51,920 INFO L754 eck$LassoCheckResult]: Loop: "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(main_~i~0#1 == main_~range~0#1);" [2025-02-08 14:20:51,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2040461070, now seen corresponding path program 1 times [2025-02-08 14:20:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440444798] [2025-02-08 14:20:51,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:51,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 14:20:51,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 14:20:51,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-08 14:20:51,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:51,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440444798] [2025-02-08 14:20:51,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440444798] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:51,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:20:51,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:20:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767682505] [2025-02-08 14:20:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:51,957 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:51,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 999391371, now seen corresponding path program 2 times [2025-02-08 14:20:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233616331] [2025-02-08 14:20:51,958 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:51,960 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 2 equivalence classes. [2025-02-08 14:20:51,961 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:51,961 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:20:51,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:51,962 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:51,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:20:51,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:51,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:51,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:51,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:52,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:20:52,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:20:52,014 INFO L87 Difference]: Start difference. First operand 548 states and 702 transitions. cyclomatic complexity: 174 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:52,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:52,042 INFO L93 Difference]: Finished difference Result 536 states and 631 transitions. [2025-02-08 14:20:52,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 536 states and 631 transitions. [2025-02-08 14:20:52,046 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 177 [2025-02-08 14:20:52,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 536 states to 523 states and 613 transitions. [2025-02-08 14:20:52,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2025-02-08 14:20:52,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2025-02-08 14:20:52,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 523 states and 613 transitions. [2025-02-08 14:20:52,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:52,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 523 states and 613 transitions. [2025-02-08 14:20:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states and 613 transitions. [2025-02-08 14:20:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 507. [2025-02-08 14:20:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 507 states have (on average 1.1775147928994083) internal successors, (597), 506 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:52,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 597 transitions. [2025-02-08 14:20:52,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 507 states and 597 transitions. [2025-02-08 14:20:52,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:20:52,060 INFO L432 stractBuchiCegarLoop]: Abstraction has 507 states and 597 transitions. [2025-02-08 14:20:52,060 INFO L338 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2025-02-08 14:20:52,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 507 states and 597 transitions. [2025-02-08 14:20:52,062 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 176 [2025-02-08 14:20:52,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:52,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:52,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 5, 3, 3, 1, 1, 1] [2025-02-08 14:20:52,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:52,063 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:52,063 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:52,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1634940623, now seen corresponding path program 2 times [2025-02-08 14:20:52,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:52,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543330030] [2025-02-08 14:20:52,064 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:52,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:52,067 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-08 14:20:52,071 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 14:20:52,071 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:20:52,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 14:20:52,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:52,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543330030] [2025-02-08 14:20:52,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543330030] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:52,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810979840] [2025-02-08 14:20:52,160 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:20:52,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:52,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:52,165 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:52,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2025-02-08 14:20:52,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-08 14:20:52,200 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 14:20:52,200 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:20:52,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:52,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 14:20:52,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 14:20:52,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:20:52,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810979840] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:20:52,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:20:52,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 14 [2025-02-08 14:20:52,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106716207] [2025-02-08 14:20:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:20:52,284 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:52,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:52,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1574342857, now seen corresponding path program 3 times [2025-02-08 14:20:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:52,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417529944] [2025-02-08 14:20:52,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:20:52,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:52,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 2 equivalence classes. [2025-02-08 14:20:52,289 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:52,289 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 14:20:52,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:52,289 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:52,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:20:52,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:52,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:52,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:52,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:52,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:20:52,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-02-08 14:20:52,340 INFO L87 Difference]: Start difference. First operand 507 states and 597 transitions. cyclomatic complexity: 110 Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:52,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:52,379 INFO L93 Difference]: Finished difference Result 653 states and 717 transitions. [2025-02-08 14:20:52,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 653 states and 717 transitions. [2025-02-08 14:20:52,382 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2025-02-08 14:20:52,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 653 states to 646 states and 710 transitions. [2025-02-08 14:20:52,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2025-02-08 14:20:52,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2025-02-08 14:20:52,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 646 states and 710 transitions. [2025-02-08 14:20:52,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:52,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 646 states and 710 transitions. [2025-02-08 14:20:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states and 710 transitions. [2025-02-08 14:20:52,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 527. [2025-02-08 14:20:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 527 states have (on average 1.1157495256166983) internal successors, (588), 526 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 588 transitions. [2025-02-08 14:20:52,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 527 states and 588 transitions. [2025-02-08 14:20:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:20:52,392 INFO L432 stractBuchiCegarLoop]: Abstraction has 527 states and 588 transitions. [2025-02-08 14:20:52,392 INFO L338 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2025-02-08 14:20:52,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 527 states and 588 transitions. [2025-02-08 14:20:52,394 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2025-02-08 14:20:52,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:52,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:52,394 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2025-02-08 14:20:52,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:52,395 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:52,395 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:52,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:52,395 INFO L85 PathProgramCache]: Analyzing trace with hash -83962099, now seen corresponding path program 3 times [2025-02-08 14:20:52,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:52,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543684676] [2025-02-08 14:20:52,395 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:20:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:52,398 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 7 equivalence classes. [2025-02-08 14:20:52,400 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 33 of 39 statements. [2025-02-08 14:20:52,400 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:20:52,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:20:52,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:52,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543684676] [2025-02-08 14:20:52,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543684676] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:52,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475715314] [2025-02-08 14:20:52,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:20:52,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:52,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:52,460 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:52,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2025-02-08 14:20:52,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 7 equivalence classes. [2025-02-08 14:20:52,484 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 33 of 39 statements. [2025-02-08 14:20:52,484 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:20:52,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:52,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 14:20:52,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:20:52,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:20:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:20:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475715314] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:20:52,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:20:52,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-02-08 14:20:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586955932] [2025-02-08 14:20:52,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:20:52,642 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:52,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1574342857, now seen corresponding path program 4 times [2025-02-08 14:20:52,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:52,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484057089] [2025-02-08 14:20:52,642 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:20:52,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:52,644 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 12 statements into 2 equivalence classes. [2025-02-08 14:20:52,645 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:52,645 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:20:52,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:52,645 