./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-crafted/Nyala-2lex-2.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 c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:18:44,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:18:44,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-09 15:18:44,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:18:44,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:18:44,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:18:44,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:18:44,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:18:44,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:18:44,099 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:18:44,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:18:44,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:18:44,100 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:18:44,100 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:18:44,100 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:18:44,100 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:18:44,101 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:18:44,101 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:18:44,101 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:18:44,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:18:44,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:18:44,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:18:44,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:18:44,108 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:18:44,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:18:44,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:18:44,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:18:44,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:18:44,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:18:44,109 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:18:44,109 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb [2024-11-09 15:18:44,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:18:44,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:18:44,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:18:44,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:18:44,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:18:44,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-11-09 15:18:45,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:18:45,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:18:45,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-11-09 15:18:45,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9ab7102/d83df55ea8374760ad058f5c24842538/FLAG20246809b [2024-11-09 15:18:46,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9ab7102/d83df55ea8374760ad058f5c24842538 [2024-11-09 15:18:46,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:18:46,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:18:46,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:18:46,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:18:46,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:18:46,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b29cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46, skipping insertion in model container [2024-11-09 15:18:46,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:18:46,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:18:46,236 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:18:46,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:18:46,258 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:18:46,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46 WrapperNode [2024-11-09 15:18:46,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:18:46,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:18:46,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:18:46,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:18:46,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,278 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-11-09 15:18:46,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:18:46,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:18:46,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:18:46,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:18:46,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,291 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 15:18:46,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:18:46,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:18:46,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:18:46,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:18:46,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (1/1) ... [2024-11-09 15:18:46,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,327 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) [2024-11-09 15:18:46,332 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 [2024-11-09 15:18:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:18:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:18:46,419 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:18:46,420 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:18:46,456 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-09 15:18:46,456 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:18:46,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:18:46,469 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:18:46,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:18:46 BoogieIcfgContainer [2024-11-09 15:18:46,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:18:46,470 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:18:46,470 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:18:46,473 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:18:46,473 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:18:46,473 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:18:46" (1/3) ... [2024-11-09 15:18:46,474 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e0c9c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:18:46, skipping insertion in model container [2024-11-09 15:18:46,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:18:46,474 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:18:46" (2/3) ... [2024-11-09 15:18:46,475 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e0c9c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:18:46, skipping insertion in model container [2024-11-09 15:18:46,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:18:46,475 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:18:46" (3/3) ... [2024-11-09 15:18:46,476 INFO L332 chiAutomizerObserver]: Analyzing ICFG Nyala-2lex-2.c [2024-11-09 15:18:46,522 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:18:46,522 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:18:46,522 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:18:46,522 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:18:46,523 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:18:46,523 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:18:46,523 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:18:46,523 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:18:46,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:46,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:46,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:18:46,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:18:46,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:18:46,540 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:18:46,541 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:18:46,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:46,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:46,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:18:46,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:18:46,542 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:18:46,542 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:18:46,547 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L21-2true [2024-11-09 15:18:46,547 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 5#L21true assume !(main_~y~0#1 < 0); 7#L21-2true [2024-11-09 15:18:46,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:46,551 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-09 15:18:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:46,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733945994] [2024-11-09 15:18:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:46,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:46,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-09 15:18:46,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:46,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235380929] [2024-11-09 15:18:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:46,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:46,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:46,662 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-09 15:18:46,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:46,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135430224] [2024-11-09 15:18:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:46,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:46,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:46,743 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:46,744 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:46,744 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:46,745 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:46,745 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:18:46,745 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,745 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:46,745 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:46,746 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2024-11-09 15:18:46,746 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:46,746 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:46,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:46,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:46,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:46,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:46,847 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:46,848 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:18:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,851 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) [2024-11-09 15:18:46,852 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 [2024-11-09 15:18:46,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:46,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:46,876 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:46,876 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:46,886 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 [2024-11-09 15:18:46,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,889 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) [2024-11-09 15:18:46,890 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 [2024-11-09 15:18:46,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:46,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:46,909 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:46,909 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:46,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-09 15:18:46,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,922 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) [2024-11-09 15:18:46,926 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 [2024-11-09 15:18:46,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:46,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:46,947 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:46,948 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:46,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:46,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,960 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) [2024-11-09 15:18:46,961 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 [2024-11-09 15:18:46,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:46,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:46,983 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 [2024-11-09 15:18:46,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:46,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:46,986 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) [2024-11-09 15:18:46,987 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 [2024-11-09 15:18:46,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:18:46,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:47,045 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:18:47,049 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 [2024-11-09 15:18:47,050 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:47,050 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:47,050 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:47,050 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:47,050 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:18:47,050 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,050 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:47,050 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:47,050 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2024-11-09 15:18:47,051 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:47,051 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:47,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:47,111 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:18:47,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,114 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) [2024-11-09 15:18:47,115 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 [2024-11-09 15:18:47,116 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 [2024-11-09 15:18:47,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:18:47,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:18:47,134 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:47,144 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 [2024-11-09 15:18:47,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,146 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) [2024-11-09 15:18:47,146 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 [2024-11-09 15:18:47,147 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 [2024-11-09 15:18:47,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:18:47,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:18:47,163 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:47,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-09 15:18:47,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,177 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) [2024-11-09 15:18:47,178 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 [2024-11-09 15:18:47,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:18:47,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:47,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:47,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:47,193 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:47,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-09 15:18:47,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,205 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) [2024-11-09 15:18:47,206 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 [2024-11-09 15:18:47,207 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 [2024-11-09 15:18:47,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:47,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:47,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:47,220 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:18:47,222 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-09 15:18:47,222 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:18:47,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,225 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) [2024-11-09 15:18:47,226 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 [2024-11-09 15:18:47,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:18:47,227 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:18:47,227 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:18:47,227 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-09 15:18:47,238 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 [2024-11-09 15:18:47,240 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:18:47,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:47,267 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:47,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:47,281 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:47,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:47,322 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 [2024-11-09 15:18:47,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2024-11-09 15:18:47,351 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 18 states and 26 transitions. Complement of second has 6 states. [2024-11-09 15:18:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-09 15:18:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2024-11-09 15:18:47,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-09 15:18:47,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-09 15:18:47,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-09 15:18:47,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-09 15:18:47,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 26 transitions. [2024-11-09 15:18:47,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:47,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 8 states and 10 transitions. [2024-11-09 15:18:47,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-09 15:18:47,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-09 15:18:47,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2024-11-09 15:18:47,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:18:47,368 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-09 15:18:47,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2024-11-09 15:18:47,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-09 15:18:47,385 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) [2024-11-09 15:18:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-11-09 15:18:47,386 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-09 15:18:47,386 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-09 15:18:47,386 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 15:18:47,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-11-09 15:18:47,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:47,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:18:47,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:18:47,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-09 15:18:47,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:18:47,388 INFO L745 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 68#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 64#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 63#L21-2 [2024-11-09 15:18:47,388 INFO L747 eck$LassoCheckResult]: Loop: 63#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 62#L21 assume !(main_~y~0#1 < 0); 63#L21-2 [2024-11-09 15:18:47,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-09 15:18:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829074273] [2024-11-09 15:18:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-11-09 15:18:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899204413] [2024-11-09 15:18:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-11-09 15:18:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918363501] [2024-11-09 15:18:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,433 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:47,434 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:47,434 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:47,434 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:47,434 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:18:47,434 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,434 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:47,434 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:47,434 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2024-11-09 15:18:47,434 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:47,434 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:47,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,479 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:47,479 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:18:47,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,481 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) [2024-11-09 15:18:47,482 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 [2024-11-09 15:18:47,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:47,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:47,501 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:47,501 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: [] [2024-11-09 15:18:47,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-09 15:18:47,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,514 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) [2024-11-09 15:18:47,514 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 [2024-11-09 15:18:47,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:47,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:47,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-09 15:18:47,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,537 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) [2024-11-09 15:18:47,538 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 [2024-11-09 15:18:47,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:18:47,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:47,595 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:18:47,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:47,600 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:47,600 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:47,600 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:47,600 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:47,600 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:18:47,600 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,600 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:47,600 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:47,600 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2024-11-09 15:18:47,600 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:47,600 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:47,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,648 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:47,648 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:18:47,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,650 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) [2024-11-09 15:18:47,651 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 [2024-11-09 15:18:47,651 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 [2024-11-09 15:18:47,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:18:47,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:18:47,666 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:47,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:47,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,680 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) [2024-11-09 15:18:47,682 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 [2024-11-09 15:18:47,684 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 [2024-11-09 15:18:47,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:47,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:47,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:47,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:47,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:47,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:47,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:47,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:18:47,699 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-09 15:18:47,699 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:18:47,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,702 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) [2024-11-09 15:18:47,703 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 [2024-11-09 15:18:47,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:18:47,703 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:18:47,703 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:18:47,704 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-09 15:18:47,714 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 [2024-11-09 15:18:47,715 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:18:47,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:47,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:47,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:47,744 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:47,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:47,755 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 [2024-11-09 15:18:47,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:47,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2024-11-09 15:18:47,762 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 [2024-11-09 15:18:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-09 15:18:47,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-09 15:18:47,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-09 15:18:47,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-09 15:18:47,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:47,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2024-11-09 15:18:47,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:47,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2024-11-09 15:18:47,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-09 15:18:47,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-09 15:18:47,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-09 15:18:47,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:18:47,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-09 15:18:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-09 15:18:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-09 15:18:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:47,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-11-09 15:18:47,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-09 15:18:47,775 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-09 15:18:47,775 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 15:18:47,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-11-09 15:18:47,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-09 15:18:47,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:18:47,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:18:47,786 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-09 15:18:47,786 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:18:47,786 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 126#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 127#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 125#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 121#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 120#L21-2 [2024-11-09 15:18:47,787 INFO L747 eck$LassoCheckResult]: Loop: 120#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 119#L21 assume !(main_~y~0#1 < 0); 120#L21-2 [2024-11-09 15:18:47,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2024-11-09 15:18:47,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259864741] [2024-11-09 15:18:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-11-09 15:18:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058654526] [2024-11-09 15:18:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:47,809 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2024-11-09 15:18:47,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:47,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918553453] [2024-11-09 15:18:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:47,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:47,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-09 15:18:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:47,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:47,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-09 15:18:47,875 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:47,875 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:47,875 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:47,875 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:47,875 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:18:47,875 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,875 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:47,875 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:47,875 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2024-11-09 15:18:47,875 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:47,875 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:47,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:47,919 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:47,919 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:18:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,921 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) [2024-11-09 15:18:47,922 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 [2024-11-09 15:18:47,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:47,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:47,943 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 [2024-11-09 15:18:47,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:47,944 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) [2024-11-09 15:18:47,945 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 [2024-11-09 15:18:47,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:18:47,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,004 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:18:48,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-09 15:18:48,009 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:48,009 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:48,009 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:48,009 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:48,009 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:18:48,009 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,009 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:48,009 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:48,009 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2024-11-09 15:18:48,009 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:48,009 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:48,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,053 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:48,053 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:18:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,055 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-09 15:18:48,058 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 [2024-11-09 15:18:48,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:48,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:48,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:48,071 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:18:48,074 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:18:48,074 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 15:18:48,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-09 15:18:48,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:18:48,078 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:18:48,078 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:18:48,078 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-09 15:18:48,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,088 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:18:48,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,121 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:48,132 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 [2024-11-09 15:18:48,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2024-11-09 15:18:48,139 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 [2024-11-09 15:18:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-09 15:18:48,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-09 15:18:48,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,140 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 15:18:48,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,161 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:48,174 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-09 15:18:48,174 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2024-11-09 15:18:48,184 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 [2024-11-09 15:18:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-09 15:18:48,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-09 15:18:48,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,184 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 15:18:48,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,207 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:48,218 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-09 15:18:48,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2024-11-09 15:18:48,230 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 [2024-11-09 15:18:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-09 15:18:48,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-09 15:18:48,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-09 15:18:48,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-09 15:18:48,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-11-09 15:18:48,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-09 15:18:48,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2024-11-09 15:18:48,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-09 15:18:48,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-09 15:18:48,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2024-11-09 15:18:48,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:18:48,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-09 15:18:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2024-11-09 15:18:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-11-09 15:18:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-11-09 15:18:48,234 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-09 15:18:48,234 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-09 15:18:48,235 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 15:18:48,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-11-09 15:18:48,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-09 15:18:48,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:18:48,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:18:48,235 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-09 15:18:48,236 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-09 15:18:48,236 INFO L745 eck$LassoCheckResult]: Stem: 274#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 277#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 271#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 273#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 276#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 270#L21-2 [2024-11-09 15:18:48,236 INFO L747 eck$LassoCheckResult]: Loop: 270#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 268#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 270#L21-2 [2024-11-09 15:18:48,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,236 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 3 times [2024-11-09 15:18:48,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239467710] [2024-11-09 15:18:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:48,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2024-11-09 15:18:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:48,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073332210] [2024-11-09 15:18:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:48,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:48,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 295744364, now seen corresponding path program 4 times [2024-11-09 15:18:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:18:48,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101633316] [2024-11-09 