./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-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 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-02.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 a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:08:09,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:08:09,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-20 22:08:09,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:08:09,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:08:09,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:08:09,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:08:09,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:08:09,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:08:09,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:08:09,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:08:09,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:08:09,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:08:09,178 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:08:09,181 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:08:09,181 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:08:09,181 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:08:09,182 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:08:09,182 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:08:09,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:08:09,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:08:09,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:08:09,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:08:09,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:08:09,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:08:09,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:08:09,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:08:09,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:08:09,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:08:09,188 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:08:09,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:08:09,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:08:09,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:08:09,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:08:09,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:08:09,190 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:08:09,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2024-11-20 22:08:09,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:08:09,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:08:09,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:08:09,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:08:09,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:08:09,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-11-20 22:08:10,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:08:11,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:08:11,126 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-11-20 22:08:11,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd93edab/d74b04913e5c4f1e8c7760f8a5843fa4/FLAG34eee0b2e [2024-11-20 22:08:11,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd93edab/d74b04913e5c4f1e8c7760f8a5843fa4 [2024-11-20 22:08:11,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:08:11,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:08:11,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:08:11,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:08:11,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:08:11,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278570da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11, skipping insertion in model container [2024-11-20 22:08:11,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:08:11,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:08:11,329 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:08:11,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:08:11,353 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:08:11,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11 WrapperNode [2024-11-20 22:08:11,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:08:11,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:08:11,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:08:11,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:08:11,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,380 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-20 22:08:11,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:08:11,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:08:11,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:08:11,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:08:11,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,403 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:08:11,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:08:11,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:08:11,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:08:11,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:08:11,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:11,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:11,451 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) [2024-11-20 22:08:11,457 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 [2024-11-20 22:08:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:08:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:08:11,544 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:08:11,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:08:11,631 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-20 22:08:11,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:08:11,642 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:08:11,642 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 22:08:11,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11 BoogieIcfgContainer [2024-11-20 22:08:11,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:08:11,644 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:08:11,644 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:08:11,650 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:08:11,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:11,651 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:08:11" (1/3) ... [2024-11-20 22:08:11,653 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35bf781e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:08:11, skipping insertion in model container [2024-11-20 22:08:11,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:11,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (2/3) ... [2024-11-20 22:08:11,654 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35bf781e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:08:11, skipping insertion in model container [2024-11-20 22:08:11,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:11,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11" (3/3) ... [2024-11-20 22:08:11,657 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2024-11-20 22:08:11,740 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:08:11,741 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:08:11,741 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:08:11,741 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:08:11,741 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:08:11,742 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:08:11,742 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:08:11,742 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:08:11,747 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) [2024-11-20 22:08:11,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-20 22:08:11,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:11,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:11,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:08:11,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:08:11,767 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:08:11,768 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) [2024-11-20 22:08:11,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-20 22:08:11,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:11,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:11,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:08:11,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:08:11,778 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2024-11-20 22:08:11,778 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2024-11-20 22:08:11,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-20 22:08:11,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:11,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570781315] [2024-11-20 22:08:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:11,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:11,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-11-20 22:08:11,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:11,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403868568] [2024-11-20 22:08:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:11,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:11,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:11,932 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-11-20 22:08:11,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:11,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776512003] [2024-11-20 22:08:11,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:11,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:11,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,034 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:12,035 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:12,035 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:12,035 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:12,035 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:12,035 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,036 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:12,036 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:12,036 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-20 22:08:12,036 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:12,036 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:12,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,153 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:12,154 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:12,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,159 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) [2024-11-20 22:08:12,161 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 [2024-11-20 22:08:12,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:12,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,185 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:12,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:12,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:12,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,199 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) [2024-11-20 22:08:12,200 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 [2024-11-20 22:08:12,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:12,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,214 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:12,214 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:12,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:12,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,222 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) [2024-11-20 22:08:12,223 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 [2024-11-20 22:08:12,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:12,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,242 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 [2024-11-20 22:08:12,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,244 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) [2024-11-20 22:08:12,245 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 [2024-11-20 22:08:12,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:12,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,276 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:12,276 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=3}, {ULTIMATE.start_main_~a~0#1=-2}, {ULTIMATE.start_main_~a~0#1=-2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2024-11-20 22:08:12,284 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 [2024-11-20 22:08:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,288 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) [2024-11-20 22:08:12,290 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 [2024-11-20 22:08:12,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:12,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,318 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 [2024-11-20 22:08:12,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,321 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) [2024-11-20 22:08:12,324 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 [2024-11-20 22:08:12,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:12,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,355 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:12,360 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 [2024-11-20 22:08:12,360 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:12,361 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:12,361 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:12,361 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:12,361 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:12,361 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,361 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:12,361 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:12,361 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-20 22:08:12,361 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:12,361 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:12,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,441 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:12,446 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:12,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,448 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) [2024-11-20 22:08:12,449 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 [2024-11-20 22:08:12,451 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 [2024-11-20 22:08:12,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:12,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:12,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:12,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:12,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:12,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:12,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:12,469 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:12,476 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 [2024-11-20 22:08:12,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,480 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) [2024-11-20 22:08:12,481 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 [2024-11-20 22:08:12,482 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 [2024-11-20 22:08:12,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:12,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:12,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:12,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:12,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:12,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:12,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:12,497 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:12,504 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 [2024-11-20 22:08:12,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,507 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) [2024-11-20 22:08:12,509 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 [2024-11-20 22:08:12,510 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 [2024-11-20 22:08:12,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:12,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:12,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:12,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:12,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:12,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:12,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:12,524 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:12,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-20 22:08:12,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,532 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) [2024-11-20 22:08:12,533 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 [2024-11-20 22:08:12,534 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 [2024-11-20 22:08:12,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:12,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:12,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:12,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:12,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:12,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:12,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:12,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:12,555 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:08:12,555 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:08:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,582 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) [2024-11-20 22:08:12,584 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 [2024-11-20 22:08:12,584 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:12,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:12,585 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:12,585 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 [] [2024-11-20 22:08:12,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:12,596 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:12,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:12,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:12,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:12,650 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:12,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:12,697 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 [2024-11-20 22:08:12,699 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) [2024-11-20 22:08:12,743 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 27 states and 38 transitions. Complement of second has 6 states. [2024-11-20 22:08:12,746 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 [2024-11-20 22:08:12,751 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) [2024-11-20 22:08:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-20 22:08:12,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-20 22:08:12,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:12,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-20 22:08:12,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:12,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-20 22:08:12,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:12,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 38 transitions. [2024-11-20 22:08:12,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-20 22:08:12,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 15 states and 22 transitions. [2024-11-20 22:08:12,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-20 22:08:12,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-20 22:08:12,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2024-11-20 22:08:12,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:12,761 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2024-11-20 22:08:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2024-11-20 22:08:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-11-20 22:08:12,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2024-11-20 22:08:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-20 22:08:12,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-20 22:08:12,787 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-20 22:08:12,787 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:08:12,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-20 22:08:12,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-20 22:08:12,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:12,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:12,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-20 22:08:12,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-20 22:08:12,789 INFO L745 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~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;main_~a~0#1 := 16; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 77#L18 assume main_~x~0#1 > 0; 78#L19 [2024-11-20 22:08:12,789 INFO L747 eck$LassoCheckResult]: Loop: 78#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 75#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 81#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 82#L18 assume main_~x~0#1 > 0; 78#L19 [2024-11-20 22:08:12,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-20 22:08:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403004071] [2024-11-20 22:08:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1456270, now seen corresponding path program 1 times [2024-11-20 22:08:12,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354600406] [2024-11-20 22:08:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:12,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354600406] [2024-11-20 22:08:12,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354600406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:08:12,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:08:12,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:08:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748549379] [2024-11-20 22:08:12,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:08:12,875 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:08:12,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:12,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:08:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:08:12,881 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 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) [2024-11-20 22:08:12,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:12,913 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-11-20 22:08:12,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2024-11-20 22:08:12,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:12,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2024-11-20 22:08:12,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-20 22:08:12,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-20 22:08:12,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2024-11-20 22:08:12,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:12,916 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-20 22:08:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2024-11-20 22:08:12,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-20 22:08:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 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) [2024-11-20 22:08:12,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-11-20 22:08:12,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-20 22:08:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:08:12,921 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-20 22:08:12,921 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:08:12,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-11-20 22:08:12,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:12,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:12,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:12,923 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-20 22:08:12,924 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:12,924 INFO L745 eck$LassoCheckResult]: Stem: 117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~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;main_~a~0#1 := 16; 121#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 116#L18 assume main_~x~0#1 > 0; 119#L19 [2024-11-20 22:08:12,925 INFO L747 eck$LassoCheckResult]: Loop: 119#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 108#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 109#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 112#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 115#L18 assume main_~x~0#1 > 0; 119#L19 [2024-11-20 22:08:12,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2024-11-20 22:08:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786024937] [2024-11-20 22:08:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash 46857754, now seen corresponding path program 1 times [2024-11-20 22:08:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999893910] [2024-11-20 22:08:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,961 INFO L85 PathProgramCache]: Analyzing trace with hash 585782485, now seen corresponding path program 1 times [2024-11-20 22:08:12,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392933206] [2024-11-20 22:08:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,060 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,061 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,061 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,061 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,061 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:13,061 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,061 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,061 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,061 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-20 22:08:13,061 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,061 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,115 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:13,115 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,118 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) [2024-11-20 22:08:13,122 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 [2024-11-20 22:08:13,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:13,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:13,147 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 [2024-11-20 22:08:13,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,150 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) [2024-11-20 22:08:13,152 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 [2024-11-20 22:08:13,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:13,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:13,236 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:13,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-20 22:08:13,243 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,243 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,243 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,243 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,243 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:13,243 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,243 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,243 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,244 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-20 22:08:13,244 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,244 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,299 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:13,300 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:13,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,303 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) [2024-11-20 22:08:13,304 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 [2024-11-20 22:08:13,305 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 [2024-11-20 22:08:13,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:13,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:13,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:13,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:13,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:13,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:13,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:13,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:13,328 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-20 22:08:13,328 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:08:13,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,331 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) [2024-11-20 22:08:13,332 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 [2024-11-20 22:08:13,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:13,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:13,334 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:13,334 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-20 22:08:13,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-20 22:08:13,341 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:13,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:13,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,374 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 22:08:13,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,454 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-20 22:08:13,454 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) 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) [2024-11-20 22:08:13,540 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) 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) Result 34 states and 50 transitions. Complement of second has 10 states. [2024-11-20 22:08:13,542 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 [2024-11-20 22:08:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) 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) [2024-11-20 22:08:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-11-20 22:08:13,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-20 22:08:13,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-20 22:08:13,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-20 22:08:13,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2024-11-20 22:08:13,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-20 22:08:13,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 50 transitions. [2024-11-20 22:08:13,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-20 22:08:13,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-20 22:08:13,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 50 transitions. [2024-11-20 22:08:13,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:13,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 50 transitions. [2024-11-20 22:08:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 50 transitions. [2024-11-20 22:08:13,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-20 22:08:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 28 states have internal predecessors, (44), 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) [2024-11-20 22:08:13,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2024-11-20 22:08:13,550 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-11-20 22:08:13,550 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-11-20 22:08:13,550 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-20 22:08:13,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 44 transitions. [2024-11-20 22:08:13,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:13,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:13,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:13,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:13,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-20 22:08:13,552 INFO L745 eck$LassoCheckResult]: Stem: 227#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 231#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 235#L18 assume main_~x~0#1 > 0; 234#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-11-20 22:08:13,552 INFO L747 eck$LassoCheckResult]: Loop: 215#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 224#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 220#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 221#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 239#L18 assume main_~x~0#1 > 0; 229#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-11-20 22:08:13,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-11-20 22:08:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694704603] [2024-11-20 22:08:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:13,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694704603] [2024-11-20 22:08:13,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694704603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:08:13,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:08:13,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:08:13,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932916635] [2024-11-20 22:08:13,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:08:13,588 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-20 22:08:13,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 1 times [2024-11-20 22:08:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829162957] [2024-11-20 22:08:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:13,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829162957] [2024-11-20 22:08:13,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829162957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:08:13,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67672972] [2024-11-20 22:08:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:08:13,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,638 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:08:13,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 22:08:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:13,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:08:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67672972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:08:13,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:08:13,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-20 22:08:13,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483050370] [2024-11-20 22:08:13,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:08:13,705 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:08:13,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:13,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:08:13,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:08:13,706 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:13,733 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2024-11-20 22:08:13,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2024-11-20 22:08:13,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:13,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2024-11-20 22:08:13,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-20 22:08:13,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-20 22:08:13,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2024-11-20 22:08:13,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:13,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2024-11-20 22:08:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2024-11-20 22:08:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-11-20 22:08:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 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) [2024-11-20 22:08:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 47 transitions. [2024-11-20 22:08:13,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-11-20 22:08:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:08:13,739 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-11-20 22:08:13,739 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-20 22:08:13,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 47 transitions. [2024-11-20 22:08:13,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:13,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:13,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:13,740 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:13,740 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-20 22:08:13,740 INFO L745 eck$LassoCheckResult]: Stem: 333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 334#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~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;main_~a~0#1 := 16; 328#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 324#L18 assume main_~x~0#1 > 0; 325#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-11-20 22:08:13,740 INFO L747 eck$LassoCheckResult]: Loop: 318#L19-2 assume !(main_~x~0#1 == main_~a~0#1); 320#L19-4 havoc main_#t~bitwise2#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise2#1 >= -2147483648; 338#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 341#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 340#L18 assume main_~x~0#1 > 0; 335#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-11-20 22:08:13,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2024-11-20 22:08:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890874734] [2024-11-20 22:08:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,745 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1598506711, now seen corresponding path program 1 times [2024-11-20 22:08:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721131864] [2024-11-20 22:08:13,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,758 INFO L85 PathProgramCache]: Analyzing trace with hash 352137795, now seen corresponding path program 1 times [2024-11-20 22:08:13,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756549208] [2024-11-20 22:08:13,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,946 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,947 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,947 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,947 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,947 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:13,947 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,947 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,947 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,947 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2024-11-20 22:08:13,947 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,947 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,036 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:14,086 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 [2024-11-20 22:08:14,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-20 22:08:14,363 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:14,363 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,366 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) [2024-11-20 22:08:14,367 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 [2024-11-20 22:08:14,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-20 22:08:14,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,392 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) [2024-11-20 22:08:14,394 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 [2024-11-20 22:08:14,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:14,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,487 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,487 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [15, 1, 15] Nus: [0, 0] [2024-11-20 22:08:14,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:14,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,496 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) [2024-11-20 22:08:14,497 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 [2024-11-20 22:08:14,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,511 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,511 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,517 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 [2024-11-20 22:08:14,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,518 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) [2024-11-20 22:08:14,519 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 [2024-11-20 22:08:14,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,531 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,531 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,538 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 [2024-11-20 22:08:14,563 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:14,563 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:14,563 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:14,563 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:14,564 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:14,564 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,564 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:14,564 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:14,564 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-20 22:08:14,564 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:14,564 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:14,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,679 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:14,875 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:14,876 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:14,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,878 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) [2024-11-20 22:08:14,880 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 [2024-11-20 22:08:14,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,892 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,892 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,898 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 [2024-11-20 22:08:14,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,901 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) [2024-11-20 22:08:14,902 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 [2024-11-20 22:08:14,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,913 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,913 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-20 22:08:14,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,920 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) [2024-11-20 22:08:14,921 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 [2024-11-20 22:08:14,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,933 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,933 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:14,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,941 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) [2024-11-20 22:08:14,944 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 [2024-11-20 22:08:14,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,963 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 [2024-11-20 22:08:14,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,965 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) [2024-11-20 22:08:14,966 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 [2024-11-20 22:08:14,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:14,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:15,112 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:15,119 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 [2024-11-20 22:08:15,119 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:15,119 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:15,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:15,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:15,120 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:15,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:15,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:15,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-20 22:08:15,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:15,120 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:15,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,221 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:15,419 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:15,419 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:15,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,422 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) [2024-11-20 22:08:15,422 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 [2024-11-20 22:08:15,427 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 [2024-11-20 22:08:15,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:15,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:15,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:15,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:15,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:15,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:15,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:15,444 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:15,452 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 [2024-11-20 22:08:15,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,455 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) [2024-11-20 22:08:15,458 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 [2024-11-20 22:08:15,459 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 [2024-11-20 22:08:15,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:15,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:15,472 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-20 22:08:15,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:15,510 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-20 22:08:15,510 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-20 22:08:15,584 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:15,657 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-11-20 22:08:15,657 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-11-20 22:08:15,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,659 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) [2024-11-20 22:08:15,660 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 [2024-11-20 22:08:15,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:15,677 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-20 22:08:15,677 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:15,677 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-11-20 22:08:15,687 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 [2024-11-20 22:08:15,690 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-20 22:08:15,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:15,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:15,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:15,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 22:08:15,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:15,864 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-20 22:08:15,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:15,938 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 106 transitions. Complement of second has 12 states. [2024-11-20 22:08:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-20 22:08:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2024-11-20 22:08:15,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-20 22:08:15,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:15,939 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:08:15,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:15,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:15,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 22:08:16,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:16,103 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 [2024-11-20 22:08:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,125 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-20 22:08:16,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,295 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 97 states and 136 transitions. Complement of second has 20 states. [2024-11-20 22:08:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2024-11-20 22:08:16,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2024-11-20 22:08:16,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-20 22:08:16,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-20 22:08:16,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-20 22:08:16,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 136 transitions. [2024-11-20 22:08:16,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-20 22:08:16,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 88 states and 123 transitions. [2024-11-20 22:08:16,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-11-20 22:08:16,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-20 22:08:16,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 123 transitions. [2024-11-20 22:08:16,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:16,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-20 22:08:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 123 transitions. [2024-11-20 22:08:16,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2024-11-20 22:08:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 61 states have internal predecessors, (90), 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) [2024-11-20 22:08:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-11-20 22:08:16,315 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-20 22:08:16,315 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-20 22:08:16,315 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-20 22:08:16,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 90 transitions. [2024-11-20 22:08:16,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-20 22:08:16,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:16,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:16,317 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-20 22:08:16,317 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-20 22:08:16,317 INFO L745 eck$LassoCheckResult]: Stem: 689#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 690#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 693#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 716#L18 assume main_~x~0#1 > 0; 714#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 713#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 677#L19-5 [2024-11-20 22:08:16,317 INFO L747 eck$LassoCheckResult]: Loop: 677#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 686#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 682#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 683#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 732#L18 assume main_~x~0#1 > 0; 697#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 677#L19-5 [2024-11-20 22:08:16,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,317 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2024-11-20 22:08:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826829147] [2024-11-20 22:08:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:16,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 2 times [2024-11-20 22:08:16,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401770623] [2024-11-20 22:08:16,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401770623] [2024-11-20 22:08:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401770623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:08:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693330329] [2024-11-20 22:08:16,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:08:16,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:08:16,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,372 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-20 22:08:16,406 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 22:08:16,406 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:08:16,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:16,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:08:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693330329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:08:16,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:08:16,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-20 22:08:16,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37078288] [2024-11-20 22:08:16,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:08:16,427 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:08:16,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:16,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:08:16,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:08:16,427 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:16,454 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-11-20 22:08:16,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2024-11-20 22:08:16,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:08:16,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 45 transitions. [2024-11-20 22:08:16,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-20 22:08:16,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-20 22:08:16,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-11-20 22:08:16,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:16,456 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-20 22:08:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-11-20 22:08:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-11-20 22:08:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 32 states have internal predecessors, (42), 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) [2024-11-20 22:08:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-11-20 22:08:16,460 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-20 22:08:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:08:16,460 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-20 22:08:16,461 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-20 22:08:16,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 42 transitions. [2024-11-20 22:08:16,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:08:16,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:16,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:16,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:08:16,462 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:08:16,462 INFO L745 eck$LassoCheckResult]: Stem: 841#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 842#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 843#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 852#L18 assume main_~x~0#1 > 0; 847#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 827#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 828#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 836#L18-2 [2024-11-20 22:08:16,462 INFO L747 eck$LassoCheckResult]: Loop: 836#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 835#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 836#L18-2 [2024-11-20 22:08:16,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663410, now seen corresponding path program 2 times [2024-11-20 22:08:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536903785] [2024-11-20 22:08:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:16,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 2 times [2024-11-20 22:08:16,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588125657] [2024-11-20 22:08:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:16,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 585782500, now seen corresponding path program 1 times [2024-11-20 22:08:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480876963] [2024-11-20 22:08:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480876963] [2024-11-20 22:08:16,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480876963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:08:16,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:08:16,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:08:16,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601572246] [2024-11-20 22:08:16,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:08:16,553 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:16,553 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:16,553 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:16,553 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:16,553 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:16,553 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,553 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:16,553 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:16,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-20 22:08:16,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:16,553 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:16,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,602 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:16,602 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:16,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,604 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) [2024-11-20 22:08:16,605 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 [2024-11-20 22:08:16,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,618 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,618 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,625 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 [2024-11-20 22:08:16,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,626 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) [2024-11-20 22:08:16,627 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 [2024-11-20 22:08:16,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,641 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,641 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,649 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 [2024-11-20 22:08:16,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,651 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) [2024-11-20 22:08:16,651 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 [2024-11-20 22:08:16,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,668 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 [2024-11-20 22:08:16,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,669 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-20 22:08:16,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:16,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,695 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:16,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-20 22:08:16,700 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:16,700 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:16,700 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:16,700 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:16,700 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:16,700 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,700 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:16,700 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:16,700 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-20 22:08:16,700 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:16,700 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:16,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,744 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:16,744 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:16,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,745 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-20 22:08:16,747 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 [2024-11-20 22:08:16,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:16,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:16,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:16,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:16,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:16,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:16,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:16,763 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:16,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-20 22:08:16,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,773 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-20 22:08:16,775 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 [2024-11-20 22:08:16,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:16,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:16,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:16,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:16,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:16,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:16,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:16,791 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:08:16,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:16,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,800 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-20 22:08:16,804 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 [2024-11-20 22:08:16,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:16,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:16,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:16,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:16,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:16,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:16,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:16,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:16,823 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:08:16,823 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:08:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,826 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-20 22:08:16,827 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:16,828 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:16,828 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:16,828 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 [] [2024-11-20 22:08:16,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:16,836 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:16,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:16,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,862 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:16,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,865 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 [2024-11-20 22:08:16,865 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,883 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 85 states and 109 transitions. Complement of second has 5 states. [2024-11-20 22:08:16,883 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 [2024-11-20 22:08:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-11-20 22:08:16,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-20 22:08:16,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-20 22:08:16,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-20 22:08:16,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:16,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 109 transitions. [2024-11-20 22:08:16,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:08:16,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 63 states and 82 transitions. [2024-11-20 22:08:16,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-20 22:08:16,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-20 22:08:16,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 82 transitions. [2024-11-20 22:08:16,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:16,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-11-20 22:08:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 82 transitions. [2024-11-20 22:08:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 35. [2024-11-20 22:08:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-20 22:08:16,889 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-20 22:08:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:16,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:08:16,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:08:16,890 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2024-11-20 22:08:16,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:16,907 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-11-20 22:08:16,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2024-11-20 22:08:16,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:08:16,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 46 transitions. [2024-11-20 22:08:16,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-20 22:08:16,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-20 22:08:16,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-11-20 22:08:16,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:16,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-11-20 22:08:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-11-20 22:08:16,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2024-11-20 22:08:16,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 34 states have internal predecessors, (43), 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) [2024-11-20 22:08:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-11-20 22:08:16,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-20 22:08:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:08:16,912 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-20 22:08:16,912 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-20 22:08:16,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 43 transitions. [2024-11-20 22:08:16,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:08:16,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:16,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:16,913 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 22:08:16,913 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:08:16,913 INFO L745 eck$LassoCheckResult]: Stem: 1085#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1086#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~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;main_~a~0#1 := 16; 1087#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1095#L18 assume main_~x~0#1 > 0; 1093#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1072#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1073#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1080#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1081#L18 assume main_~x~0#1 > 0; 1088#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 1089#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1077#L18-2 [2024-11-20 22:08:16,913 INFO L747 eck$LassoCheckResult]: Loop: 1077#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1076#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1077#L18-2 [2024-11-20 22:08:16,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash 296252863, now seen corresponding path program 1 times [2024-11-20 22:08:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903904285] [2024-11-20 22:08:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903904285] [2024-11-20 22:08:16,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903904285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:08:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960601962] [2024-11-20 22:08:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:08:16,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,968 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:08:16,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-20 22:08:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:08:16,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:17,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:08:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:17,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960601962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:08:17,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:08:17,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-20 22:08:17,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405881209] [2024-11-20 22:08:17,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:08:17,054 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-20 22:08:17,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:17,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 3 times [2024-11-20 22:08:17,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:17,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451010587] [2024-11-20 22:08:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:17,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:17,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:17,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:17,083 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:17,084 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:17,084 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:17,084 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:17,084 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:17,084 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,084 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:17,084 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:17,084 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-20 22:08:17,084 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:17,084 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:17,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,137 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:17,137 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:17,140 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:17,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-20 22:08:17,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:17,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:17,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:17,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:17,169 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:17,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-20 22:08:17,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:17,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:17,198 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:17,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-20 22:08:17,203 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:17,204 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:17,204 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:17,204 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:17,204 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:17,204 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,204 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:17,204 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:17,204 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-20 22:08:17,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:17,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:17,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:17,243 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:17,243 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:17,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:17,246 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:17,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-20 22:08:17,248 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 [2024-11-20 22:08:17,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:17,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:17,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:17,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:17,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:17,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:17,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:17,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:17,264 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:08:17,264 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:08:17,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:17,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:17,266 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:17,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-20 22:08:17,268 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:17,268 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:17,268 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:17,268 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 [] [2024-11-20 22:08:17,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:17,274 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:17,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,302 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:17,303 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 [2024-11-20 22:08:17,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-11-20 22:08:17,323 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 [2024-11-20 22:08:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-20 22:08:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-20 22:08:17,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:17,324 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:08:17,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,357 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:17,362 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:08:17,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-11-20 22:08:17,373 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 [2024-11-20 22:08:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-20 22:08:17,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-20 22:08:17,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:17,374 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:08:17,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:17,408 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:17,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:17,409 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:08:17,410 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,425 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 70 transitions. Complement of second has 4 states. [2024-11-20 22:08:17,425 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 [2024-11-20 22:08:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:08:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2024-11-20 22:08:17,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-20 22:08:17,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:17,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-20 22:08:17,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:17,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-20 22:08:17,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:17,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 70 transitions. [2024-11-20 22:08:17,429 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:08:17,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-11-20 22:08:17,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:08:17,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:08:17,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:08:17,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:08:17,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:17,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 22:08:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:08:17,430 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 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) [2024-11-20 22:08:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:17,430 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-20 22:08:17,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-20 22:08:17,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:08:17,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 22:08:17,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:08:17,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:08:17,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:08:17,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:08:17,431 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:17,431 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 22:08:17,431 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:17,431 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-20 22:08:17,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-20 22:08:17,431 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:08:17,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-20 22:08:17,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:08:17 BoogieIcfgContainer [2024-11-20 22:08:17,440 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:08:17,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:08:17,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:08:17,440 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:08:17,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11" (3/4) ... [2024-11-20 22:08:17,443 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 22:08:17,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:08:17,444 INFO L158 Benchmark]: Toolchain (without parser) took 6297.25ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 96.0MB in the beginning and 74.0MB in the end (delta: 22.0MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. [2024-11-20 22:08:17,445 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 151.0MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:08:17,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.48ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 84.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:08:17,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.27ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:08:17,445 INFO L158 Benchmark]: Boogie Preprocessor took 34.55ms. Allocated memory is still 151.0MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:08:17,446 INFO L158 Benchmark]: RCFGBuilder took 226.51ms. Allocated memory is still 151.0MB. Free memory was 81.8MB in the beginning and 72.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 22:08:17,446 INFO L158 Benchmark]: BuchiAutomizer took 5795.55ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 72.1MB in the beginning and 74.0MB in the end (delta: -1.9MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-20 22:08:17,446 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 209.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:08:17,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 151.0MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.48ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 84.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.27ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.55ms. Allocated memory is still 151.0MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 226.51ms. Allocated memory is still 151.0MB. Free memory was 81.8MB in the beginning and 72.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5795.55ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 72.1MB in the beginning and 74.0MB in the end (delta: -1.9MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 209.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 12 locations. One deterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. One nondeterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 4.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 73 StatesRemovedByMinimization, 7 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, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 84 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf95 smp81 dnf442 smp75 tf108 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 224ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-20 22:08:17,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-20 22:08:17,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:17,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-20 22:08:18,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:18,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:18,465 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