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:52,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:20:52,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:52,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:52,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:52,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:52,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:52,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 14:20:52,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-02-08 14:20:52,694 INFO L87 Difference]: Start difference. First operand 527 states and 588 transitions. cyclomatic complexity: 83 Second operand has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:53,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:53,212 INFO L93 Difference]: Finished difference Result 2578 states and 2727 transitions. [2025-02-08 14:20:53,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2578 states and 2727 transitions. [2025-02-08 14:20:53,226 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 382 [2025-02-08 14:20:53,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2578 states to 2418 states and 2567 transitions. [2025-02-08 14:20:53,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 789 [2025-02-08 14:20:53,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 789 [2025-02-08 14:20:53,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2418 states and 2567 transitions. [2025-02-08 14:20:53,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:53,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2418 states and 2567 transitions. [2025-02-08 14:20:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states and 2567 transitions. [2025-02-08 14:20:53,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 1965. [2025-02-08 14:20:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1965 states have (on average 1.0712468193384224) internal successors, (2105), 1964 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2105 transitions. [2025-02-08 14:20:53,267 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1965 states and 2105 transitions. [2025-02-08 14:20:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-02-08 14:20:53,268 INFO L432 stractBuchiCegarLoop]: Abstraction has 1965 states and 2105 transitions. [2025-02-08 14:20:53,268 INFO L338 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2025-02-08 14:20:53,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1965 states and 2105 transitions. [2025-02-08 14:20:53,277 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 274 [2025-02-08 14:20:53,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:53,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:53,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [13, 12, 12, 12, 11, 11, 1, 1, 1, 1] [2025-02-08 14:20:53,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:53,278 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:53,279 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:53,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 351188399, now seen corresponding path program 4 times [2025-02-08 14:20:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249029744] [2025-02-08 14:20:53,279 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:20:53,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:53,283 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-02-08 14:20:53,293 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 14:20:53,293 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:20:53,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:53,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:20:53,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249029744] [2025-02-08 14:20:53,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249029744] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:20:53,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116115055] [2025-02-08 14:20:53,555 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:20:53,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:20:53,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:20:53,561 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:20:53,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2025-02-08 14:20:53,586 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 75 statements into 2 equivalence classes. [2025-02-08 14:20:53,607 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 14:20:53,607 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:20:53,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:20:53,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-08 14:20:53,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:20:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:53,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:20:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:20:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116115055] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:20:53,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:20:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 22 [2025-02-08 14:20:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471957430] [2025-02-08 14:20:53,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:20:53,986 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:20:53,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:53,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1574342857, now seen corresponding path program 5 times [2025-02-08 14:20:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:53,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151408867] [2025-02-08 14:20:53,986 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:20:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:53,988 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 12 statements into 2 equivalence classes. [2025-02-08 14:20:53,989 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:53,989 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:20:53,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:53,990 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:53,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:20:53,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:53,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:53,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:53,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:54,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:20:54,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 14:20:54,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=316, Unknown=0, NotChecked=0, Total=552 [2025-02-08 14:20:54,045 INFO L87 Difference]: Start difference. First operand 1965 states and 2105 transitions. cyclomatic complexity: 191 Second operand has 24 states, 23 states have (on average 5.3478260869565215) internal successors, (123), 23 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:20:54,779 INFO L93 Difference]: Finished difference Result 9798 states and 10274 transitions. [2025-02-08 14:20:54,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9798 states and 10274 transitions. [2025-02-08 14:20:54,849 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 1755 [2025-02-08 14:20:54,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9798 states to 9522 states and 9998 transitions. [2025-02-08 14:20:54,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3890 [2025-02-08 14:20:54,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3890 [2025-02-08 14:20:54,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9522 states and 9998 transitions. [2025-02-08 14:20:54,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:20:54,943 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9522 states and 9998 transitions. [2025-02-08 14:20:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9522 states and 9998 transitions. [2025-02-08 14:20:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9522 to 3789. [2025-02-08 14:20:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 3789 states have (on average 1.0591185009237265) internal successors, (4013), 3788 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:20:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 4013 transitions. [2025-02-08 14:20:54,988 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3789 states and 4013 transitions. [2025-02-08 14:20:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-02-08 14:20:54,989 INFO L432 stractBuchiCegarLoop]: Abstraction has 3789 states and 4013 transitions. [2025-02-08 14:20:54,989 INFO L338 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2025-02-08 14:20:54,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3789 states and 4013 transitions. [2025-02-08 14:20:54,995 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 748 [2025-02-08 14:20:54,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:20:54,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:20:54,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [21, 20, 20, 20, 19, 19, 1, 1, 1, 1] [2025-02-08 14:20:54,997 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:20:54,998 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume !(main_~i~0#1 == main_~range~0#1);" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1;" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:54,998 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 == main_~range~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !(0 == main_~up~0#1);" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume !(0 == main_~i~0#1);" "assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0;" "assume !(1 == main_~up~0#1);" "assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 == main_~range~0#1 - 2);" "assume 0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" [2025-02-08 14:20:54,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1742540935, now seen corresponding path program 5 times [2025-02-08 14:20:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:54,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398959046] [2025-02-08 14:20:54,998 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:20:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:55,003 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 123 statements into 21 equivalence classes. [2025-02-08 14:20:55,021 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 14:20:55,021 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2025-02-08 14:20:55,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:55,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-08 14:20:55,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 14:20:55,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:55,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:55,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1574342857, now seen corresponding path program 6 times [2025-02-08 14:20:55,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:55,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148543509] [2025-02-08 14:20:55,039 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:20:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:55,040 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 12 statements into 2 equivalence classes. [2025-02-08 14:20:55,042 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:55,042 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 14:20:55,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,042 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:55,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:20:55,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:20:55,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:55,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:55,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:20:55,045 INFO L85 PathProgramCache]: Analyzing trace with hash 797173437, now seen corresponding path program 1 times [2025-02-08 14:20:55,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:20:55,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034603968] [2025-02-08 14:20:55,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:20:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:20:55,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-08 14:20:55,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-08 14:20:55,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:55,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,057 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:55,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-08 14:20:55,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-08 14:20:55,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:55,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:55,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:20:56,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-08 14:20:56,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 14:20:56,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:56,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:56,018 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:20:56,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-08 14:20:56,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 14:20:56,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:20:56,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:20:56,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:20:56 BoogieIcfgContainer [2025-02-08 14:20:56,092 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:20:56,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:20:56,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:20:56,093 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:20:56,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:20:45" (3/4) ... [2025-02-08 14:20:56,094 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-08 14:20:56,146 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:20:56,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:20:56,148 INFO L158 Benchmark]: Toolchain (without parser) took 11408.91ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 130.0MB in the beginning and 49.2MB in the end (delta: 80.8MB). Peak memory consumption was 126.9MB. Max. memory is 16.1GB. [2025-02-08 14:20:56,148 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:20:56,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.47ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 119.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:20:56,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.77ms. 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. [2025-02-08 14:20:56,148 INFO L158 Benchmark]: Boogie Preprocessor took 12.76ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 118.3MB in the end (delta: 414.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:20:56,148 INFO L158 Benchmark]: IcfgBuilder took 166.08ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 108.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:20:56,149 INFO L158 Benchmark]: BuchiAutomizer took 11010.72ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 108.1MB in the beginning and 57.5MB in the end (delta: 50.6MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2025-02-08 14:20:56,149 INFO L158 Benchmark]: Witness Printer took 53.40ms. Allocated memory is still 218.1MB. Free memory was 57.5MB in the beginning and 49.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:20:56,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.47ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 119.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.77ms. 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 12.76ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 118.3MB in the end (delta: 414.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 166.08ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 108.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 11010.72ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 108.1MB in the beginning and 57.5MB in the end (delta: 50.6MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. * Witness Printer took 53.40ms. Allocated memory is still 218.1MB. Free memory was 57.5MB in the beginning and 49.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 17 terminating modules (12 trivial, 4 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function ((long) -1 * i) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + range) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * i) + range) and consists of 4 locations. 12 modules have a trivial ranking function, the largest among these consists of 24 locations. The remainder module has 3789 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 15 iterations. TraceHistogramMax:21. Analysis of lassos took 7.7s. Construction of modules took 0.7s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 15. Automata minimization 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 6951 StatesRemovedByMinimization, 15 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 765 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 758 mSDsluCounter, 422 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 238 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1144 IncrementalHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 184 mSDtfsCounter, 1144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc2 concLT1 SILN4 SILU0 SILI1 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax143 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf97 smp72 dnf138 smp87 tf108 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int range; [L8] int up; [L9] i = __VERIFIER_nondet_int() [L10] range = 20 [L11] up = 0 VAL [range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=20, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=20, range=20, up=0] [L17] COND TRUE i == range [L18] up = 0 VAL [i=20, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=20, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=19, range=20, up=0] [L26] COND FALSE !(i == range-2) VAL [i=19, range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=19, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=19, range=20, up=0] [L17] COND FALSE !(i == range) VAL [i=19, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=19, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=18, range=20, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=18, range=19, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=18, range=19, up=0] [L14] COND FALSE !(i == 0) VAL [i=18, range=19, up=0] [L17] COND FALSE !(i == range) VAL [i=18, range=19, up=0] [L20] COND FALSE !(up == 1) VAL [i=18, range=19, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=17, range=19, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=17, range=18, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=17, range=18, up=0] [L14] COND FALSE !(i == 0) VAL [i=17, range=18, up=0] [L17] COND FALSE !(i == range) VAL [i=17, range=18, up=0] [L20] COND FALSE !(up == 1) VAL [i=17, range=18, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=16, range=18, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=16, range=17, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=16, range=17, up=0] [L14] COND FALSE !(i == 0) VAL [i=16, range=17, up=0] [L17] COND FALSE !(i == range) VAL [i=16, range=17, up=0] [L20] COND FALSE !(up == 1) VAL [i=16, range=17, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=15, range=17, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=15, range=16, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=15, range=16, up=0] [L14] COND FALSE !(i == 0) VAL [i=15, range=16, up=0] [L17] COND FALSE !(i == range) VAL [i=15, range=16, up=0] [L20] COND FALSE !(up == 1) VAL [i=15, range=16, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=14, range=16, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=14, range=15, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=14, range=15, up=0] [L14] COND FALSE !(i == 0) VAL [i=14, range=15, up=0] [L17] COND FALSE !(i == range) VAL [i=14, range=15, up=0] [L20] COND FALSE !(up == 1) VAL [i=14, range=15, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=13, range=15, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=13, range=14, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=13, range=14, up=0] [L14] COND FALSE !(i == 0) VAL [i=13, range=14, up=0] [L17] COND FALSE !(i == range) VAL [i=13, range=14, up=0] [L20] COND FALSE !(up == 1) VAL [i=13, range=14, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=12, range=14, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=12, range=13, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=12, range=13, up=0] [L14] COND FALSE !(i == 0) VAL [i=12, range=13, up=0] [L17] COND FALSE !(i == range) VAL [i=12, range=13, up=0] [L20] COND FALSE !(up == 1) VAL [i=12, range=13, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=11, range=13, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=11, range=12, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=11, range=12, up=0] [L14] COND FALSE !(i == 0) VAL [i=11, range=12, up=0] [L17] COND FALSE !(i == range) VAL [i=11, range=12, up=0] [L20] COND FALSE !(up == 1) VAL [i=11, range=12, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=10, range=12, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=10, range=11, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=10, range=11, up=0] [L14] COND FALSE !(i == 0) VAL [i=10, range=11, up=0] [L17] COND FALSE !(i == range) VAL [i=10, range=11, up=0] [L20] COND FALSE !(up == 1) VAL [i=10, range=11, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=9, range=11, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=9, range=10, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=9, range=10, up=0] [L14] COND FALSE !(i == 0) VAL [i=9, range=10, up=0] [L17] COND FALSE !(i == range) VAL [i=9, range=10, up=0] [L20] COND FALSE !(up == 1) VAL [i=9, range=10, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=8, range=10, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=8, range=9, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=8, range=9, up=0] [L14] COND FALSE !(i == 0) VAL [i=8, range=9, up=0] [L17] COND FALSE !(i == range) VAL [i=8, range=9, up=0] [L20] COND FALSE !(up == 1) VAL [i=8, range=9, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=7, range=9, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=7, range=8, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=7, range=8, up=0] [L14] COND FALSE !(i == 0) VAL [i=7, range=8, up=0] [L17] COND FALSE !(i == range) VAL [i=7, range=8, up=0] [L20] COND FALSE !(up == 1) VAL [i=7, range=8, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=6, range=8, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=6, range=7, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=6, range=7, up=0] [L14] COND FALSE !(i == 0) VAL [i=6, range=7, up=0] [L17] COND FALSE !(i == range) VAL [i=6, range=7, up=0] [L20] COND FALSE !(up == 1) VAL [i=6, range=7, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=5, range=7, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=5, range=6, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=5, range=6, up=0] [L14] COND FALSE !(i == 0) VAL [i=5, range=6, up=0] [L17] COND FALSE !(i == range) VAL [i=5, range=6, up=0] [L20] COND FALSE !(up == 1) VAL [i=5, range=6, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=4, range=6, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=4, range=5, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=4, range=5, up=0] [L14] COND FALSE !(i == 0) VAL [i=4, range=5, up=0] [L17] COND FALSE !(i == range) VAL [i=4, range=5, up=0] [L20] COND FALSE !(up == 1) VAL [i=4, range=5, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=3, range=5, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=3, range=4, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=3, range=4, up=0] [L14] COND FALSE !(i == 0) VAL [i=3, range=4, up=0] [L17] COND FALSE !(i == range) VAL [i=3, range=4, up=0] [L20] COND FALSE !(up == 1) VAL [i=3, range=4, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=2, range=4, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=2, range=3, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=2, range=3, up=0] [L14] COND FALSE !(i == 0) VAL [i=2, range=3, up=0] [L17] COND FALSE !(i == range) VAL [i=2, range=3, up=0] [L20] COND FALSE !(up == 1) VAL [i=2, range=3, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=1, range=3, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=1, range=2, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=1, range=2, up=0] [L14] COND FALSE !(i == 0) VAL [i=1, range=2, up=0] [L17] COND FALSE !(i == range) VAL [i=1, range=2, up=0] [L20] COND FALSE !(up == 1) VAL [i=1, range=2, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=0, range=2, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=0, range=1, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=0, range=1, up=0] [L14] COND TRUE i == 0 [L15] up = 1 VAL [i=0, range=1, up=1] Loop: [L17] COND FALSE !(i == range) [L20] COND TRUE up == 1 [L21] i = i+1 [L23] COND FALSE !(up == 0) [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND FALSE !(i == 0) [L17] COND TRUE i == range [L18] up = 0 [L20] COND FALSE !(up == 1) [L23] COND TRUE up == 0 [L24] i = i-1 [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND TRUE i == 0 [L15] up = 1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int range; [L8] int up; [L9] i = __VERIFIER_nondet_int() [L10] range = 20 [L11] up = 0 VAL [range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=20, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=20, range=20, up=0] [L17] COND TRUE i == range [L18] up = 0 VAL [i=20, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=20, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=19, range=20, up=0] [L26] COND FALSE !(i == range-2) VAL [i=19, range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=19, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=19, range=20, up=0] [L17] COND FALSE !(i == range) VAL [i=19, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=19, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=18, range=20, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=18, range=19, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=18, range=19, up=0] [L14] COND FALSE !(i == 0) VAL [i=18, range=19, up=0] [L17] COND FALSE !(i == range) VAL [i=18, range=19, up=0] [L20] COND FALSE !(up == 1) VAL [i=18, range=19, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=17, range=19, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=17, range=18, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=17, range=18, up=0] [L14] COND FALSE !(i == 0) VAL [i=17, range=18, up=0] [L17] COND FALSE !(i == range) VAL [i=17, range=18, up=0] [L20] COND FALSE !(up == 1) VAL [i=17, range=18, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=16, range=18, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=16, range=17, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=16, range=17, up=0] [L14] COND FALSE !(i == 0) VAL [i=16, range=17, up=0] [L17] COND FALSE !(i == range) VAL [i=16, range=17, up=0] [L20] COND FALSE !(up == 1) VAL [i=16, range=17, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=15, range=17, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=15, range=16, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=15, range=16, up=0] [L14] COND FALSE !(i == 0) VAL [i=15, range=16, up=0] [L17] COND FALSE !(i == range) VAL [i=15, range=16, up=0] [L20] COND FALSE !(up == 1) VAL [i=15, range=16, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=14, range=16, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=14, range=15, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=14, range=15, up=0] [L14] COND FALSE !(i == 0) VAL [i=14, range=15, up=0] [L17] COND FALSE !(i == range) VAL [i=14, range=15, up=0] [L20] COND FALSE !(up == 1) VAL [i=14, range=15, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=13, range=15, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=13, range=14, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=13, range=14, up=0] [L14] COND FALSE !(i == 0) VAL [i=13, range=14, up=0] [L17] COND FALSE !(i == range) VAL [i=13, range=14, up=0] [L20] COND FALSE !(up == 1) VAL [i=13, range=14, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=12, range=14, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=12, range=13, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=12, range=13, up=0] [L14] COND FALSE !(i == 0) VAL [i=12, range=13, up=0] [L17] COND FALSE !(i == range) VAL [i=12, range=13, up=0] [L20] COND FALSE !(up == 1) VAL [i=12, range=13, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=11, range=13, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=11, range=12, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=11, range=12, up=0] [L14] COND FALSE !(i == 0) VAL [i=11, range=12, up=0] [L17] COND FALSE !(i == range) VAL [i=11, range=12, up=0] [L20] COND FALSE !(up == 1) VAL [i=11, range=12, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=10, range=12, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=10, range=11, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=10, range=11, up=0] [L14] COND FALSE !(i == 0) VAL [i=10, range=11, up=0] [L17] COND FALSE !(i == range) VAL [i=10, range=11, up=0] [L20] COND FALSE !(up == 1) VAL [i=10, range=11, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=9, range=11, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=9, range=10, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=9, range=10, up=0] [L14] COND FALSE !(i == 0) VAL [i=9, range=10, up=0] [L17] COND FALSE !(i == range) VAL [i=9, range=10, up=0] [L20] COND FALSE !(up == 1) VAL [i=9, range=10, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=8, range=10, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=8, range=9, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=8, range=9, up=0] [L14] COND FALSE !(i == 0) VAL [i=8, range=9, up=0] [L17] COND FALSE !(i == range) VAL [i=8, range=9, up=0] [L20] COND FALSE !(up == 1) VAL [i=8, range=9, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=7, range=9, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=7, range=8, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=7, range=8, up=0] [L14] COND FALSE !(i == 0) VAL [i=7, range=8, up=0] [L17] COND FALSE !(i == range) VAL [i=7, range=8, up=0] [L20] COND FALSE !(up == 1) VAL [i=7, range=8, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=6, range=8, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=6, range=7, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=6, range=7, up=0] [L14] COND FALSE !(i == 0) VAL [i=6, range=7, up=0] [L17] COND FALSE !(i == range) VAL [i=6, range=7, up=0] [L20] COND FALSE !(up == 1) VAL [i=6, range=7, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=5, range=7, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=5, range=6, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=5, range=6, up=0] [L14] COND FALSE !(i == 0) VAL [i=5, range=6, up=0] [L17] COND FALSE !(i == range) VAL [i=5, range=6, up=0] [L20] COND FALSE !(up == 1) VAL [i=5, range=6, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=4, range=6, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=4, range=5, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=4, range=5, up=0] [L14] COND FALSE !(i == 0) VAL [i=4, range=5, up=0] [L17] COND FALSE !(i == range) VAL [i=4, range=5, up=0] [L20] COND FALSE !(up == 1) VAL [i=4, range=5, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=3, range=5, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=3, range=4, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=3, range=4, up=0] [L14] COND FALSE !(i == 0) VAL [i=3, range=4, up=0] [L17] COND FALSE !(i == range) VAL [i=3, range=4, up=0] [L20] COND FALSE !(up == 1) VAL [i=3, range=4, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=2, range=4, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=2, range=3, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=2, range=3, up=0] [L14] COND FALSE !(i == 0) VAL [i=2, range=3, up=0] [L17] COND FALSE !(i == range) VAL [i=2, range=3, up=0] [L20] COND FALSE !(up == 1) VAL [i=2, range=3, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=1, range=3, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=1, range=2, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=1, range=2, up=0] [L14] COND FALSE !(i == 0) VAL [i=1, range=2, up=0] [L17] COND FALSE !(i == range) VAL [i=1, range=2, up=0] [L20] COND FALSE !(up == 1) VAL [i=1, range=2, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=0, range=2, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=0, range=1, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=0, range=1, up=0] [L14] COND TRUE i == 0 [L15] up = 1 VAL [i=0, range=1, up=1] Loop: [L17] COND FALSE !(i == range) [L20] COND TRUE up == 1 [L21] i = i+1 [L23] COND FALSE !(up == 0) [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND FALSE !(i == 0) [L17] COND TRUE i == range [L18] up = 0 [L20] COND FALSE !(up == 1) [L23] COND TRUE up == 0 [L24] i = i-1 [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND TRUE i == 0 [L15] up = 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-08 14:20:56,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:56,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2025-02-08 14:20:56,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2025-02-08 14:20:56,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2025-02-08 14:20:56,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2025-02-08 14:20:57,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2025-02-08 14:20:57,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)