./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:37:07,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:37:08,034 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-04 15:37:08,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:37:08,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:37:08,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:37:08,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:37:08,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:37:08,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:37:08,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:37:08,062 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:37:08,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:37:08,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:37:08,064 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:37:08,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:37:08,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:37:08,065 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:37:08,066 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:37:08,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:37:08,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:37:08,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:37:08,066 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:37:08,067 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/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 -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2025-03-04 15:37:08,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:37:08,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:37:08,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:37:08,317 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:37:08,317 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:37:08,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2025-03-04 15:37:09,490 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a04e0404/0832d6c2e720489fbe6b39332db0e368/FLAG2490e8c5e [2025-03-04 15:37:09,697 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:37:09,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2025-03-04 15:37:09,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a04e0404/0832d6c2e720489fbe6b39332db0e368/FLAG2490e8c5e [2025-03-04 15:37:10,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a04e0404/0832d6c2e720489fbe6b39332db0e368 [2025-03-04 15:37:10,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:37:10,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:37:10,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:37:10,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:37:10,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:37:10,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c69b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10, skipping insertion in model container [2025-03-04 15:37:10,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:37:10,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:37:10,139 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:37:10,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:37:10,157 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:37:10,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10 WrapperNode [2025-03-04 15:37:10,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:37:10,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:37:10,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:37:10,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:37:10,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,174 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2025-03-04 15:37:10,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:37:10,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:37:10,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:37:10,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:37:10,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,182 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 15:37:10,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:37:10,187 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:37:10,187 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:37:10,187 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:37:10,188 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (1/1) ... [2025-03-04 15:37:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 15:37:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:37:10,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:37:10,283 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:37:10,284 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:37:10,334 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-03-04 15:37:10,335 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:37:10,342 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:37:10,342 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:37:10,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:37:10 BoogieIcfgContainer [2025-03-04 15:37:10,343 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:37:10,343 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:37:10,343 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:37:10,347 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:37:10,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:37:10,347 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:37:10" (1/3) ... [2025-03-04 15:37:10,348 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@386b14f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:37:10, skipping insertion in model container [2025-03-04 15:37:10,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:37:10,348 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:37:10" (2/3) ... [2025-03-04 15:37:10,348 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@386b14f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:37:10, skipping insertion in model container [2025-03-04 15:37:10,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:37:10,348 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:37:10" (3/3) ... [2025-03-04 15:37:10,349 INFO L363 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2025-03-04 15:37:10,380 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:37:10,380 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:37:10,380 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:37:10,381 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:37:10,381 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:37:10,381 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:37:10,381 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:37:10,381 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:37:10,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-03-04 15:37:10,391 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2025-03-04 15:37:10,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:37:10,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:37:10,393 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 15:37:10,393 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:37:10,393 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:37:10,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-03-04 15:37:10,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2025-03-04 15:37:10,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:37:10,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:37:10,394 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 15:37:10,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:37:10,398 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0;" [2025-03-04 15:37:10,398 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;main_~c~0#1 := 1 + main_~c~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2025-03-04 15:37:10,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-03-04 15:37:10,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:37:10,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194982526] [2025-03-04 15:37:10,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:37:10,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:37:10,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:37:10,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:37:10,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,453 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:37:10,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:37:10,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:37:10,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:37:10,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 1 times [2025-03-04 15:37:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:37:10,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498754591] [2025-03-04 15:37:10,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:37:10,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:37:10,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:10,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:10,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,481 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:37:10,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:10,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:10,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:37:10,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 36709, now seen corresponding path program 1 times [2025-03-04 15:37:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:37:10,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285992369] [2025-03-04 15:37:10,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:37:10,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:37:10,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:37:10,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:37:10,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,500 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:37:10,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:37:10,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:37:10,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:10,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:10,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:37:10,570 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:37:10,571 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:37:10,571 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:37:10,571 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:37:10,571 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:37:10,571 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,571 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:37:10,571 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:37:10,571 INFO L132 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2025-03-04 15:37:10,572 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:37:10,572 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:37:10,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,677 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:37:10,678 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:37:10,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 15:37:10,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:10,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:10,709 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:37:10,710 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: [] [2025-03-04 15:37:10,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:10,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 15:37:10,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:10,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:10,743 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:37:10,743 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: [] [2025-03-04 15:37:10,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:10,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 15:37:10,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:10,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:10,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 15:37:10,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,797 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 15:37:10,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:37:10,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:10,824 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:37:10,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-04 15:37:10,828 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:37:10,828 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:37:10,828 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:37:10,828 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:37:10,828 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:37:10,828 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,828 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:37:10,828 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:37:10,828 INFO L132 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2025-03-04 15:37:10,828 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:37:10,828 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:37:10,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:10,904 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:37:10,907 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:37:10,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 15:37:10,916 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 [2025-03-04 15:37:10,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:10,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:10,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:10,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:10,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:37:10,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:37:10,936 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:37:10,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-04 15:37:10,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 15:37:10,947 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 [2025-03-04 15:37:10,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:10,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:10,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:10,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:10,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:37:10,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:37:10,963 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:37:10,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:10,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:10,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:10,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:10,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 15:37:10,983 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 [2025-03-04 15:37:10,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:10,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:37:10,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:10,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:10,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:10,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:37:10,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:37:11,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:37:11,003 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:37:11,005 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 15:37:11,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 15:37:11,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:37:11,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:37:11,013 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:37:11,013 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2025-03-04 15:37:11,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 15:37:11,021 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:37:11,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:11,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:37:11,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:37:11,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:37:11,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:37:11,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:37:11,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:11,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:11,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:37:11,065 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:37:11,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:37:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:37:11,086 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 [2025-03-04 15:37:11,087 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) 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) [2025-03-04 15:37:11,107 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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). 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 9 states and 12 transitions. Complement of second has 3 states. [2025-03-04 15:37:11,110 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 [2025-03-04 15:37:11,113 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) [2025-03-04 15:37:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2025-03-04 15:37:11,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 1 letters. [2025-03-04 15:37:11,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 3 letters. Loop has 1 letters. [2025-03-04 15:37:11,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 2 letters. Loop has 2 letters. [2025-03-04 15:37:11,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2025-03-04 15:37:11,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:37:11,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 6 states and 8 transitions. [2025-03-04 15:37:11,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-04 15:37:11,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-03-04 15:37:11,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2025-03-04 15:37:11,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:37:11,125 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2025-03-04 15:37:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2025-03-04 15:37:11,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2025-03-04 15:37:11,141 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) [2025-03-04 15:37:11,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2025-03-04 15:37:11,142 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2025-03-04 15:37:11,142 INFO L432 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2025-03-04 15:37:11,142 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:37:11,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2025-03-04 15:37:11,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:37:11,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:37:11,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:37:11,143 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:37:11,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:37:11,143 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0;" "assume !(main_~i~0#1 < 100);main_~j~0#1 := 5;" [2025-03-04 15:37:11,143 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < 21;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 3 + main_~j~0#1;" [2025-03-04 15:37:11,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash 36708, now seen corresponding path program 1 times [2025-03-04 15:37:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:37:11,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026368276] [2025-03-04 15:37:11,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:37:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:37:11,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:37:11,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:37:11,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:37:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:37:11,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:37:11,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026368276] [2025-03-04 15:37:11,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026368276] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:37:11,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:37:11,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:37:11,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541828730] [2025-03-04 15:37:11,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:37:11,176 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-04 15:37:11,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:11,177 INFO L85 PathProgramCache]: Analyzing trace with hash 34, now seen corresponding path program 1 times [2025-03-04 15:37:11,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:37:11,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934666433] [2025-03-04 15:37:11,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:37:11,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:37:11,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:11,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:11,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:11,185 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:37:11,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:11,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:11,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:37:11,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:37:11,230 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:37:11,230 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:37:11,230 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:37:11,230 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:37:11,230 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:37:11,230 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,230 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:37:11,230 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:37:11,230 INFO L132 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2025-03-04 15:37:11,230 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:37:11,231 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:37:11,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,284 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:37:11,285 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:37:11,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-04 15:37:11,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:11,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,324 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:37:11,324 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: [] [2025-03-04 15:37:11,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-04 