./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/Log.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 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:36:00,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:36:00,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-04 15:36:00,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:36:00,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:36:00,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:36:00,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:36:00,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:36:00,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:36:00,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:36:00,207 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:36:00,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:36:00,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:36:00,208 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:36:00,208 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:36:00,208 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:36:00,208 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:36:00,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:36:00,209 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:36:00,210 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:36:00,210 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:36:00,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:36:00,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:36:00,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:36:00,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:36:00,211 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:36:00,211 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 -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2025-03-04 15:36:00,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:36:00,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:36:00,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:36:00,460 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:36:00,461 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:36:00,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Log.c [2025-03-04 15:36:01,549 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7cc79bf/df6bc403364f46e09631a88fd58d25fb/FLAGe7a0e82da [2025-03-04 15:36:01,813 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:36:01,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Log.c [2025-03-04 15:36:01,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7cc79bf/df6bc403364f46e09631a88fd58d25fb/FLAGe7a0e82da [2025-03-04 15:36:02,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7cc79bf/df6bc403364f46e09631a88fd58d25fb [2025-03-04 15:36:02,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:36:02,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:36:02,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:36:02,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:36:02,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:36:02,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d055b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02, skipping insertion in model container [2025-03-04 15:36:02,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:36:02,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:36:02,244 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:36:02,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:36:02,263 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:36:02,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02 WrapperNode [2025-03-04 15:36:02,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:36:02,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:36:02,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:36:02,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:36:02,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,283 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2025-03-04 15:36:02,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:36:02,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:36:02,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:36:02,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:36:02,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,295 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 15:36:02,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:36:02,300 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:36:02,301 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:36:02,301 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:36:02,301 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (1/1) ... [2025-03-04 15:36:02,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:02,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:02,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:02,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 15:36:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:36:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:36:02,396 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:36:02,397 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:36:02,436 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-03-04 15:36:02,436 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:36:02,442 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:36:02,442 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:36:02,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:36:02 BoogieIcfgContainer [2025-03-04 15:36:02,442 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:36:02,443 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:36:02,443 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:36:02,448 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:36:02,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:36:02,448 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:36:02" (1/3) ... [2025-03-04 15:36:02,449 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75a1eb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:36:02, skipping insertion in model container [2025-03-04 15:36:02,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:36:02,449 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:36:02" (2/3) ... [2025-03-04 15:36:02,449 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75a1eb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:36:02, skipping insertion in model container [2025-03-04 15:36:02,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:36:02,449 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:36:02" (3/3) ... [2025-03-04 15:36:02,450 INFO L363 chiAutomizerObserver]: Analyzing ICFG Log.c [2025-03-04 15:36:02,484 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:36:02,485 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:36:02,485 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:36:02,485 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:36:02,485 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:36:02,485 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:36:02,485 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:36:02,485 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:36:02,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:02,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-04 15:36:02,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:36:02,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:36:02,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 15:36:02,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-04 15:36:02,502 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:36:02,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:02,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-04 15:36:02,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:36:02,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:36:02,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 15:36:02,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-04 15:36:02,509 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" [2025-03-04 15:36:02,509 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 1;main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume !(main_~xtmp~0#1 > 1);main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" [2025-03-04 15:36:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-03-04 15:36:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:02,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805790525] [2025-03-04 15:36:02,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:02,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:02,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:02,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:02,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,565 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:02,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:02,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:02,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:02,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2025-03-04 15:36:02,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:02,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433461991] [2025-03-04 15:36:02,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:02,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:02,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:02,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:02,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:36:02,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:36:02,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433461991] [2025-03-04 15:36:02,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433461991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:36:02,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:36:02,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:36:02,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406878111] [2025-03-04 15:36:02,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:36:02,643 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 15:36:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:36:02,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:36:02,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:36:02,663 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:02,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 15:36:02,677 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2025-03-04 15:36:02,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2025-03-04 15:36:02,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:36:02,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 5 states and 6 transitions. [2025-03-04 15:36:02,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-03-04 15:36:02,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-03-04 15:36:02,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2025-03-04 15:36:02,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:36:02,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-03-04 15:36:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2025-03-04 15:36:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2025-03-04 15:36:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2025-03-04 15:36:02,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-03-04 15:36:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:36:02,703 INFO L432 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-03-04 15:36:02,703 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:36:02,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2025-03-04 15:36:02,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:36:02,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:36:02,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:36:02,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 15:36:02,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:36:02,704 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_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" [2025-03-04 15:36:02,704 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 1;main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume main_~xtmp~0#1 > 1;main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" "assume !(main_~xtmp~0#1 > 1);main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" [2025-03-04 15:36:02,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 2 times [2025-03-04 15:36:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673454535] [2025-03-04 15:36:02,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:36:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:02,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:02,712 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:02,712 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:36:02,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:02,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:02,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:02,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:02,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:02,715 INFO L85 PathProgramCache]: Analyzing trace with hash 34723, now seen corresponding path program 1 times [2025-03-04 15:36:02,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:02,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454559228] [2025-03-04 15:36:02,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:02,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:02,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:02,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:02,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,722 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:02,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:02,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:02,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:02,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 35277476, now seen corresponding path program 1 times [2025-03-04 15:36:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:02,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397973909] [2025-03-04 15:36:02,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:02,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:02,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:36:02,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:36:02,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,733 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:02,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:36:02,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:36:02,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:02,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:02,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:02,851 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:02,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:02,852 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:02,852 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:02,852 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:36:02,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:02,852 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:02,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:02,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2025-03-04 15:36:02,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:02,852 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:02,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:02,958 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:02,959 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:36:02,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:02,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:02,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:02,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 15:36:02,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:02,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:02,983 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 [2025-03-04 15:36:02,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:02,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:02,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:02,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 15:36:02,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:36:02,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,013 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:36:03,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,017 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:03,017 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:03,017 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:03,017 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:03,017 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:36:03,017 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,017 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:03,017 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:03,017 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2025-03-04 15:36:03,017 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:03,017 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:03,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,092 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:03,095 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:36:03,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 15:36:03,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:36:03,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:36:03,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:36:03,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:36:03,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:36:03,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:36:03,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:36:03,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:36:03,121 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:36:03,124 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:36:03,127 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 15:36:03,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 15:36:03,135 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:36:03,135 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:36:03,135 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:36:03,135 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2025-03-04 15:36:03,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 15:36:03,143 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:36:03,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 15:36:03,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 15:36:03,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:03,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:36:03,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:03,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:03,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:03,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:03,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:36:03,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:36:03,200 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 [2025-03-04 15:36:03,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2025-03-04 15:36:03,224 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) Result 8 states and 11 transitions. Complement of second has 4 states. [2025-03-04 15:36:03,225 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 [2025-03-04 15:36:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2025-03-04 15:36:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2025-03-04 15:36:03,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-04 15:36:03,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-04 15:36:03,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2025-03-04 15:36:03,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2025-03-04 15:36:03,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:36:03,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2025-03-04 15:36:03,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-04 15:36:03,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-03-04 15:36:03,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2025-03-04 15:36:03,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 15:36:03,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-04 15:36:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2025-03-04 15:36:03,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2025-03-04 15:36:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2025-03-04 15:36:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2025-03-04 15:36:03,236 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-03-04 15:36:03,236 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-03-04 15:36:03,236 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 15:36:03,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2025-03-04 15:36:03,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:36:03,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:36:03,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:36:03,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:36:03,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:36:03,237 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_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" "assume main_~x~0#1 > 1;main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" [2025-03-04 15:36:03,239 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 > 1;main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" [2025-03-04 15:36:03,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,239 INFO L85 PathProgramCache]: Analyzing trace with hash 36709, now seen corresponding path program 1 times [2025-03-04 15:36:03,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:03,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080265757] [2025-03-04 15:36:03,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:03,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:03,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:03,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:03,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,248 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:03,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:03,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:03,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:03,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-03-04 15:36:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:03,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739603251] [2025-03-04 15:36:03,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:03,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:03,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:03,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:03,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,258 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:03,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:03,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:03,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:03,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1137983, now seen corresponding path program 1 times [2025-03-04 15:36:03,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:03,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068549606] [2025-03-04 15:36:03,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:36:03,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:03,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:36:03,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:36:03,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,271 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:03,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:36:03,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:36:03,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:03,296 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:03,297 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:03,297 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:03,297 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:03,297 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:36:03,297 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,297 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:03,297 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:03,297 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2025-03-04 15:36:03,297 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:03,297 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:03,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-04 15:36:03,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,371 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:03,371 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:36:03,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 15:36:03,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:03,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,393 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:36:03,393 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 15:36:03,399 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 [2025-03-04 15:36:03,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 15:36:03,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:03,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 15:36:03,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:36:03,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,446 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:36:03,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,450 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:03,450 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:03,450 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:03,450 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:03,450 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:36:03,450 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,450 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:03,450 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:03,450 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2025-03-04 15:36:03,450 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:03,450 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:03,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,499 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:03,499 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:36:03,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,502 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 15:36:03,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:36:03,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:36:03,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:36:03,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:36:03,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:36:03,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:36:03,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:36:03,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:36:03,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:36:03,521 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-04 15:36:03,521 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 15:36:03,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-04 15:36:03,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:36:03,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:36:03,526 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:36:03,527 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2025-03-04 15:36:03,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:36:03,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:36:03,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:36:03,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:03,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:36:03,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:03,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:03,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:03,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:03,579 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:36:03,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:36:03,580 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:36:03,580 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:03,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 3 states. [2025-03-04 15:36:03,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-04 15:36:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:03,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-03-04 15:36:03,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2025-03-04 15:36:03,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2025-03-04 15:36:03,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2025-03-04 15:36:03,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:03,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2025-03-04 15:36:03,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:36:03,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 12 transitions. [2025-03-04 15:36:03,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-03-04 15:36:03,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-03-04 15:36:03,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2025-03-04 15:36:03,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 15:36:03,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-03-04 15:36:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2025-03-04 15:36:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2025-03-04 15:36:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2025-03-04 15:36:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2025-03-04 15:36:03,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2025-03-04 15:36:03,588 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2025-03-04 15:36:03,588 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 15:36:03,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2025-03-04 15:36:03,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:36:03,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:36:03,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:36:03,589 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2025-03-04 15:36:03,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:36:03,589 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_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" "assume main_~x~0#1 > 1;main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume main_~xtmp~0#1 > 1;main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" "assume !(main_~xtmp~0#1 > 1);main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" "assume main_~x~0#1 > 1;main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" [2025-03-04 15:36:03,589 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 > 1;main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" [2025-03-04 15:36:03,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1093601761, now seen corresponding path program 2 times [2025-03-04 15:36:03,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775316799] [2025-03-04 15:36:03,590 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:36:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:03,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-03-04 15:36:03,596 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:36:03,596 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:36:03,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:36:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:36:03,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775316799] [2025-03-04 15:36:03,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775316799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:36:03,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:36:03,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:36:03,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775610588] [2025-03-04 15:36:03,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:36:03,613 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-04 15:36:03,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:03,614 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 2 times [2025-03-04 15:36:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:36:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331436267] [2025-03-04 15:36:03,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:36:03,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:36:03,616 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:03,617 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:03,617 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:36:03,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,617 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:36:03,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:03,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:03,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:03,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:36:03,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:36:03,644 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:03,644 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:03,644 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:03,644 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:03,644 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:36:03,644 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,644 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:03,644 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:03,644 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2025-03-04 15:36:03,644 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:03,644 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:03,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,691 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:03,691 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:36:03,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-04 15:36:03,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:03,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,767 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-04 15:36:03,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:36:03,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,793 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:36:03,793 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=0}, {ULTIMATE.start_main_~restmp~0#1=5}, {ULTIMATE.start_main_~restmp~0#1=-4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-03-04 15:36:03,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-04 15:36:03,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:03,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,821 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:36:03,821 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: [] [2025-03-04 15:36:03,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,829 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-04 15:36:03,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:36:03,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-03-04 15:36:03,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,848 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-04 15:36:03,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:36:03,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:36:03,871 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:36:03,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-03-04 15:36:03,876 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:36:03,876 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:36:03,876 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:36:03,876 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:36:03,876 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:36:03,876 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,876 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:36:03,876 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:36:03,876 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2025-03-04 15:36:03,876 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:36:03,876 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:36:03,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:36:03,921 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:36:03,921 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:36:03,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,925 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-04 15:36:03,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:36:03,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:36:03,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:36:03,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:36:03,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:36:03,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:36:03,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:36:03,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:36:03,943 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:36:03,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:03,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,952 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-04 15:36:03,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:36:03,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:36:03,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:36:03,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:36:03,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:36:03,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:36:03,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:36:03,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:36:03,979 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 [2025-03-04 15:36:03,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:03,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:03,981 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:03,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-04 15:36:03,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:36:03,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:36:03,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:36:03,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:36:03,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:36:03,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:36:03,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:36:03,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:36:03,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:36:03,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:36:03,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 15:36:03,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:36:04,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:36:04,004 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:36:04,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-04 15:36:04,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:36:04,006 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:36:04,006 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:36:04,006 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2025-03-04 15:36:04,012 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 [2025-03-04 15:36:04,012 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:36:04,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:04,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:36:04,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:36:04,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:04,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:04,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,045 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:36:04,046 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:36:04,046 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,051 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 9 states and 12 transitions. Complement of second has 3 states. [2025-03-04 15:36:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-04 15:36:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-03-04 15:36:04,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2025-03-04 15:36:04,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:04,052 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 15:36:04,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:04,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:36:04,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:36:04,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:04,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:04,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,079 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:36:04,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:36:04,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 9 states and 12 transitions. Complement of second has 3 states. [2025-03-04 15:36:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-04 15:36:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-03-04 15:36:04,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2025-03-04 15:36:04,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:04,086 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 15:36:04,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:36:04,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:36:04,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:36:04,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:36:04,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:36:04,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:36:04,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:36:04,120 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:36:04,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:36:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:36:04,120 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:36:04,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,126 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 8 states and 10 transitions. Complement of second has 2 states. [2025-03-04 15:36:04,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-04 15:36:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2025-03-04 15:36:04,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 6 letters. Loop has 1 letters. [2025-03-04 15:36:04,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:04,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 7 letters. Loop has 1 letters. [2025-03-04 15:36:04,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:04,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2025-03-04 15:36:04,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:36:04,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2025-03-04 15:36:04,129 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:36:04,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2025-03-04 15:36:04,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:36:04,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:36:04,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:36:04,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:36:04,129 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:36:04,129 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:36:04,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:36:04,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:36:04,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:36:04,130 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:36:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 15:36:04,130 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:36:04,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:36:04,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:36:04,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:36:04,130 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 15:36:04,130 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-04 15:36:04,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:36:04,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:36:04,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:36:04,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:36:04 BoogieIcfgContainer [2025-03-04 15:36:04,138 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:36:04,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:36:04,139 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:36:04,139 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:36:04,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:36:02" (3/4) ... [2025-03-04 15:36:04,141 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:36:04,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:36:04,142 INFO L158 Benchmark]: Toolchain (without parser) took 1999.08ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 69.4MB in the end (delta: 41.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2025-03-04 15:36:04,143 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:36:04,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 120.39ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 101.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:36:04,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.18ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:36:04,143 INFO L158 Benchmark]: Boogie Preprocessor took 14.62ms. Allocated memory is still 142.6MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:36:04,144 INFO L158 Benchmark]: IcfgBuilder took 142.26ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 90.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:36:04,144 INFO L158 Benchmark]: BuchiAutomizer took 1694.81ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 70.2MB in the end (delta: 20.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2025-03-04 15:36:04,145 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 69.4MB in the end (delta: 758.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:36:04,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 120.39ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 101.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.18ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.62ms. Allocated memory is still 142.6MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 142.26ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 90.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1694.81ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 70.2MB in the end (delta: 20.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 69.4MB in the end (delta: 758.9kB). 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function xtmp and consists of 2 locations. One nondeterministic module has affine ranking function xtmp and consists of 2 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 25 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax172 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:36:04,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-03-04 15:36:04,355 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 [2025-03-04 15:36:04,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE