./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.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 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:54:43,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:54:43,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:54:43,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:54:43,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:54:43,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:54:43,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:54:43,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:54:43,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:54:43,090 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:54:43,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:54:43,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:54:43,090 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:54:43,091 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:54:43,091 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:54:43,091 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:54:43,091 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:54:43,091 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:54:43,091 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:54:43,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:54:43,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:54:43,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:54:43,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:54:43,095 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:54:43,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:54:43,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:54:43,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:54:43,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:54:43,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:54:43,097 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:54:43,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 [2024-10-13 16:54:43,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:54:43,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:54:43,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:54:43,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:54:43,333 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:54:43,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c [2024-10-13 16:54:44,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:54:44,795 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:54:44,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c [2024-10-13 16:54:44,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3281b136a/da6c3c749f3f4ba3bc2807b1027e4256/FLAGd348f1982 [2024-10-13 16:54:45,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3281b136a/da6c3c749f3f4ba3bc2807b1027e4256 [2024-10-13 16:54:45,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:54:45,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:54:45,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:54:45,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:54:45,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:54:45,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2121527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:54:45,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:54:45,355 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:54:45,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:54:45,374 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:54:45,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45 WrapperNode [2024-10-13 16:54:45,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:54:45,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:54:45,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:54:45,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:54:45,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,396 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-10-13 16:54:45,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:54:45,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:54:45,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:54:45,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:54:45,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,413 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:54:45,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,416 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,423 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:54:45,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:54:45,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:54:45,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:54:45,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:45,453 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) [2024-10-13 16:54:45,484 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 [2024-10-13 16:54:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:54:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:54:45,581 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:54:45,582 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:54:45,641 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-13 16:54:45,642 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:54:45,649 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:54:45,649 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 16:54:45,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45 BoogieIcfgContainer [2024-10-13 16:54:45,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:54:45,651 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:54:45,651 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:54:45,653 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:54:45,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:54:45" (1/3) ... [2024-10-13 16:54:45,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ac11805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (2/3) ... [2024-10-13 16:54:45,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ac11805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45" (3/3) ... [2024-10-13 16:54:45,656 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04.c [2024-10-13 16:54:45,692 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:54:45,693 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:54:45,693 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:54:45,693 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:54:45,693 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:54:45,693 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:54:45,693 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:54:45,693 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:54:45,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:54:45,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:54:45,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:45,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:45,713 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:54:45,713 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:54:45,713 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:54:45,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:54:45,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:54:45,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:45,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:45,714 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:54:45,714 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:54:45,719 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L16-2true [2024-10-13 16:54:45,720 INFO L747 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 > 5); 2#L16true assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 8#L16-2true [2024-10-13 16:54:45,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 16:54:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:45,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186310655] [2024-10-13 16:54:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:45,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:45,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-10-13 16:54:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45315500] [2024-10-13 16:54:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:45,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-10-13 16:54:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:45,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807866814] [2024-10-13 16:54:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:45,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:45,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:45,874 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:45,875 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:45,875 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:45,875 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:45,875 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:45,875 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,876 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:45,876 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:45,876 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2024-10-13 16:54:45,876 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:45,876 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:45,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:45,921 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:45,921 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:45,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:45,924 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) [2024-10-13 16:54:45,925 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 [2024-10-13 16:54:45,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:45,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:45,951 