15:18:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:18:48,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:18:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:18:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:18:48,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:18:48,277 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:48,277 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:48,278 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:48,278 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:48,278 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:18:48,278 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,278 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:48,278 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:48,278 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2024-11-09 15:18:48,278 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:48,278 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:48,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,325 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:48,325 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:18:48,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,327 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-09 15:18:48,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:48,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,339 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:48,339 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:48,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-09 15:18:48,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,351 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-09 15:18:48,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:48,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,370 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:48,370 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:48,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,382 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-09 15:18:48,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:48,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,401 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:48,401 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:48,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-09 15:18:48,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,412 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-09 15:18:48,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:48,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,424 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:18:48,424 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:18:48,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,435 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-09 15:18:48,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:18:48,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,458 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-09 15:18:48,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:18:48,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:18:48,485 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:18:48,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,489 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:18:48,490 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:18:48,490 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:18:48,490 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:18:48,490 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:18:48,490 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,490 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:18:48,490 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:18:48,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2024-11-09 15:18:48,490 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:18:48,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:18:48,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:18:48,549 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:18:48,550 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:18:48,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,551 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-09 15:18:48,553 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 [2024-11-09 15:18:48,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:48,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:48,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:48,565 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:48,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,577 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-09 15:18:48,578 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 [2024-11-09 15:18:48,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:18:48,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:18:48,592 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:48,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-09 15:18:48,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,604 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-09 15:18:48,605 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 [2024-11-09 15:18:48,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:18:48,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:18:48,619 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:48,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,631 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-09 15:18:48,633 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 [2024-11-09 15:18:48,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:48,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:48,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:48,645 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:18:48,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-09 15:18:48,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,656 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-09 15:18:48,658 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 [2024-11-09 15:18:48,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:18:48,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:18:48,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:18:48,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:18:48,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:18:48,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:18:48,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:18:48,671 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:18:48,673 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:18:48,673 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:18:48,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:18:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:18:48,674 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:18:48,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-09 15:18:48,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:18:48,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:18:48,676 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:18:48,676 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-11-09 15:18:48,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,687 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:18:48,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:18:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:18:48,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:18:48,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:18:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:18:48,733 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 [2024-11-09 15:18:48,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2024-11-09 15:18:48,744 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 [2024-11-09 15:18:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:18:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-09 15:18:48,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-09 15:18:48,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-09 15:18:48,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-09 15:18:48,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:18:48,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-11-09 15:18:48,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:18:48,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-11-09 15:18:48,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-09 15:18:48,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-09 15:18:48,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-09 15:18:48,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:18:48,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:18:48,746 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:18:48,746 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:18:48,746 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 15:18:48,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-09 15:18:48,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:18:48,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-09 15:18:48,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:18:48 BoogieIcfgContainer [2024-11-09 15:18:48,752 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:18:48,753 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:18:48,753 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:18:48,753 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:18:48,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:18:46" (3/4) ... [2024-11-09 15:18:48,755 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 15:18:48,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:18:48,756 INFO L158 Benchmark]: Toolchain (without parser) took 2698.51ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 65.2MB in the beginning and 83.6MB in the end (delta: -18.3MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,756 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:18:48,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.42ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 65.1MB in the beginning and 150.5MB in the end (delta: -85.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.65ms. Allocated memory is still 180.4MB. Free memory was 150.5MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,757 INFO L158 Benchmark]: Boogie Preprocessor took 18.28ms. Allocated memory is still 180.4MB. Free memory was 148.4MB in the beginning and 147.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,757 INFO L158 Benchmark]: RCFGBuilder took 171.46ms. Allocated memory is still 180.4MB. Free memory was 147.3MB in the beginning and 137.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,757 INFO L158 Benchmark]: BuchiAutomizer took 2282.60ms. Allocated memory is still 180.4MB. Free memory was 137.9MB in the beginning and 83.6MB in the end (delta: 54.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2024-11-09 15:18:48,758 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 180.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:18:48,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.42ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 65.1MB in the beginning and 150.5MB in the end (delta: -85.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.65ms. Allocated memory is still 180.4MB. Free memory was 150.5MB in the beginning and 148.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.28ms. Allocated memory is still 180.4MB. Free memory was 148.4MB in the beginning and 147.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 171.46ms. Allocated memory is still 180.4MB. Free memory was 147.3MB in the beginning and 137.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2282.60ms. Allocated memory is still 180.4MB. Free memory was 137.9MB in the beginning and 83.6MB in the end (delta: 54.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 180.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 28 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-09 15:18:48,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:48,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-09 15:18:49,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE