./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-01.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/and-01.i -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 e0082974c4a0ccb2e3b0423062099713be2e4fbaae442bc0ff779d0ca2c39bca --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:17:42,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:17:43,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-09 15:17:43,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:17:43,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:17:43,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:17:43,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:17:43,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:17:43,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:17:43,033 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:17:43,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:17:43,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:17:43,034 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:17:43,035 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:17:43,035 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:17:43,036 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:17:43,036 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:17:43,041 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:17:43,042 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:17:43,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:17:43,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:17:43,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:17:43,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:17:43,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:17:43,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:17:43,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:17:43,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:17:43,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:17:43,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:17:43,047 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:17:43,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:17:43,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:17:43,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:17:43,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:17:43,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:17:43,049 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:17:43,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0082974c4a0ccb2e3b0423062099713be2e4fbaae442bc0ff779d0ca2c39bca [2024-11-09 15:17:43,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:17:43,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:17:43,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:17:43,327 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:17:43,328 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:17:43,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-01.i [2024-11-09 15:17:44,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:17:44,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:17:44,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01.i [2024-11-09 15:17:44,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec51758ee/36bd9fa79c8640ca8730c5043104b4e2/FLAGe646e8d1e [2024-11-09 15:17:44,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec51758ee/36bd9fa79c8640ca8730c5043104b4e2 [2024-11-09 15:17:44,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:17:44,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:17:44,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:17:44,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:17:44,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:17:44,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:17:44" (1/1) ... [2024-11-09 15:17:44,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b9a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:44, skipping insertion in model container [2024-11-09 15:17:44,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:17:44" (1/1) ... [2024-11-09 15:17:45,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:17:45,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:17:45,294 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:17:45,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:17:45,362 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:17:45,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45 WrapperNode [2024-11-09 15:17:45,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:17:45,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:17:45,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:17:45,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:17:45,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,397 INFO L138 Inliner]: procedures = 110, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-09 15:17:45,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:17:45,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:17:45,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:17:45,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:17:45,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,415 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 15:17:45,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:17:45,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:17:45,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:17:45,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:17:45,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (1/1) ... [2024-11-09 15:17:45,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:45,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:45,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 15:17:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:17:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:17:45,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:17:45,637 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:17:45,718 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-09 15:17:45,719 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:17:45,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:17:45,734 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:17:45,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:45 BoogieIcfgContainer [2024-11-09 15:17:45,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:17:45,738 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:17:45,741 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:17:45,745 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:17:45,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:45,746 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:17:44" (1/3) ... [2024-11-09 15:17:45,747 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336fc074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:17:45, skipping insertion in model container [2024-11-09 15:17:45,747 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:45,747 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:17:45" (2/3) ... [2024-11-09 15:17:45,748 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336fc074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:17:45, skipping insertion in model container [2024-11-09 15:17:45,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:17:45,748 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:45" (3/3) ... [2024-11-09 15:17:45,749 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-01.i [2024-11-09 15:17:45,902 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:17:45,902 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:17:45,903 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:17:45,903 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:17:45,903 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:17:45,903 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:17:45,904 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:17:45,904 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:17:45,907 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) [2024-11-09 15:17:45,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:45,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:45,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:45,928 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:17:45,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:17:45,929 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:17:45,929 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) [2024-11-09 15:17:45,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:45,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:45,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:45,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:17:45,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:17:45,940 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L535true assume !!(main_~a~0#1 > 0); 8#L536-1true [2024-11-09 15:17:45,941 INFO L747 eck$LassoCheckResult]: Loop: 8#L536-1true assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 12#L538true assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise6#1 := 0; 7#L538-5true main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 8#L536-1true [2024-11-09 15:17:45,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-09 15:17:45,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:45,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668058277] [2024-11-09 15:17:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:46,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 1 times [2024-11-09 15:17:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707711460] [2024-11-09 15:17:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:46,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:46,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,111 INFO L85 PathProgramCache]: Analyzing trace with hash 889575254, now seen corresponding path program 1 times [2024-11-09 15:17:46,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:46,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045318972] [2024-11-09 15:17:46,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:46,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:46,240 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:46,240 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:46,241 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:46,241 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:46,241 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:46,241 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,241 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:46,241 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:46,241 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration1_Loop [2024-11-09 15:17:46,242 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:46,242 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:46,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,383 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:46,384 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:46,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:46,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-09 15:17:46,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:46,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:46,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-09 15:17:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:46,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:46,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-09 15:17:46,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:46,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:46,469 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:17:46,474 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 [2024-11-09 15:17:46,475 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:46,475 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:46,475 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:46,475 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:46,475 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:17:46,475 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,475 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:46,475 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:46,475 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration1_Loop [2024-11-09 15:17:46,476 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:46,476 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:46,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:46,585 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:46,590 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:17:46,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:46,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:46,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-09 15:17:46,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:17:46,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:17:46,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:17:46,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:17:46,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:17:46,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:17:46,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:17:46,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:17:46,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:17:46,621 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:17:46,622 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 15:17:46,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:46,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:46,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:46,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-09 15:17:46,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:17:46,650 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:17:46,650 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:17:46,651 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 [] [2024-11-09 15:17:46,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:46,667 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:17:46,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:46,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:17:46,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:46,719 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:17:46,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:46,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-09 15:17:46,799 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 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) [2024-11-09 15:17:46,900 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 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) Result 45 states and 64 transitions. Complement of second has 10 states. [2024-11-09 15:17:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-09 15:17:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2024-11-09 15:17:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2024-11-09 15:17:46,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-09 15:17:46,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:46,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-09 15:17:46,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:46,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-09 15:17:46,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:46,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2024-11-09 15:17:46,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:46,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 22 states and 30 transitions. [2024-11-09 15:17:46,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-09 15:17:46,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-09 15:17:46,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2024-11-09 15:17:46,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:17:46,923 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2024-11-09 15:17:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2024-11-09 15:17:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2024-11-09 15:17:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-11-09 15:17:46,949 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-09 15:17:46,949 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-09 15:17:46,950 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 15:17:46,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-11-09 15:17:46,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:46,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:46,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:46,952 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-09 15:17:46,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-09 15:17:46,953 INFO L745 eck$LassoCheckResult]: Stem: 119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 111#L535 assume !!(main_~a~0#1 > 0); 112#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 116#L538 [2024-11-09 15:17:46,953 INFO L747 eck$LassoCheckResult]: Loop: 116#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 121#L538-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise6#1 := main_~x~0#1; 108#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 113#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 116#L538 [2024-11-09 15:17:46,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2024-11-09 15:17:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:46,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147451826] [2024-11-09 15:17:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:46,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:46,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1573111, now seen corresponding path program 1 times [2024-11-09 15:17:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036600406] [2024-11-09 15:17:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:46,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:46,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 183382882, now seen corresponding path program 1 times [2024-11-09 15:17:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855294855] [2024-11-09 15:17:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:47,064 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:47,064 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:47,065 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:47,065 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:47,065 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:47,065 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,065 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:47,065 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:47,065 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration2_Loop [2024-11-09 15:17:47,065 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:47,065 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:47,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,079 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,156 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:47,157 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:47,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:47,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:47,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-09 15:17:47,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:47,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:47,190 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 [2024-11-09 15:17:47,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:47,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:47,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-09 15:17:47,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:47,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:47,285 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:17:47,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:47,291 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:47,291 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:47,291 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:47,291 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:47,291 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:17:47,291 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,291 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:47,291 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:47,291 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration2_Loop [2024-11-09 15:17:47,291 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:47,291 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:47,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,392 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:47,392 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:17:47,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:47,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:47,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-09 15:17:47,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:17:47,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:17:47,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:17:47,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:17:47,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:17:47,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:17:47,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:17:47,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:17:47,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:17:47,425 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-09 15:17:47,425 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:17:47,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:47,427 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:47,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-09 15:17:47,429 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:17:47,429 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:17:47,429 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:17:47,429 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 [] [2024-11-09 15:17:47,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:47,441 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:17:47,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:47,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:17:47,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:47,472 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:17:47,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:47,510 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-09 15:17:47,510 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:47,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 54 transitions. Complement of second has 8 states. [2024-11-09 15:17:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-09 15:17:47,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-09 15:17:47,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-09 15:17:47,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:47,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-09 15:17:47,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:47,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2024-11-09 15:17:47,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:47,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions. [2024-11-09 15:17:47,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:47,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 49 transitions. [2024-11-09 15:17:47,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-09 15:17:47,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-09 15:17:47,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2024-11-09 15:17:47,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:17:47,561 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-09 15:17:47,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2024-11-09 15:17:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-09 15:17:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 35 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:47,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-09 15:17:47,564 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-09 15:17:47,564 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-09 15:17:47,565 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 15:17:47,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 48 transitions. [2024-11-09 15:17:47,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:47,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:47,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:47,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-09 15:17:47,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-09 15:17:47,566 INFO L745 eck$LassoCheckResult]: Stem: 226#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 227#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 214#L535 assume !!(main_~a~0#1 > 0); 215#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 242#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 228#L538-2 [2024-11-09 15:17:47,566 INFO L747 eck$LassoCheckResult]: Loop: 228#L538-2 assume !(main_~x~0#1 == main_~a~0#1); 216#L538-4 havoc main_#t~bitwise6#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise6#1 >= -2147483648; 217#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 220#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 223#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 228#L538-2 [2024-11-09 15:17:47,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash 28695977, now seen corresponding path program 1 times [2024-11-09 15:17:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:47,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118280207] [2024-11-09 15:17:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:47,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:47,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash 53473440, now seen corresponding path program 1 times [2024-11-09 15:17:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:47,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093954101] [2024-11-09 15:17:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:47,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:47,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:47,595 INFO L85 PathProgramCache]: Analyzing trace with hash 139090936, now seen corresponding path program 1 times [2024-11-09 15:17:47,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:47,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696127406] [2024-11-09 15:17:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:47,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:47,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:47,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-09 15:17:47,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-09 15:17:47,836 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:47,837 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:47,837 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:47,837 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:47,837 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:47,837 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:47,837 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:47,837 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:47,837 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Loop [2024-11-09 15:17:47,837 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:47,837 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:47,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:47,967 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-09 15:17:48,215 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:48,215 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:48,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-09 15:17:48,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,232 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,232 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,243 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 [2024-11-09 15:17:48,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-09 15:17:48,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,270 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,270 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_5=1} Honda state: {v_rep~unnamed0~0~P_PID_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,280 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 [2024-11-09 15:17:48,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-09 15:17:48,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-09 15:17:48,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,312 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-09 15:17:48,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:48,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,409 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,410 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Generalized eigenvectors: [{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}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-09 15:17:48,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-09 15:17:48,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,422 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-09 15:17:48,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,442 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,443 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_5=2} Honda state: {v_rep~unnamed0~0~P_PGID_5=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,452 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 [2024-11-09 15:17:48,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,454 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-09 15:17:48,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,473 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,474 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_5=0} Honda state: {v_rep~unnamed0~0~P_ALL_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,484 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 [2024-11-09 15:17:48,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,485 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-09 15:17:48,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,498 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,498 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise6#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:48,535 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:48,535 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:48,535 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:48,535 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:48,535 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:48,535 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,535 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:48,535 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:48,535 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Lasso [2024-11-09 15:17:48,535 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:48,535 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:48,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:48,676 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-09 15:17:48,900 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:48,900 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:48,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,902 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-09 15:17:48,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,920 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:48,920 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:48,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:48,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,933 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-09 15:17:48,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:48,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:48,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:48,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:48,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:48,958 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:48,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-09 15:17:48,960 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:48,960 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:49,088 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:17:49,093 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 [2024-11-09 15:17:49,093 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:49,093 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:49,093 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:49,093 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:49,093 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:17:49,093 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:49,093 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:49,094 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:49,094 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Lasso [2024-11-09 15:17:49,094 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:49,094 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:49,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:49,216 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-09 15:17:49,388 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:49,388 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:17:49,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:49,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:49,390 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:49,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-09 15:17:49,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:17:49,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:17:49,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:17:49,403 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-09 15:17:49,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:17:49,443 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-09 15:17:49,443 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-09 15:17:49,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:17:49,605 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2024-11-09 15:17:49,605 INFO L444 ModelExtractionUtils]: 13 out of 28 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-09 15:17:49,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:49,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:49,607 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:49,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-09 15:17:49,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:17:49,624 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-09 15:17:49,624 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:17:49,624 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] [2024-11-09 15:17:49,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:49,642 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-09 15:17:49,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:49,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:17:49,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:49,707 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:17:49,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:17:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:49,773 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 4 loop predicates [2024-11-09 15:17:49,773 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 48 transitions. cyclomatic complexity: 16 Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:49,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 48 transitions. cyclomatic complexity: 16. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 126 states and 181 transitions. Complement of second has 12 states. [2024-11-09 15:17:49,856 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 [2024-11-09 15:17:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2024-11-09 15:17:49,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 5 letters. [2024-11-09 15:17:49,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:49,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-09 15:17:49,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:49,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 10 letters. [2024-11-09 15:17:49,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:17:49,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 181 transitions. [2024-11-09 15:17:49,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:49,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 53 states and 72 transitions. [2024-11-09 15:17:49,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-09 15:17:49,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-09 15:17:49,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 72 transitions. [2024-11-09 15:17:49,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:17:49,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-11-09 15:17:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 72 transitions. [2024-11-09 15:17:49,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2024-11-09 15:17:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 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) [2024-11-09 15:17:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2024-11-09 15:17:49,865 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-11-09 15:17:49,866 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-11-09 15:17:49,866 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 15:17:49,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2024-11-09 15:17:49,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-09 15:17:49,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:17:49,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:17:49,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-11-09 15:17:49,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-09 15:17:49,867 INFO L745 eck$LassoCheckResult]: Stem: 462#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 463#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 455#L535 assume !!(main_~a~0#1 > 0); 456#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 460#L538 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise6#1 := 0; 482#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 479#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 471#L538 [2024-11-09 15:17:49,867 INFO L747 eck$LassoCheckResult]: Loop: 471#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 464#L538-2 assume !(main_~x~0#1 == main_~a~0#1); 451#L538-4 havoc main_#t~bitwise6#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise6#1 >= -2147483648; 452#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 457#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 471#L538 [2024-11-09 15:17:49,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:49,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1807029114, now seen corresponding path program 2 times [2024-11-09 15:17:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575903546] [2024-11-09 15:17:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:49,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:17:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:17:49,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:17:49,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575903546] [2024-11-09 15:17:49,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575903546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:17:49,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:17:49,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:17:49,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214125255] [2024-11-09 15:17:49,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:17:49,944 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 15:17:49,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:17:49,944 INFO L85 PathProgramCache]: Analyzing trace with hash 48824520, now seen corresponding path program 2 times [2024-11-09 15:17:49,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:17:49,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636224566] [2024-11-09 15:17:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:17:49,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:17:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:49,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:17:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:17:49,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:17:49,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-09 15:17:50,119 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:17:50,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:17:50,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:17:50,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:17:50,120 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:17:50,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:17:50,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:17:50,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration4_Loop [2024-11-09 15:17:50,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:17:50,120 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:17:50,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:17:50,206 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 15:17:50,308 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:17:50,308 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:17:50,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,310 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-09 15:17:50,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,329 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,330 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_8=0} Honda state: {v_rep~unnamed0~0~P_ALL_8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:50,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-09 15:17:50,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,341 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-09 15:17:50,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,353 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,353 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise6#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:50,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:50,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,364 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-09 15:17:50,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,389 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 [2024-11-09 15:17:50,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,390 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-09 15:17:50,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:17:50,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,553 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,553 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-2} 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: [2, 1, 0] Nus: [0, 1] [2024-11-09 15:17:50,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:50,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,570 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-09 15:17:50,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,595 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,595 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_8=1} Honda state: {v_rep~unnamed0~0~P_PID_8=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:50,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:50,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,611 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-09 15:17:50,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,636 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,636 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_8=2} Honda state: {v_rep~unnamed0~0~P_PGID_8=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:50,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-09 15:17:50,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:17:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:17:50,652 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:17:50,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-09 15:17:50,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:17:50,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:17:50,667 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:17:50,668 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:17:50,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-09 15:17:50,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:17:50,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:17:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:17:50,686 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:17:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:17:50,699 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2024-11-09 15:17:50,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 8 transitions. [2024-11-09 15:17:50,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:17:50,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2024-11-09 15:17:50,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-09 15:17:50,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-09 15:17:50,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-09 15:17:50,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:17:50,700 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:50,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:17:50,703 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:17:50,703 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 15:17:50,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-09 15:17:50,703 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:17:50,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-09 15:17:50,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:17:50 BoogieIcfgContainer [2024-11-09 15:17:50,714 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:17:50,715 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:17:50,715 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:17:50,715 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:17:50,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:17:45" (3/4) ... [2024-11-09 15:17:50,719 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 15:17:50,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:17:50,721 INFO L158 Benchmark]: Toolchain (without parser) took 5739.11ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 113.3MB in the beginning and 177.2MB in the end (delta: -63.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-09 15:17:50,722 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:50,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.07ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 94.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 15:17:50,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.15ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:17:50,722 INFO L158 Benchmark]: Boogie Preprocessor took 34.48ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 90.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:50,723 INFO L158 Benchmark]: RCFGBuilder took 301.27ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 81.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 15:17:50,723 INFO L158 Benchmark]: BuchiAutomizer took 4976.26ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 80.7MB in the beginning and 178.3MB in the end (delta: -97.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:17:50,723 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 251.7MB. Free memory was 178.3MB in the beginning and 177.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:17:50,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.07ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 94.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.15ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.48ms. Allocated memory is still 167.8MB. Free memory was 92.4MB in the beginning and 90.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.27ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 81.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4976.26ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 80.7MB in the beginning and 178.3MB in the end (delta: -97.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 251.7MB. Free memory was 178.3MB in the beginning and 177.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function a and consists of 5 locations. One deterministic module has affine ranking function a and consists of 8 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 22 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital37 mio100 ax175 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp97 dnf661 smp55 tf105 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 235ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-09 15:17:50,751 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