15:37:11,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,331 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-04 15:37:11,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:11,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,352 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:37:11,352 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: [] [2025-03-04 15:37:11,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-04 15:37:11,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-04 15:37:11,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:11,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,380 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-04 15:37:11,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:37:11,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,411 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:37:11,411 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2025-03-04 15:37:11,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-04 15:37:11,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,420 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-04 15:37:11,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:37:11,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-04 15:37:11,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:37:11,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:37:11,469 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:37:11,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,473 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:37:11,474 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:37:11,474 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:37:11,474 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:37:11,474 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:37:11,474 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,474 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:37:11,474 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:37:11,474 INFO L132 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2025-03-04 15:37:11,474 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:37:11,474 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:37:11,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:37:11,557 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:37:11,557 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:37:11,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,564 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-04 15:37:11,566 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 [2025-03-04 15:37:11,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:11,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:11,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:11,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:11,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:37:11,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:37:11,583 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:37:11,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,591 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-04 15:37:11,592 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 [2025-03-04 15:37:11,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:11,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:11,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:11,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:11,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:37:11,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:37:11,608 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:37:11,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-03-04 15:37:11,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,616 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-04 15:37:11,619 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 [2025-03-04 15:37:11,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:11,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:37:11,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:11,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:11,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:11,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:37:11,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:37:11,633 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:37:11,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-04 15:37:11,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,642 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-04 15:37:11,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:37:11,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:37:11,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:37:11,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:37:11,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:37:11,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:37:11,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:37:11,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:37:11,657 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:37:11,659 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:37:11,659 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 15:37:11,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:37:11,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:37:11,661 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:37:11,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-03-04 15:37:11,664 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:37:11,665 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:37:11,665 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:37:11,665 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2025-03-04 15:37:11,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-03-04 15:37:11,672 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:37:11,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:37:11,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:37:11,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:37:11,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:37:11,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:37:11,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:37:11,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:37:11,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:37:11,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:37:11,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:37:11,720 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:37:11,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:37:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:37:11,720 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 [2025-03-04 15:37:11,721 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 2.0) internal successors, (4), 2 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) [2025-03-04 15:37:11,725 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 8 transitions. Complement of second has 2 states. [2025-03-04 15:37:11,726 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 [2025-03-04 15:37:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-04 15:37:11,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2025-03-04 15:37:11,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2025-03-04 15:37:11,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2025-03-04 15:37:11,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2025-03-04 15:37:11,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:37:11,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2025-03-04 15:37:11,728 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:37:11,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2025-03-04 15:37:11,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:37:11,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:37:11,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:37:11,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:37:11,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:37:11,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:37:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:37:11,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:37:11,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:37:11,730 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2025-03-04 15:37:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 15:37:11,731 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-04 15:37:11,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-04 15:37:11,731 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:37:11,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:37:11,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:37:11,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:37:11,732 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 15:37:11,732 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 15:37:11,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:37:11,732 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:37:11,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:37:11,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:37:11 BoogieIcfgContainer [2025-03-04 15:37:11,739 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:37:11,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:37:11,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:37:11,740 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:37:11,740 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:37:10" (3/4) ... [2025-03-04 15:37:11,742 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:37:11,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:37:11,743 INFO L158 Benchmark]: Toolchain (without parser) took 1698.88ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 86.7MB in the end (delta: 19.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 113.70ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 96.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.23ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: Boogie Preprocessor took 11.76ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: IcfgBuilder took 155.94ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 85.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: BuchiAutomizer took 1395.68ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 86.7MB in the end (delta: -955.3kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2025-03-04 15:37:11,743 INFO L158 Benchmark]: Witness Printer took 2.57ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:37:11,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 113.70ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 96.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.23ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.76ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 155.94ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 85.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1395.68ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 86.7MB in the end (delta: -955.3kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -2 * i) + 199) and consists of 2 locations. One deterministic module has affine ranking function (((long) -2 * j) + 43) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:37:11,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-03-04 15:37:11,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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