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 [2024-10-13 16:54:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:45,955 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) [2024-10-13 16:54:45,956 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 [2024-10-13 16:54:45,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:45,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:45,971 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:54:45,983 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 [2024-10-13 16:54:45,983 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:45,983 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:45,984 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:45,984 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:45,984 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:54:45,984 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,984 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:45,984 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:45,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2024-10-13 16:54:45,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:45,984 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:45,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,010 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:46,015 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:54:46,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,017 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) [2024-10-13 16:54:46,019 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 [2024-10-13 16:54:46,020 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 [2024-10-13 16:54:46,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:54:46,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:54:46,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:54:46,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:54:46,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:54:46,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:54:46,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:54:46,035 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:54:46,047 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:54:46,048 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:54:46,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,055 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) [2024-10-13 16:54:46,056 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 [2024-10-13 16:54:46,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:54:46,057 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:54:46,058 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:54:46,059 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-13 16:54:46,069 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 [2024-10-13 16:54:46,073 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:54:46,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,100 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,114 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:46,153 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 16:54:46,155 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-10-13 16:54:46,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 33 states and 49 transitions. Complement of second has 6 states. [2024-10-13 16:54:46,201 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 [2024-10-13 16:54:46,206 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) [2024-10-13 16:54:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-10-13 16:54:46,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-13 16:54:46,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:46,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-13 16:54:46,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:46,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-13 16:54:46,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:46,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2024-10-13 16:54:46,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:54:46,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 15 states and 21 transitions. [2024-10-13 16:54:46,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-13 16:54:46,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-13 16:54:46,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-10-13 16:54:46,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:54:46,218 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-13 16:54:46,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-10-13 16:54:46,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-13 16:54:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:54:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2024-10-13 16:54:46,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-13 16:54:46,281 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-13 16:54:46,282 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 16:54:46,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2024-10-13 16:54:46,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:54:46,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:46,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:46,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-13 16:54:46,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-13 16:54:46,285 INFO L745 eck$LassoCheckResult]: Stem: 91#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 93#L16-2 assume !!(main_~x~0#1 > 5); 80#L16 assume 10 != main_~x~0#1; 81#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-13 16:54:46,285 INFO L747 eck$LassoCheckResult]: Loop: 85#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 89#L16-2 assume !!(main_~x~0#1 > 5); 90#L16 assume 10 != main_~x~0#1; 84#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-13 16:54:46,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-13 16:54:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807844919] [2024-10-13 16:54:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:46,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:54:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807844919] [2024-10-13 16:54:46,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807844919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:54:46,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:54:46,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:54:46,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965270209] [2024-10-13 16:54:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:54:46,379 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-13 16:54:46,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1738900, now seen corresponding path program 1 times [2024-10-13 16:54:46,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916603820] [2024-10-13 16:54:46,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:46,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:54:46,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916603820] [2024-10-13 16:54:46,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916603820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:54:46,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:54:46,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:54:46,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301402485] [2024-10-13 16:54:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:54:46,433 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 16:54:46,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:54:46,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:54:46,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:54:46,436 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 2 states have (on average 2.0) 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) [2024-10-13 16:54:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 16:54:46,466 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-10-13 16:54:46,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-10-13 16:54:46,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-13 16:54:46,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2024-10-13 16:54:46,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-13 16:54:46,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-13 16:54:46,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2024-10-13 16:54:46,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:54:46,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-10-13 16:54:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2024-10-13 16:54:46,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-13 16:54:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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) [2024-10-13 16:54:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-13 16:54:46,473 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-13 16:54:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:54:46,476 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-13 16:54:46,476 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 16:54:46,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-13 16:54:46,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:54:46,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:46,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:46,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-13 16:54:46,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:54:46,481 INFO L745 eck$LassoCheckResult]: Stem: 122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 126#L16-2 assume !!(main_~x~0#1 > 5); 116#L16 assume 10 != main_~x~0#1; 117#L17 [2024-10-13 16:54:46,481 INFO L747 eck$LassoCheckResult]: Loop: 117#L17 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 120#L17-2 assume !(main_~x~0#1 == main_~x~0#1 - 1); 121#L17-4 havoc main_#t~bitwise1#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise1#1 >= -2147483648; 127#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 124#L16-2 assume !!(main_~x~0#1 > 5); 125#L16 assume 10 != main_~x~0#1; 117#L17 [2024-10-13 16:54:46,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-13 16:54:46,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416893707] [2024-10-13 16:54:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1454393131, now seen corresponding path program 1 times [2024-10-13 16:54:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430762180] [2024-10-13 16:54:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 981190608, now seen corresponding path program 1 times [2024-10-13 16:54:46,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099808998] [2024-10-13 16:54:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,684 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:46,684 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:46,684 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:46,684 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:46,685 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:46,685 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,685 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:46,685 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:46,685 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2024-10-13 16:54:46,685 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:46,685 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:46,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,727 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:46,727 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:46,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,729 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) [2024-10-13 16:54:46,730 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 [2024-10-13 16:54:46,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:46,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:46,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-13 16:54:46,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,759 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) [2024-10-13 16:54:46,763 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 [2024-10-13 16:54:46,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:46,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:46,828 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:54:46,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-13 16:54:46,833 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:46,833 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:46,833 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:46,833 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:46,833 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:54:46,833 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,833 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:46,833 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:46,833 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2024-10-13 16:54:46,833 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:46,833 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:46,834 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,873 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:46,873 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:54:46,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,875 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) [2024-10-13 16:54:46,881 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 [2024-10-13 16:54:46,882 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 [2024-10-13 16:54:46,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:54:46,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:54:46,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:54:46,892 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-13 16:54:46,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:54:46,894 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-13 16:54:46,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:54:46,896 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:54:46,898 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:54:46,898 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:54:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,900 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) [2024-10-13 16:54:46,903 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 [2024-10-13 16:54:46,905 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:54:46,905 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:54:46,905 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:54:46,905 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-13 16:54:46,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:46,920 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:54:46,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:47,046 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-13 16:54:47,046 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:54:47,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 30 transitions. Complement of second has 10 states. [2024-10-13 16:54:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-13 16:54:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:54:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2024-10-13 16:54:47,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-13 16:54:47,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 10 letters. Loop has 6 letters. [2024-10-13 16:54:47,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 4 letters. Loop has 12 letters. [2024-10-13 16:54:47,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2024-10-13 16:54:47,090 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:54:47,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2024-10-13 16:54:47,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:54:47,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:54:47,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:54:47,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:54:47,090 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:47,091 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:47,091 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:47,091 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 16:54:47,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 16:54:47,091 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:54:47,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 16:54:47,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:54:47 BoogieIcfgContainer [2024-10-13 16:54:47,097 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:54:47,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:54:47,097 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:54:47,098 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:54:47,098 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45" (3/4) ... [2024-10-13 16:54:47,099 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 16:54:47,100 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:54:47,100 INFO L158 Benchmark]: Toolchain (without parser) took 1880.34ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 89.2MB in the beginning and 181.1MB in the end (delta: -91.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,101 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 111.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:54:47,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.62ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 78.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.84ms. Allocated memory is still 159.4MB. Free memory was 78.0MB in the beginning and 76.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,102 INFO L158 Benchmark]: Boogie Preprocessor took 25.93ms. Allocated memory is still 159.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,102 INFO L158 Benchmark]: RCFGBuilder took 225.45ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 75.1MB in the beginning and 225.7MB in the end (delta: -150.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,103 INFO L158 Benchmark]: BuchiAutomizer took 1446.47ms. Allocated memory is still 260.0MB. Free memory was 225.7MB in the beginning and 181.1MB in the end (delta: 44.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-10-13 16:54:47,103 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 260.0MB. Free memory is still 181.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:54:47,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 111.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.62ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 78.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.84ms. Allocated memory is still 159.4MB. Free memory was 78.0MB in the beginning and 76.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.93ms. Allocated memory is still 159.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 225.45ms. Allocated memory was 159.4MB in the beginning and 260.0MB in the end (delta: 100.7MB). Free memory was 75.1MB in the beginning and 225.7MB in the end (delta: -150.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1446.47ms. Allocated memory is still 260.0MB. Free memory was 225.7MB in the beginning and 181.1MB in the end (delta: 44.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 260.0MB. Free memory is still 181.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf122 smp94 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 16:54:47,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:47,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE