./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.08.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/c.08.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 e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:21:34,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:21:34,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:21:34,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:21:34,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:21:34,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:21:34,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:21:34,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:21:34,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:21:34,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:21:34,810 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:21:34,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:21:34,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:21:34,811 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:21:34,812 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:21:34,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:21:34,812 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:21:34,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:21:34,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:21:34,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:21:34,814 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:21:34,814 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 -> e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 [2025-02-08 14:21:35,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:21:35,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:21:35,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:21:35,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:21:35,048 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:21:35,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.08.c [2025-02-08 14:21:36,144 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/427948229/464f0c8eb75841d6b955962b620e183b/FLAG9f2dddd20 [2025-02-08 14:21:36,361 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:21:36,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c [2025-02-08 14:21:36,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/427948229/464f0c8eb75841d6b955962b620e183b/FLAG9f2dddd20 [2025-02-08 14:21:36,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/427948229/464f0c8eb75841d6b955962b620e183b [2025-02-08 14:21:36,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:21:36,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:21:36,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:36,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:21:36,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:21:36,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59aed29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36, skipping insertion in model container [2025-02-08 14:21:36,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:21:36,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:36,818 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:21:36,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:36,835 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:21:36,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36 WrapperNode [2025-02-08 14:21:36,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:36,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:36,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:21:36,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:21:36,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,852 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2025-02-08 14:21:36,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:36,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:21:36,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:21:36,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:21:36,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,862 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:21:36,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,864 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:21:36,866 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:21:36,867 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:21:36,867 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:21:36,868 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (1/1) ... [2025-02-08 14:21:36,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,896 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 14:21:36,902 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 14:21:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:21:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:21:36,964 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:21:36,965 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:21:37,020 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-02-08 14:21:37,020 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:21:37,025 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:21:37,025 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:21:37,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:37 BoogieIcfgContainer [2025-02-08 14:21:37,026 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:21:37,026 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:21:37,026 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:21:37,030 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:21:37,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:37,030 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:21:36" (1/3) ... [2025-02-08 14:21:37,031 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dcad372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:37, skipping insertion in model container [2025-02-08 14:21:37,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:37,031 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:36" (2/3) ... [2025-02-08 14:21:37,031 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dcad372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:37, skipping insertion in model container [2025-02-08 14:21:37,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:37,032 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:37" (3/3) ... [2025-02-08 14:21:37,033 INFO L363 chiAutomizerObserver]: Analyzing ICFG c.08.c [2025-02-08 14:21:37,074 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:21:37,074 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:21:37,074 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:21:37,075 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:21:37,075 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:21:37,075 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:21:37,075 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:21:37,075 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:21:37,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:37,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:37,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:37,093 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:37,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:37,093 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:21:37,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:37,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:37,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:37,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:37,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:37,099 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" [2025-02-08 14:21:37,099 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 >= 0;main_~j~0#1 := 0;" "assume !(main_~j~0#1 <= main_~i~0#1 - 1);main_~i~0#1 := main_~i~0#1 - 1;" [2025-02-08 14:21:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-08 14:21:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178404083] [2025-02-08 14:21:37,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:37,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:37,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,159 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:37,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:37,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1055, now seen corresponding path program 1 times [2025-02-08 14:21:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469626085] [2025-02-08 14:21:37,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,190 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash 33729, now seen corresponding path program 1 times [2025-02-08 14:21:37,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660673085] [2025-02-08 14:21:37,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:37,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:37,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,206 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:37,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:37,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,267 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:37,267 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:37,268 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:37,268 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:37,268 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:37,268 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,268 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:37,268 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:37,268 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2025-02-08 14:21:37,268 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:37,269 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:37,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,354 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:37,355 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:37,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,358 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 14:21:37,360 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 14:21:37,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,383 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,383 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:37,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:37,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,395 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 14:21:37,396 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 14:21:37,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,414 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,415 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:37,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-08 14:21:37,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,422 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 14:21:37,424 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 14:21:37,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,436 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,436 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:37,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-08 14:21:37,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,443 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 14:21:37,444 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 14:21:37,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,463 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 14:21:37,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,468 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 14:21:37,473 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 14:21:37,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:37,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,489 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:37,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:37,495 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:37,495 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:37,495 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:37,495 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:37,495 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:37,495 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,495 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:37,495 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:37,495 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2025-02-08 14:21:37,495 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:37,495 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:37,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,557 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:37,561 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:37,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,564 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 14:21:37,565 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 14:21:37,566 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 14:21:37,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:37,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:37,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:37,593 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 14:21:37,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,595 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 14:21:37,596 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 14:21:37,597 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 14:21:37,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:37,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:37,613 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:37,620 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 14:21:37,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,621 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 14:21:37,623 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 14:21:37,624 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 14:21:37,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:37,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:37,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:37,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:37,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-08 14:21:37,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,648 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 14:21:37,648 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 14:21:37,649 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 14:21:37,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:37,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:37,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:37,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:37,664 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:21:37,665 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-08 14:21:37,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,669 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 14:21:37,671 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 14:21:37,671 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:37,671 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:37,671 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:37,672 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2025-02-08 14:21:37,677 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 14:21:37,679 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:37,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:37,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:37,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:37,710 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:37,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:37,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:37,718 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:37,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:37,734 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 14:21:37,751 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:21:37,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,782 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 12 transitions. Complement of second has 5 states. [2025-02-08 14:21:37,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2025-02-08 14:21:37,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:21:37,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:21:37,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-08 14:21:37,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 12 transitions. [2025-02-08 14:21:37,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:37,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 6 states and 9 transitions. [2025-02-08 14:21:37,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2025-02-08 14:21:37,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-08 14:21:37,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2025-02-08 14:21:37,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:37,796 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-02-08 14:21:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2025-02-08 14:21:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2025-02-08 14:21:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2025-02-08 14:21:37,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 8 transitions. [2025-02-08 14:21:37,813 INFO L432 stractBuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2025-02-08 14:21:37,813 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:21:37,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2025-02-08 14:21:37,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:37,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:37,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:37,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:21:37,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:21:37,815 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~i~0#1 >= 0;main_~j~0#1 := 0;" [2025-02-08 14:21:37,816 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1;" [2025-02-08 14:21:37,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1088, now seen corresponding path program 1 times [2025-02-08 14:21:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019267388] [2025-02-08 14:21:37,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,822 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,825 INFO L85 PathProgramCache]: Analyzing trace with hash 33, now seen corresponding path program 1 times [2025-02-08 14:21:37,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383573116] [2025-02-08 14:21:37,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:37,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:37,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,828 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:37,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:37,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,831 INFO L85 PathProgramCache]: Analyzing trace with hash 33730, now seen corresponding path program 1 times [2025-02-08 14:21:37,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118512741] [2025-02-08 14:21:37,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:37,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:37,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,835 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:37,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:37,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,864 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:37,864 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:37,864 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:37,864 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:37,864 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:37,864 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,864 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:37,864 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:37,864 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2025-02-08 14:21:37,864 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:37,864 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:37,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,909 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:37,909 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:37,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,912 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 14:21:37,913 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 14:21:37,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,936 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,937 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 14:21:37,942 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 14:21:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,945 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 14:21:37,948 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 14:21:37,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,967 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,967 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 14:21:37,973 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 14:21:37,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,976 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 14:21:37,981 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 14:21:37,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:38,000 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 14:21:38,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,002 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 14:21:38,007 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 14:21:38,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:38,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:38,077 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:38,082 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 14:21:38,082 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:38,082 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:38,082 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:38,082 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:38,082 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:38,082 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,082 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:38,082 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:38,082 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2025-02-08 14:21:38,082 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:38,082 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:38,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,121 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:38,121 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:38,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,123 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 14:21:38,125 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 14:21:38,126 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 14:21:38,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:38,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:38,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:38,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:38,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:38,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:38,141 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:38,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-08 14:21:38,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,149 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 14:21:38,160 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 14:21:38,160 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 14:21:38,167 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 14:21:38,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:38,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:38,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:38,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:38,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:38,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:38,178 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:38,185 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 14:21:38,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,187 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 14:21:38,188 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 14:21:38,190 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 14:21:38,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:38,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:38,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:38,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:38,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:38,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:38,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:38,203 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:38,206 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:21:38,206 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:38,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,208 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 14:21:38,210 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 14:21:38,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:38,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:38,211 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:38,211 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-08 14:21:38,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:38,219 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:38,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:38,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:38,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,241 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,241 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 14:21:38,242 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:21:38,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:38,248 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 12 transitions. Complement of second has 3 states. [2025-02-08 14:21:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2025-02-08 14:21:38,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 1 letters. [2025-02-08 14:21:38,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 3 letters. Loop has 1 letters. [2025-02-08 14:21:38,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-08 14:21:38,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 12 transitions. [2025-02-08 14:21:38,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:38,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 6 states and 9 transitions. [2025-02-08 14:21:38,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2025-02-08 14:21:38,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2025-02-08 14:21:38,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2025-02-08 14:21:38,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:38,254 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-02-08 14:21:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2025-02-08 14:21:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2025-02-08 14:21:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 14:21:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2025-02-08 14:21:38,255 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2025-02-08 14:21:38,255 INFO L432 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2025-02-08 14:21:38,255 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:21:38,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2025-02-08 14:21:38,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:21:38,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:38,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:38,255 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2025-02-08 14:21:38,255 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:21:38,256 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~i~0#1 >= 0;main_~j~0#1 := 0;" "assume !(main_~j~0#1 <= main_~i~0#1 - 1);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 >= 0;main_~j~0#1 := 0;" [2025-02-08 14:21:38,256 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1;" [2025-02-08 14:21:38,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1045602, now seen corresponding path program 2 times [2025-02-08 14:21:38,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:38,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261451253] [2025-02-08 14:21:38,256 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:38,264 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 2 equivalence classes. [2025-02-08 14:21:38,267 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:38,268 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:21:38,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,309 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 14:21:38,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:21:38,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261451253] [2025-02-08 14:21:38,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261451253] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:21:38,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:21:38,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:21:38,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004986116] [2025-02-08 14:21:38,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:21:38,312 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:21:38,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,312 INFO L85 PathProgramCache]: Analyzing trace with hash 33, now seen corresponding path program 2 times [2025-02-08 14:21:38,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:38,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678382899] [2025-02-08 14:21:38,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:38,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:38,315 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,316 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,316 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:21:38,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:38,316 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:38,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:38,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:38,331 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:38,331 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:38,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:38,332 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:38,332 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:38,332 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,332 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:38,332 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:38,332 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2025-02-08 14:21:38,332 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:38,332 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:38,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,377 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:38,377 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:38,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,381 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 14:21:38,383 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 14:21:38,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:38,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:38,403 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:38,403 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 14:21:38,409 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 14:21:38,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,411 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 14:21:38,414 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 14:21:38,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:38,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:38,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:38,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,435 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 14:21:38,436 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 14:21:38,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:38,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:38,508 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:38,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:38,513 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:38,513 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:38,513 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:38,513 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:38,513 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:38,513 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,513 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:38,513 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:38,513 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2025-02-08 14:21:38,513 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:38,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:38,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:38,556 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:38,557 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:38,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,559 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 14:21:38,560 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 14:21:38,561 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 14:21:38,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:38,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:38,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:38,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:38,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:38,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:38,580 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:38,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:38,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,590 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 14:21:38,592 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 14:21:38,593 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 14:21:38,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:38,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:38,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:38,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:38,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:38,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:38,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:38,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:38,613 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:38,613 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:38,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:38,616 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 14:21:38,617 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 14:21:38,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:38,619 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:38,619 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:38,619 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2025-02-08 14:21:38,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-08 14:21:38,627 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:38,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:38,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:38,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,661 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,662 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 14:21:38,662 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:21:38,662 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 6 states and 9 transitions. Complement of second has 3 states. [2025-02-08 14:21:38,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2025-02-08 14:21:38,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 4 letters. Loop has 1 letters. [2025-02-08 14:21:38,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,671 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:21:38,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:38,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:38,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,699 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,700 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 14:21:38,700 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:21:38,700 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,705 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 6 states and 9 transitions. Complement of second has 3 states. [2025-02-08 14:21:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2025-02-08 14:21:38,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 4 letters. Loop has 1 letters. [2025-02-08 14:21:38,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,706 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-08 14:21:38,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:38,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:38,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:38,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:38,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:38,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:38,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:38,735 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:38,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:38,736 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 14:21:38,736 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 1 loop predicates [2025-02-08 14:21:38,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 6 states and 8 transitions. Complement of second has 2 states. [2025-02-08 14:21:38,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:21:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2025-02-08 14:21:38,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2025-02-08 14:21:38,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2025-02-08 14:21:38,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:21:38,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:38,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2025-02-08 14:21:38,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:38,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2025-02-08 14:21:38,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:21:38,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:21:38,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:21:38,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:38,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:38,746 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:21:38,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:21:38,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:21:38,749 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:21:38,750 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-08 14:21:38,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-08 14:21:38,751 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:38,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 14:21:38,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:21:38,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:21:38,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:21:38,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:38,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:38,752 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 14:21:38,753 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:38,753 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:21:38,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:21:38,754 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:38,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:21:38,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:21:38 BoogieIcfgContainer [2025-02-08 14:21:38,762 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:21:38,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:21:38,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:21:38,763 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:21:38,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:37" (3/4) ... [2025-02-08 14:21:38,765 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:21:38,766 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:21:38,767 INFO L158 Benchmark]: Toolchain (without parser) took 2053.15ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 89.6MB in the end (delta: 34.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2025-02-08 14:21:38,767 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:38,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.10ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 113.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:38,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.43ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:38,768 INFO L158 Benchmark]: Boogie Preprocessor took 13.59ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 111.5MB in the end (delta: 985.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:38,768 INFO L158 Benchmark]: IcfgBuilder took 159.51ms. Allocated memory is still 167.8MB. Free memory was 111.5MB in the beginning and 101.8MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:21:38,769 INFO L158 Benchmark]: BuchiAutomizer took 1736.08ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 89.7MB in the end (delta: 12.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2025-02-08 14:21:38,769 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 89.6MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:38,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 121.10ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 113.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.43ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.59ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 111.5MB in the end (delta: 985.5kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 159.51ms. Allocated memory is still 167.8MB. Free memory was 111.5MB in the beginning and 101.8MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1736.08ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 89.7MB in the end (delta: 12.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 89.6MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * i) + 1) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * j) + i) and consists of 2 locations. One nondeterministic module has affine ranking function (((long) -1 * j) + i) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 11 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:21:38,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-08 14:21:38,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:39,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE