./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Sunset.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed 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/Sunset.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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:50:15,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:50:15,089 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 06:50:15,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:50:15,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:50:15,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 06:50:15,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:50:15,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:50:15,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:50:15,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:50:15,117 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 06:50:15,117 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 06:50:15,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:50:15,118 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:50:15,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:50:15,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:50:15,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:50:15,120 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 06:50:15,120 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 -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2025-03-09 06:50:15,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:50:15,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:50:15,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:50:15,354 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:50:15,355 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:50:15,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sunset.c [2025-03-09 06:50:16,512 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1441139a7/ebc35027a8094c2cab4453ce2067be1c/FLAG8396d6c26 [2025-03-09 06:50:16,689 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:50:16,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sunset.c [2025-03-09 06:50:16,694 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1441139a7/ebc35027a8094c2cab4453ce2067be1c/FLAG8396d6c26 [2025-03-09 06:50:17,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1441139a7/ebc35027a8094c2cab4453ce2067be1c [2025-03-09 06:50:17,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:50:17,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:50:17,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:50:17,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:50:17,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:50:17,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2d95f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17, skipping insertion in model container [2025-03-09 06:50:17,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:50:17,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:50:17,175 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:50:17,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:50:17,188 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:50:17,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17 WrapperNode [2025-03-09 06:50:17,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:50:17,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:50:17,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:50:17,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:50:17,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,201 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2025-03-09 06:50:17,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:50:17,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:50:17,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:50:17,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:50:17,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,210 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 06:50:17,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,212 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:50:17,215 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:50:17,215 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:50:17,215 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:50:17,216 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (1/1) ... [2025-03-09 06:50:17,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,239 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) [2025-03-09 06:50:17,241 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 [2025-03-09 06:50:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:50:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:50:17,302 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:50:17,304 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:50:17,356 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-03-09 06:50:17,356 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:50:17,363 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:50:17,363 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:50:17,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:50:17 BoogieIcfgContainer [2025-03-09 06:50:17,364 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:50:17,365 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 06:50:17,365 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 06:50:17,369 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 06:50:17,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:50:17,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 06:50:17" (1/3) ... [2025-03-09 06:50:17,371 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370f3939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:50:17, skipping insertion in model container [2025-03-09 06:50:17,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:50:17,371 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:50:17" (2/3) ... [2025-03-09 06:50:17,371 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370f3939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:50:17, skipping insertion in model container [2025-03-09 06:50:17,372 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:50:17,372 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:50:17" (3/3) ... [2025-03-09 06:50:17,372 INFO L363 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2025-03-09 06:50:17,413 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 06:50:17,414 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 06:50:17,414 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 06:50:17,415 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 06:50:17,415 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 06:50:17,415 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 06:50:17,415 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 06:50:17,416 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 06:50:17,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:17,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-09 06:50:17,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:17,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:17,432 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:50:17,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:17,432 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 06:50:17,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:17,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-09 06:50:17,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:17,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:17,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:50:17,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:17,440 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-03-09 06:50:17,440 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:17,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1248, now seen corresponding path program 1 times [2025-03-09 06:50:17,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971910998] [2025-03-09 06:50:17,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:17,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:17,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:50:17,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:50:17,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,501 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:17,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:50:17,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:50:17,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:17,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:17,514 INFO L85 PathProgramCache]: Analyzing trace with hash 36676, now seen corresponding path program 1 times [2025-03-09 06:50:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:17,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573775445] [2025-03-09 06:50:17,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:17,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:17,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:17,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:17,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,521 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:17,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:17,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:17,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:17,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:17,525 INFO L85 PathProgramCache]: Analyzing trace with hash 37186053, now seen corresponding path program 1 times [2025-03-09 06:50:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:17,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161562686] [2025-03-09 06:50:17,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:17,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:17,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:17,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,534 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:17,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:17,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:17,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:17,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:17,601 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:17,602 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:17,602 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:17,602 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:17,602 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:17,602 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,602 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:17,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:17,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2025-03-09 06:50:17,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:17,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:17,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,667 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:17,667 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:17,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,670 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) [2025-03-09 06:50:17,672 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 [2025-03-09 06:50:17,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:17,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:17,693 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:17,693 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: [] [2025-03-09 06:50:17,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-09 06:50:17,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,701 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) [2025-03-09 06:50:17,703 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 [2025-03-09 06:50:17,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:17,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:17,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:17,722 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: [] [2025-03-09 06:50:17,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-09 06:50:17,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,729 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) [2025-03-09 06:50:17,730 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 [2025-03-09 06:50:17,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:17,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:17,753 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 [2025-03-09 06:50:17,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,756 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) [2025-03-09 06:50:17,757 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 [2025-03-09 06:50:17,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:17,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:17,774 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:17,780 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 [2025-03-09 06:50:17,780 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:17,780 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:17,780 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:17,780 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:17,780 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:17,780 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,780 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:17,780 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:17,780 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2025-03-09 06:50:17,780 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:17,780 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:17,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:17,824 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:17,827 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:17,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,830 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) [2025-03-09 06:50:17,831 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 [2025-03-09 06:50:17,833 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 [2025-03-09 06:50:17,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:17,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:17,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:17,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:17,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:17,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:17,863 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:17,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:17,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,871 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) [2025-03-09 06:50:17,873 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 [2025-03-09 06:50:17,874 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 [2025-03-09 06:50:17,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:17,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:17,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:17,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:17,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:17,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:17,890 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:17,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-03-09 06:50:17,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,898 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) [2025-03-09 06:50:17,899 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 [2025-03-09 06:50:17,900 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 [2025-03-09 06:50:17,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:17,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:17,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:17,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:17,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:17,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:17,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:17,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:17,919 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:17,921 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:17,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:17,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:17,924 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) [2025-03-09 06:50:17,925 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 [2025-03-09 06:50:17,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:17,926 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:17,926 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:17,926 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 27 Supporting invariants [] [2025-03-09 06:50:17,932 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 [2025-03-09 06:50:17,934 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:17,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:17,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:50:17,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:50:17,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:17,962 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:17,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:17,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:17,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:17,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:17,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:17,972 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:17,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,018 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:18,020 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,050 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 23 transitions. Complement of second has 5 states. [2025-03-09 06:50:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2025-03-09 06:50:18,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-09 06:50:18,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,058 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:18,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:50:18,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:50:18,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,078 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,087 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,105 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:18,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 25 transitions. Complement of second has 7 states. [2025-03-09 06:50:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2025-03-09 06:50:18,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-09 06:50:18,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-09 06:50:18,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 6 letters. [2025-03-09 06:50:18,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2025-03-09 06:50:18,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-09 06:50:18,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 18 transitions. [2025-03-09 06:50:18,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-03-09 06:50:18,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2025-03-09 06:50:18,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2025-03-09 06:50:18,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:18,138 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 18 transitions. [2025-03-09 06:50:18,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2025-03-09 06:50:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2025-03-09 06:50:18,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2025-03-09 06:50:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2025-03-09 06:50:18,156 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2025-03-09 06:50:18,156 INFO L432 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2025-03-09 06:50:18,156 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 06:50:18,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2025-03-09 06:50:18,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-09 06:50:18,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:18,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:18,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-09 06:50:18,157 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:18,157 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" [2025-03-09 06:50:18,157 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" [2025-03-09 06:50:18,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1199551, now seen corresponding path program 1 times [2025-03-09 06:50:18,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250891538] [2025-03-09 06:50:18,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:18,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:50:18,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:50:18,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,164 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:50:18,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:50:18,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash 32896, now seen corresponding path program 2 times [2025-03-09 06:50:18,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362791317] [2025-03-09 06:50:18,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,177 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,178 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,178 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:50:18,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,179 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1376088578, now seen corresponding path program 1 times [2025-03-09 06:50:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532879389] [2025-03-09 06:50:18,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:18,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:18,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,186 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:18,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:18,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,225 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:18,225 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:18,225 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:18,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:18,226 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:18,226 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,226 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:18,226 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:18,226 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2025-03-09 06:50:18,226 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:18,226 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:18,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-09 06:50:18,274 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:18,274 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:18,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,277 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) [2025-03-09 06:50:18,278 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 [2025-03-09 06:50:18,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:18,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,297 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:18,297 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: [] [2025-03-09 06:50:18,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:18,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,306 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) [2025-03-09 06:50:18,307 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 [2025-03-09 06:50:18,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:18,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,327 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:18,327 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: [] [2025-03-09 06:50:18,333 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 [2025-03-09 06:50:18,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,335 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) [2025-03-09 06:50:18,337 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 [2025-03-09 06:50:18,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:18,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,360 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 [2025-03-09 06:50:18,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,362 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) [2025-03-09 06:50:18,363 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 [2025-03-09 06:50:18,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:18,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,375 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:18,382 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 [2025-03-09 06:50:18,382 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:18,382 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:18,382 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:18,382 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:18,382 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:18,382 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,382 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:18,382 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:18,382 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2025-03-09 06:50:18,382 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:18,382 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:18,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,418 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:18,418 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:18,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,420 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) [2025-03-09 06:50:18,422 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 [2025-03-09 06:50:18,423 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 [2025-03-09 06:50:18,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:18,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:18,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:18,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:18,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:18,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:18,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:18,444 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 [2025-03-09 06:50:18,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,446 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) [2025-03-09 06:50:18,448 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 [2025-03-09 06:50:18,449 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 [2025-03-09 06:50:18,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:18,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:18,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:18,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:18,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:18,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:18,464 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:18,470 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 [2025-03-09 06:50:18,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,473 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) [2025-03-09 06:50:18,474 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 [2025-03-09 06:50:18,475 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 [2025-03-09 06:50:18,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:18,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:18,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:18,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:18,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:18,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:18,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:18,489 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:18,492 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:18,492 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:18,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,494 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) [2025-03-09 06:50:18,494 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 [2025-03-09 06:50:18,495 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:18,495 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:18,495 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:18,495 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 28 Supporting invariants [] [2025-03-09 06:50:18,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-03-09 06:50:18,503 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:18,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:50:18,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:50:18,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,526 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,536 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:18,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 35 transitions. Complement of second has 5 states. [2025-03-09 06:50:18,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2025-03-09 06:50:18,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 3 letters. [2025-03-09 06:50:18,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-09 06:50:18,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 6 letters. [2025-03-09 06:50:18,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2025-03-09 06:50:18,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-03-09 06:50:18,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 22 states and 34 transitions. [2025-03-09 06:50:18,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2025-03-09 06:50:18,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2025-03-09 06:50:18,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 34 transitions. [2025-03-09 06:50:18,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:18,554 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 34 transitions. [2025-03-09 06:50:18,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 34 transitions. [2025-03-09 06:50:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2025-03-09 06:50:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 states have internal predecessors, (31), 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) [2025-03-09 06:50:18,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2025-03-09 06:50:18,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 31 transitions. [2025-03-09 06:50:18,555 INFO L432 stractBuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2025-03-09 06:50:18,555 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 06:50:18,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2025-03-09 06:50:18,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-03-09 06:50:18,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:18,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:18,556 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:50:18,556 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:18,556 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20;" [2025-03-09 06:50:18,556 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:18,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash 37186054, now seen corresponding path program 1 times [2025-03-09 06:50:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305751463] [2025-03-09 06:50:18,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:18,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:18,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:50:18,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305751463] [2025-03-09 06:50:18,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305751463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:50:18,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:50:18,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:50:18,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286338630] [2025-03-09 06:50:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:50:18,589 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-09 06:50:18,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash 36676, now seen corresponding path program 3 times [2025-03-09 06:50:18,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764872441] [2025-03-09 06:50:18,590 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:50:18,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,594 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,594 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 06:50:18,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,594 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,613 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:18,614 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:18,614 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:18,614 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:18,614 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:18,614 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,614 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:18,614 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:18,614 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2025-03-09 06:50:18,614 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:18,614 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:18,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,648 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:18,648 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:18,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,650 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) [2025-03-09 06:50:18,651 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 [2025-03-09 06:50:18,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:18,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,674 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:18,674 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:18,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:18,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,682 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) [2025-03-09 06:50:18,683 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 [2025-03-09 06:50:18,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:18,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,706 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 [2025-03-09 06:50:18,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,708 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) [2025-03-09 06:50:18,710 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 [2025-03-09 06:50:18,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:18,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:18,722 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:18,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-03-09 06:50:18,728 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:18,728 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:18,728 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:18,728 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:18,728 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:18,728 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,728 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:18,728 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:18,729 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2025-03-09 06:50:18,729 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:18,729 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:18,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:18,775 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:18,775 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:18,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,777 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2025-03-09 06:50:18,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-03-09 06:50:18,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 06:50:18,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:18,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:18,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:18,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:18,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:18,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:18,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:18,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-03-09 06:50:18,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,807 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2025-03-09 06:50:18,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-03-09 06:50:18,811 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 [2025-03-09 06:50:18,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:18,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:18,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:18,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:18,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:18,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:18,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:18,826 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:18,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:18,829 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:18,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:18,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:18,832 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2025-03-09 06:50:18,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-03-09 06:50:18,833 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:18,833 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:18,833 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:18,833 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 27 Supporting invariants [] [2025-03-09 06:50:18,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:18,840 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:18,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:18,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:18,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,863 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,884 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:18,884 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 67 transitions. Complement of second has 5 states. [2025-03-09 06:50:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:18,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:18,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-09 06:50:18,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,904 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:18,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:18,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:18,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:18,928 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:18,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:18,942 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:18,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 71 transitions. Complement of second has 7 states. [2025-03-09 06:50:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2025-03-09 06:50:18,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-09 06:50:18,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-09 06:50:18,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2025-03-09 06:50:18,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:18,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 71 transitions. [2025-03-09 06:50:18,963 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2025-03-09 06:50:18,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 43 states and 69 transitions. [2025-03-09 06:50:18,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2025-03-09 06:50:18,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2025-03-09 06:50:18,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 69 transitions. [2025-03-09 06:50:18,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:18,963 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 69 transitions. [2025-03-09 06:50:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 69 transitions. [2025-03-09 06:50:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2025-03-09 06:50:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.5609756097560976) internal successors, (64), 40 states have internal predecessors, (64), 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) [2025-03-09 06:50:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2025-03-09 06:50:18,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 64 transitions. [2025-03-09 06:50:18,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:50:18,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:50:18,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:50:18,968 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:50:18,979 INFO L93 Difference]: Finished difference Result 29 states and 40 transitions. [2025-03-09 06:50:18,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2025-03-09 06:50:18,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-03-09 06:50:18,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 27 states and 37 transitions. [2025-03-09 06:50:18,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2025-03-09 06:50:18,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2025-03-09 06:50:18,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2025-03-09 06:50:18,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:18,981 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2025-03-09 06:50:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2025-03-09 06:50:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2025-03-09 06:50:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 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) [2025-03-09 06:50:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2025-03-09 06:50:18,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2025-03-09 06:50:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:50:18,983 INFO L432 stractBuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2025-03-09 06:50:18,983 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 06:50:18,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2025-03-09 06:50:18,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-09 06:50:18,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:18,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:18,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2025-03-09 06:50:18,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:18,983 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" [2025-03-09 06:50:18,983 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" [2025-03-09 06:50:18,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1376088579, now seen corresponding path program 1 times [2025-03-09 06:50:18,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838635652] [2025-03-09 06:50:18,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:18,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:18,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:18,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,987 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:18,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:18,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 32896, now seen corresponding path program 4 times [2025-03-09 06:50:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195260773] [2025-03-09 06:50:18,990 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 06:50:18,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,992 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 3 statements into 2 equivalence classes. [2025-03-09 06:50:18,993 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,993 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 06:50:18,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,993 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:18,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:18,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:18,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:18,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:18,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:18,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:18,996 INFO L85 PathProgramCache]: Analyzing trace with hash -407980226, now seen corresponding path program 2 times [2025-03-09 06:50:18,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:18,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524127552] [2025-03-09 06:50:18,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:18,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:18,998 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 10 statements into 2 equivalence classes. [2025-03-09 06:50:19,000 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:50:19,000 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:50:19,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,000 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:50:19,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:50:19,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,027 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:19,027 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:19,027 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:19,027 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:19,027 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:19,027 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,027 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:19,027 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:19,027 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration4_Loop [2025-03-09 06:50:19,027 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:19,027 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:19,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,058 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:19,058 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:19,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,060 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2025-03-09 06:50:19,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-03-09 06:50:19,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,081 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:19,081 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:19,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,090 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2025-03-09 06:50:19,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-03-09 06:50:19,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-09 06:50:19,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,117 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2025-03-09 06:50:19,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-09 06:50:19,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:19,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,133 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:19,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,139 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:19,139 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:19,139 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:19,139 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:19,139 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:19,139 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,139 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:19,139 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:19,139 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration4_Loop [2025-03-09 06:50:19,139 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:19,139 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:19,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,176 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:19,176 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:19,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,178 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2025-03-09 06:50:19,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-09 06:50:19,179 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 [2025-03-09 06:50:19,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:19,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:19,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:19,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:19,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:19,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:19,193 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:19,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,203 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2025-03-09 06:50:19,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-03-09 06:50:19,205 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 [2025-03-09 06:50:19,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:19,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:19,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:19,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:19,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:19,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:19,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:19,218 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:19,220 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:19,221 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:19,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,223 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2025-03-09 06:50:19,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-03-09 06:50:19,225 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:19,225 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:19,225 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:19,225 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 28 Supporting invariants [] [2025-03-09 06:50:19,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,232 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:19,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:19,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:19,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,268 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:19,277 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:19,277 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 42 transitions. Complement of second has 5 states. [2025-03-09 06:50:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:19,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:19,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-09 06:50:19,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,290 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:19,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:19,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:19,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,319 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:19,334 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:19,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 42 transitions. Complement of second has 5 states. [2025-03-09 06:50:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:19,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-09 06:50:19,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,349 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:19,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:50:19,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:50:19,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,377 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:19,388 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:19,388 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,415 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 48 transitions. Complement of second has 6 states. [2025-03-09 06:50:19,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2025-03-09 06:50:19,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-09 06:50:19,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-09 06:50:19,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2025-03-09 06:50:19,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2025-03-09 06:50:19,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-09 06:50:19,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 38 transitions. [2025-03-09 06:50:19,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2025-03-09 06:50:19,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2025-03-09 06:50:19,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2025-03-09 06:50:19,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:19,421 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 38 transitions. [2025-03-09 06:50:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2025-03-09 06:50:19,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 14. [2025-03-09 06:50:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 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) [2025-03-09 06:50:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2025-03-09 06:50:19,422 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2025-03-09 06:50:19,422 INFO L432 stractBuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2025-03-09 06:50:19,422 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-09 06:50:19,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2025-03-09 06:50:19,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-09 06:50:19,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:19,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:19,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:50:19,423 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:19,423 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:19,423 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:19,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash 37186084, now seen corresponding path program 2 times [2025-03-09 06:50:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314939164] [2025-03-09 06:50:19,427 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:19,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-03-09 06:50:19,431 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:19,432 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:19,432 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:50:19,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,432 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:19,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:19,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash 36707, now seen corresponding path program 1 times [2025-03-09 06:50:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779598795] [2025-03-09 06:50:19,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:19,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,438 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-03-09 06:50:19,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash -290927008, now seen corresponding path program 3 times [2025-03-09 06:50:19,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795951018] [2025-03-09 06:50:19,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:50:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,446 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 2 equivalence classes. [2025-03-09 06:50:19,448 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:19,448 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 06:50:19,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,448 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:50:19,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:19,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,476 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:19,476 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:19,476 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:19,476 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:19,476 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:19,476 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,476 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:19,476 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:19,476 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2025-03-09 06:50:19,476 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:19,476 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:19,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,539 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:19,539 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:19,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,541 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2025-03-09 06:50:19,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-03-09 06:50:19,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,562 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:19,562 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:19,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-03-09 06:50:19,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,569 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2025-03-09 06:50:19,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-03-09 06:50:19,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,587 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:19,588 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:19,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-03-09 06:50:19,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,595 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2025-03-09 06:50:19,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-03-09 06:50:19,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-03-09 06:50:19,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,615 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2025-03-09 06:50:19,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-03-09 06:50:19,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:19,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,644 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:19,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-03-09 06:50:19,649 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:19,649 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:19,649 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:19,649 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:19,649 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:19,649 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:19,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:19,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2025-03-09 06:50:19,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:19,649 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:19,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,706 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:19,706 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,708 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2025-03-09 06:50:19,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-03-09 06:50:19,709 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 [2025-03-09 06:50:19,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:19,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:19,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:19,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:19,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:19,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:19,723 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:19,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-03-09 06:50:19,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,730 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2025-03-09 06:50:19,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-03-09 06:50:19,732 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 [2025-03-09 06:50:19,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:19,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:19,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:19,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:19,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:19,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:19,746 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:19,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-03-09 06:50:19,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,753 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2025-03-09 06:50:19,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-03-09 06:50:19,755 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 [2025-03-09 06:50:19,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:19,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:19,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:19,765 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 06:50:19,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:19,766 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 06:50:19,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:19,769 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:19,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:19,772 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-09 06:50:19,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,775 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2025-03-09 06:50:19,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-03-09 06:50:19,777 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:19,777 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:19,777 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:19,777 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-03-09 06:50:19,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:19,784 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:19,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:19,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:19,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:19,808 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:50:19,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:19,819 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:19,820 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2025-03-09 06:50:19,836 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 36 states and 48 transitions. Complement of second has 5 states. [2025-03-09 06:50:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2025-03-09 06:50:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:19,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-09 06:50:19,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-09 06:50:19,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 6 letters. [2025-03-09 06:50:19,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:19,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2025-03-09 06:50:19,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-09 06:50:19,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 30 states and 40 transitions. [2025-03-09 06:50:19,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2025-03-09 06:50:19,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2025-03-09 06:50:19,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2025-03-09 06:50:19,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:19,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2025-03-09 06:50:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2025-03-09 06:50:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2025-03-09 06:50:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.4) internal successors, (35), 24 states have internal predecessors, (35), 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) [2025-03-09 06:50:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2025-03-09 06:50:19,842 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 35 transitions. [2025-03-09 06:50:19,842 INFO L432 stractBuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2025-03-09 06:50:19,842 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-03-09 06:50:19,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 35 transitions. [2025-03-09 06:50:19,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-09 06:50:19,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:19,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:19,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2025-03-09 06:50:19,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:50:19,843 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:19,843 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash -290927039, now seen corresponding path program 3 times [2025-03-09 06:50:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149030157] [2025-03-09 06:50:19,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:50:19,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 2 equivalence classes. [2025-03-09 06:50:19,849 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:19,849 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 06:50:19,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,849 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:50:19,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:19,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 36707, now seen corresponding path program 2 times [2025-03-09 06:50:19,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633146514] [2025-03-09 06:50:19,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,857 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,861 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,861 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:50:19,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,861 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:19,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:19,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:19,865 INFO L85 PathProgramCache]: Analyzing trace with hash 236591395, now seen corresponding path program 4 times [2025-03-09 06:50:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:19,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342745027] [2025-03-09 06:50:19,865 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 06:50:19,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:19,867 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 11 statements into 2 equivalence classes. [2025-03-09 06:50:19,871 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:50:19,872 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 06:50:19,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,873 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:19,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:50:19,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:50:19,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:19,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:19,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:19,899 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:19,900 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:19,900 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:19,900 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:19,900 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:19,900 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,900 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:19,900 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:19,900 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration6_Loop [2025-03-09 06:50:19,900 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:19,900 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:19,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:19,958 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:19,958 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:19,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,960 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2025-03-09 06:50:19,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-03-09 06:50:19,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:19,981 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:19,981 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:19,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-03-09 06:50:19,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:19,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:19,988 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2025-03-09 06:50:19,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-03-09 06:50:19,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:19,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,007 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:20,007 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:20,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2025-03-09 06:50:20,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,016 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2025-03-09 06:50:20,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-03-09 06:50:20,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:20,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-03-09 06:50:20,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,037 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2025-03-09 06:50:20,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-03-09 06:50:20,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:20,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,066 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:20,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2025-03-09 06:50:20,070 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:20,070 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:20,070 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:20,070 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:20,070 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:20,070 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,070 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:20,070 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:20,070 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration6_Loop [2025-03-09 06:50:20,070 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:20,070 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:20,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,129 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:20,129 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:20,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,131 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2025-03-09 06:50:20,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2025-03-09 06:50:20,134 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 [2025-03-09 06:50:20,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:20,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:20,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:20,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:20,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:20,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:20,150 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:20,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,159 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2025-03-09 06:50:20,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2025-03-09 06:50:20,161 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 [2025-03-09 06:50:20,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:20,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:20,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:20,172 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 06:50:20,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:20,173 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 06:50:20,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:20,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:20,181 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:20,181 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-09 06:50:20,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,183 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2025-03-09 06:50:20,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2025-03-09 06:50:20,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:20,189 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:20,189 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:20,189 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-03-09 06:50:20,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2025-03-09 06:50:20,196 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:20,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:50:20,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:20,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:20,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:20,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,227 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:20,241 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:20,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 48 transitions. Complement of second has 5 states. [2025-03-09 06:50:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:20,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-09 06:50:20,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,254 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:20,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:50:20,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:20,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:20,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:20,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,278 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:20,289 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:20,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 48 transitions. Complement of second has 5 states. [2025-03-09 06:50:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:20,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-09 06:50:20,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-09 06:50:20,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,302 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:20,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:50:20,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:50:20,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:50:20,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:50:20,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,329 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:20,350 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:50:20,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 53 transitions. Complement of second has 4 states. [2025-03-09 06:50:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:50:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2025-03-09 06:50:20,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-09 06:50:20,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 3 letters. [2025-03-09 06:50:20,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 6 letters. [2025-03-09 06:50:20,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 53 transitions. [2025-03-09 06:50:20,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2025-03-09 06:50:20,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 29 states and 39 transitions. [2025-03-09 06:50:20,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2025-03-09 06:50:20,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:50:20,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 39 transitions. [2025-03-09 06:50:20,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:20,367 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 39 transitions. [2025-03-09 06:50:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 39 transitions. [2025-03-09 06:50:20,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2025-03-09 06:50:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2025-03-09 06:50:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2025-03-09 06:50:20,368 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2025-03-09 06:50:20,369 INFO L432 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2025-03-09 06:50:20,369 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-03-09 06:50:20,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2025-03-09 06:50:20,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-09 06:50:20,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:20,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:20,369 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:50:20,369 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2025-03-09 06:50:20,369 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:20,369 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:20,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash 37186084, now seen corresponding path program 4 times [2025-03-09 06:50:20,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850765211] [2025-03-09 06:50:20,370 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 06:50:20,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,372 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 5 statements into 2 equivalence classes. [2025-03-09 06:50:20,372 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:20,372 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 06:50:20,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,372 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:20,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:20,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:20,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:20,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1093545122, now seen corresponding path program 1 times [2025-03-09 06:50:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539187597] [2025-03-09 06:50:20,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:50:20,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:20,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,381 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:20,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:20,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:20,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,384 INFO L85 PathProgramCache]: Analyzing trace with hash 237514885, now seen corresponding path program 5 times [2025-03-09 06:50:20,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984367718] [2025-03-09 06:50:20,384 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 06:50:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,389 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 11 statements into 3 equivalence classes. [2025-03-09 06:50:20,393 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:50:20,394 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-09 06:50:20,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,394 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:20,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:50:20,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:50:20,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:20,421 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:20,421 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:20,422 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:20,422 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:20,422 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:20,422 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,422 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:20,422 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:20,422 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration7_Loop [2025-03-09 06:50:20,422 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:20,422 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:20,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,449 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:20,449 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:20,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,451 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2025-03-09 06:50:20,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2025-03-09 06:50:20,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:20,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,469 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:20,469 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:20,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2025-03-09 06:50:20,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,476 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2025-03-09 06:50:20,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2025-03-09 06:50:20,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:20,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:20,495 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:20,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2025-03-09 06:50:20,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,503 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2025-03-09 06:50:20,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2025-03-09 06:50:20,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:20,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,529 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2025-03-09 06:50:20,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2025-03-09 06:50:20,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:20,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:20,541 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:20,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,547 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:20,547 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:20,547 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:20,547 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:20,547 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:20,547 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,547 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:20,547 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:20,547 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration7_Loop [2025-03-09 06:50:20,547 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:20,547 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:20,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,571 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Exception during sending of exit command (exit): Broken pipe [2025-03-09 06:50:20,587 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:20,587 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,589 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2025-03-09 06:50:20,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2025-03-09 06:50:20,590 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 [2025-03-09 06:50:20,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:20,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:20,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:20,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:20,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:20,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:20,610 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:20,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,618 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2025-03-09 06:50:20,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2025-03-09 06:50:20,621 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 [2025-03-09 06:50:20,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:20,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:20,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:20,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:20,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:20,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:20,635 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:20,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2025-03-09 06:50:20,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,647 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2025-03-09 06:50:20,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2025-03-09 06:50:20,650 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 [2025-03-09 06:50:20,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:20,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:20,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:20,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:20,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:20,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:20,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:20,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:20,664 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:20,664 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:20,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,666 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2025-03-09 06:50:20,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2025-03-09 06:50:20,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:20,668 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:20,668 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:20,668 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 55 Supporting invariants [] [2025-03-09 06:50:20,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:20,673 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:20,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:20,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:20,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:20,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:20,734 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:20,734 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-09 06:50:20,755 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 56 states and 75 transitions. Complement of second has 7 states. [2025-03-09 06:50:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-09 06:50:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2025-03-09 06:50:20,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2025-03-09 06:50:20,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,756 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:20,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:20,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:20,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:20,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:20,803 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:20,804 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-09 06:50:20,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 49 states and 65 transitions. Complement of second has 9 states. [2025-03-09 06:50:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-09 06:50:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2025-03-09 06:50:20,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2025-03-09 06:50:20,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2025-03-09 06:50:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 12 letters. [2025-03-09 06:50:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:20,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 65 transitions. [2025-03-09 06:50:20,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-09 06:50:20,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 39 states and 53 transitions. [2025-03-09 06:50:20,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2025-03-09 06:50:20,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:50:20,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 53 transitions. [2025-03-09 06:50:20,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:20,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 53 transitions. [2025-03-09 06:50:20,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 53 transitions. [2025-03-09 06:50:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2025-03-09 06:50:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.40625) internal successors, (45), 31 states have internal predecessors, (45), 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) [2025-03-09 06:50:20,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2025-03-09 06:50:20,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2025-03-09 06:50:20,829 INFO L432 stractBuchiCegarLoop]: Abstraction has 32 states and 45 transitions. [2025-03-09 06:50:20,829 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-03-09 06:50:20,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 45 transitions. [2025-03-09 06:50:20,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-09 06:50:20,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:20,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:20,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 1, 1, 1] [2025-03-09 06:50:20,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2025-03-09 06:50:20,830 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:20,830 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:20,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1995732929, now seen corresponding path program 6 times [2025-03-09 06:50:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971835541] [2025-03-09 06:50:20,831 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 06:50:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,834 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 14 statements into 4 equivalence classes. [2025-03-09 06:50:20,836 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:20,836 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-03-09 06:50:20,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,836 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:20,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:50:20,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:20,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:20,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1093545122, now seen corresponding path program 2 times [2025-03-09 06:50:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978353563] [2025-03-09 06:50:20,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:20,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,845 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-03-09 06:50:20,846 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,846 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:50:20,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,846 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:20,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:20,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:20,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:20,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:20,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1666831458, now seen corresponding path program 7 times [2025-03-09 06:50:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686786971] [2025-03-09 06:50:20,848 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 06:50:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:20,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:50:20,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:50:20,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 06:50:20,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:50:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686786971] [2025-03-09 06:50:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686786971] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:50:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448441357] [2025-03-09 06:50:20,898 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 06:50:20,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:50:20,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:20,900 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:50:20,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2025-03-09 06:50:20,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:50:20,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:50:20,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:20,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:20,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:50:20,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 06:50:20,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:50:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 06:50:20,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448441357] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:50:20,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:50:20,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-03-09 06:50:20,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169543092] [2025-03-09 06:50:20,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:50:20,975 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:20,975 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:20,975 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:20,975 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:20,975 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:50:20,975 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:20,975 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:20,975 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:20,975 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration8_Loop [2025-03-09 06:50:20,975 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:20,975 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:20,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:20,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:21,004 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:21,004 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:50:21,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,006 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2025-03-09 06:50:21,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2025-03-09 06:50:21,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:21,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:21,023 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:21,024 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:21,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2025-03-09 06:50:21,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,030 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2025-03-09 06:50:21,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2025-03-09 06:50:21,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:21,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:21,048 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:50:21,048 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:50:21,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2025-03-09 06:50:21,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,055 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2025-03-09 06:50:21,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2025-03-09 06:50:21,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:50:21,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:21,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2025-03-09 06:50:21,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,081 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2025-03-09 06:50:21,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2025-03-09 06:50:21,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:50:21,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:50:21,094 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:50:21,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2025-03-09 06:50:21,100 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:50:21,100 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:50:21,100 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:50:21,100 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:50:21,100 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:50:21,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,100 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:50:21,100 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:50:21,100 INFO L132 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration8_Loop [2025-03-09 06:50:21,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:50:21,100 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:50:21,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:21,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:21,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:50:21,131 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:50:21,131 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:50:21,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,133 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2025-03-09 06:50:21,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2025-03-09 06:50:21,134 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 [2025-03-09 06:50:21,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:21,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:21,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:21,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:21,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:21,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:21,149 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:21,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2025-03-09 06:50:21,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,158 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2025-03-09 06:50:21,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2025-03-09 06:50:21,161 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 [2025-03-09 06:50:21,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:21,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:21,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:21,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:21,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:50:21,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:50:21,175 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:50:21,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2025-03-09 06:50:21,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,182 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2025-03-09 06:50:21,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2025-03-09 06:50:21,183 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 [2025-03-09 06:50:21,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:50:21,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:50:21,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:50:21,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:50:21,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:50:21,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:50:21,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:50:21,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:50:21,197 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:50:21,197 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:50:21,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:50:21,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:50:21,199 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2025-03-09 06:50:21,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2025-03-09 06:50:21,202 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:50:21,202 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:50:21,202 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:50:21,202 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 55 Supporting invariants [] [2025-03-09 06:50:21,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2025-03-09 06:50:21,210 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:50:21,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:50:21,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:21,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:21,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:21,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:21,269 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:21,269 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 82 states and 108 transitions. Complement of second has 7 states. [2025-03-09 06:50:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2025-03-09 06:50:21,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2025-03-09 06:50:21,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,288 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:21,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:50:21,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:21,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:21,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:21,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:21,340 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:21,340 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 56 states and 75 transitions. Complement of second has 9 states. [2025-03-09 06:50:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2025-03-09 06:50:21,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2025-03-09 06:50:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,367 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:21,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:50:21,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:21,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:21,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:21,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:21,427 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:21,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 102 states and 142 transitions. Complement of second has 10 states. [2025-03-09 06:50:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2025-03-09 06:50:21,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 6 letters. [2025-03-09 06:50:21,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,448 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-09 06:50:21,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:50:21,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:50:21,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:50:21,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:50:21,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:50:21,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:50:21,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:50:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:50:21,502 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-09 06:50:21,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 45 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 77 states and 102 transitions. Complement of second has 11 states. [2025-03-09 06:50:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-03-09 06:50:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 06:50:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2025-03-09 06:50:21,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 14 letters. Loop has 6 letters. [2025-03-09 06:50:21,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 20 letters. Loop has 6 letters. [2025-03-09 06:50:21,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 14 letters. Loop has 12 letters. [2025-03-09 06:50:21,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:50:21,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 102 transitions. [2025-03-09 06:50:21,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2025-03-09 06:50:21,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 50 states and 66 transitions. [2025-03-09 06:50:21,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2025-03-09 06:50:21,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:50:21,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 66 transitions. [2025-03-09 06:50:21,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:21,523 INFO L218 hiAutomatonCegarLoop]: Abstraction has 50 states and 66 transitions. [2025-03-09 06:50:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 66 transitions. [2025-03-09 06:50:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 28. [2025-03-09 06:50:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 27 states have internal predecessors, (40), 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) [2025-03-09 06:50:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2025-03-09 06:50:21,524 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 40 transitions. [2025-03-09 06:50:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:50:21,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:50:21,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:50:21,524 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2025-03-09 06:50:21,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:50:21,543 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2025-03-09 06:50:21,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 69 transitions. [2025-03-09 06:50:21,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2025-03-09 06:50:21,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 41 states and 49 transitions. [2025-03-09 06:50:21,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-03-09 06:50:21,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2025-03-09 06:50:21,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 49 transitions. [2025-03-09 06:50:21,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:50:21,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 49 transitions. [2025-03-09 06:50:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 49 transitions. [2025-03-09 06:50:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2025-03-09 06:50:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 states have internal predecessors, (41), 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) [2025-03-09 06:50:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2025-03-09 06:50:21,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 41 transitions. [2025-03-09 06:50:21,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:50:21,547 INFO L432 stractBuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2025-03-09 06:50:21,547 INFO L338 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2025-03-09 06:50:21,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2025-03-09 06:50:21,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 06:50:21,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:50:21,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:50:21,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:50:21,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2025-03-09 06:50:21,548 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:21,548 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 10;" "assume 25 == main_~i~0#1;main_~i~0#1 := 30;" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 > 10;" "assume !(25 == main_~i~0#1);" "assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1;" [2025-03-09 06:50:21,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash 37186084, now seen corresponding path program 5 times [2025-03-09 06:50:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:21,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937431368] [2025-03-09 06:50:21,549 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 06:50:21,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:21,550 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:21,551 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:21,551 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:50:21,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,551 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:21,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:21,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:21,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:21,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1134857284, now seen corresponding path program 3 times [2025-03-09 06:50:21,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:21,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799011470] [2025-03-09 06:50:21,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:50:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:21,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 5 equivalence classes. [2025-03-09 06:50:21,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:50:21,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-09 06:50:21,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,567 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:21,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:50:21,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:50:21,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2025-03-09 06:50:21,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:21,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:50:21,576 INFO L85 PathProgramCache]: Analyzing trace with hash -379766847, now seen corresponding path program 8 times [2025-03-09 06:50:21,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:50:21,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267012614] [2025-03-09 06:50:21,576 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:50:21,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:50:21,578 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-03-09 06:50:21,582 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:50:21,582 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:50:21,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,582 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:21,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:50:21,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:50:21,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:21,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:50:21,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:21,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:21,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,661 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:50:21,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:50:21,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:50:21,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:50:21,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:50:21,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 06:50:21 BoogieIcfgContainer [2025-03-09 06:50:21,680 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 06:50:21,680 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:50:21,680 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:50:21,680 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:50:21,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:50:17" (3/4) ... [2025-03-09 06:50:21,684 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 06:50:21,705 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:50:21,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:50:21,707 INFO L158 Benchmark]: Toolchain (without parser) took 4627.69ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 96.4MB in the end (delta: 18.6MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2025-03-09 06:50:21,707 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:50:21,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 109.44ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 105.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:50:21,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 12.22ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:50:21,709 INFO L158 Benchmark]: Boogie Preprocessor took 11.80ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.6MB in the end (delta: 497.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:50:21,710 INFO L158 Benchmark]: IcfgBuilder took 149.23ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 93.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:50:21,710 INFO L158 Benchmark]: BuchiAutomizer took 4314.94ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 99.8MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:50:21,710 INFO L158 Benchmark]: Witness Printer took 25.29ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 96.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:50:21,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 109.44ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 105.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 12.22ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.80ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.6MB in the end (delta: 497.5kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 149.23ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 93.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4314.94ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 99.8MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 25.29ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 96.4MB in the end (delta: 3.4MB). 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 10 terminating modules (2 trivial, 5 deterministic, 3 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -1 * i) + 27) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + 28) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * i) + 27) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function (((long) -2 * i) + 55) and consists of 5 locations. One nondeterministic module has affine ranking function (((long) -1 * i) + 28) and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 55) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 34 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 9 iterations. TraceHistogramMax:5. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 74 StatesRemovedByMinimization, 10 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, 3, 2, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 126 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT6 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax230 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf89 smp100 dnf115 smp96 tf112 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] Loop: [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] Loop: [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 06:50:21,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2025-03-09 06:50:21,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)