./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:07:43,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:07:43,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-15 00:07:43,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:07:43,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:07:43,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:07:43,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:07:43,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:07:43,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:07:43,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:07:43,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:07:43,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:07:43,828 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:07:43,829 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-15 00:07:43,829 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-15 00:07:43,829 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-15 00:07:43,830 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-15 00:07:43,830 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-15 00:07:43,830 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-15 00:07:43,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:07:43,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-15 00:07:43,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:07:43,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:07:43,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-15 00:07:43,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-15 00:07:43,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-15 00:07:43,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:07:43,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:07:43,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:07:43,834 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-15 00:07:43,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:07:43,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:07:43,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:07:43,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:07:43,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:07:43,836 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-15 00:07:43,836 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2024-10-15 00:07:44,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:07:44,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:07:44,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:07:44,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:07:44,180 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:07:44,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-10-15 00:07:45,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:07:45,939 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:07:45,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-10-15 00:07:45,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255ac58a8/9487539fc67c440f8d75a7eeb5cec92a/FLAG0eb43a9b7 [2024-10-15 00:07:46,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255ac58a8/9487539fc67c440f8d75a7eeb5cec92a [2024-10-15 00:07:46,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:07:46,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:07:46,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:07:46,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:07:46,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:07:46,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d0b972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46, skipping insertion in model container [2024-10-15 00:07:46,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:07:46,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:07:46,532 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:07:46,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:07:46,566 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:07:46,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46 WrapperNode [2024-10-15 00:07:46,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:07:46,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:07:46,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:07:46,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:07:46,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,600 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-15 00:07:46,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:07:46,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:07:46,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:07:46,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:07:46,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,624 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-15 00:07:46,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:07:46,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:07:46,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:07:46,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:07:46,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (1/1) ... [2024-10-15 00:07:46,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:46,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:46,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:46,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-15 00:07:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:07:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:07:46,806 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:07:46,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:07:46,914 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-15 00:07:46,914 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:07:46,925 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:07:46,925 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 00:07:46,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:07:46 BoogieIcfgContainer [2024-10-15 00:07:46,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:07:46,927 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-15 00:07:46,927 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-15 00:07:46,932 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-15 00:07:46,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:07:46,933 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 12:07:46" (1/3) ... [2024-10-15 00:07:46,934 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4124eddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:07:46, skipping insertion in model container [2024-10-15 00:07:46,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:07:46,935 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:46" (2/3) ... [2024-10-15 00:07:46,935 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4124eddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:07:46, skipping insertion in model container [2024-10-15 00:07:46,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:07:46,935 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:07:46" (3/3) ... [2024-10-15 00:07:46,938 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2024-10-15 00:07:46,996 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-15 00:07:46,996 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-15 00:07:46,996 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-15 00:07:46,997 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-15 00:07:46,997 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-15 00:07:46,997 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-15 00:07:46,997 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-15 00:07:46,997 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-15 00:07:47,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:47,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-15 00:07:47,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:47,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:47,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:07:47,035 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:07:47,035 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-15 00:07:47,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:47,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-15 00:07:47,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:47,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:47,037 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:07:47,038 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:07:47,046 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2024-10-15 00:07:47,046 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2024-10-15 00:07:47,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-15 00:07:47,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:47,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22787700] [2024-10-15 00:07:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:47,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:47,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-10-15 00:07:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:47,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322445582] [2024-10-15 00:07:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:47,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-10-15 00:07:47,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:47,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285295445] [2024-10-15 00:07:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:47,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:47,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:47,351 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:47,352 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:47,352 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:47,352 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:47,352 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:47,353 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,353 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:47,353 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:47,354 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-10-15 00:07:47,354 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:47,354 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:47,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,475 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:47,476 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:47,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-15 00:07:47,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:47,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,506 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:47,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:47,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-15 00:07:47,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-15 00:07:47,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:47,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,551 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:47,552 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:47,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-15 00:07:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-15 00:07:47,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:47,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-15 00:07:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-15 00:07:47,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:47,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,659 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:47,660 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=2}, {ULTIMATE.start_main_~a~0#1=-3}, {ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-10-15 00:07:47,677 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 [2024-10-15 00:07:47,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-15 00:07:47,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:47,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-15 00:07:47,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-15 00:07:47,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:47,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:47,843 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:07:47,850 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 [2024-10-15 00:07:47,851 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:47,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:47,851 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:47,851 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:47,851 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:07:47,851 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,851 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:47,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:47,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-10-15 00:07:47,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:47,852 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:47,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:47,957 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:47,962 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:07:47,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:47,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:47,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:47,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-15 00:07:47,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:47,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:47,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:47,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:47,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:47,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:47,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:47,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:47,990 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:48,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-15 00:07:48,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:48,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-15 00:07:48,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:48,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:48,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:48,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:48,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:48,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:48,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:48,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:48,028 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:48,048 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 [2024-10-15 00:07:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,052 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) [2024-10-15 00:07:48,053 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 [2024-10-15 00:07:48,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:48,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:48,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:48,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:48,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:48,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:48,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:48,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:48,072 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:48,089 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 [2024-10-15 00:07:48,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,092 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) [2024-10-15 00:07:48,093 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 [2024-10-15 00:07:48,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:48,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:48,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:48,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:48,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:48,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:48,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:48,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:48,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:07:48,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:07:48,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-15 00:07:48,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,148 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) [2024-10-15 00:07:48,149 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 [2024-10-15 00:07:48,150 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:07:48,150 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:07:48,151 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:07:48,151 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-15 00:07:48,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-15 00:07:48,166 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:07:48,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:48,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:48,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:48,219 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:48,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:48,254 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:07:48,256 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:48,305 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 [2024-10-15 00:07:48,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 38 transitions. Complement of second has 6 states. [2024-10-15 00:07:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-10-15 00:07:48,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-15 00:07:48,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:48,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-15 00:07:48,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:48,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-15 00:07:48,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:48,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 38 transitions. [2024-10-15 00:07:48,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-15 00:07:48,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 15 states and 22 transitions. [2024-10-15 00:07:48,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-15 00:07:48,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-15 00:07:48,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2024-10-15 00:07:48,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:48,357 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2024-10-15 00:07:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2024-10-15 00:07:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-15 00:07:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-10-15 00:07:48,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-15 00:07:48,380 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-15 00:07:48,381 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-15 00:07:48,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-10-15 00:07:48,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-15 00:07:48,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:48,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:48,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-15 00:07:48,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-15 00:07:48,382 INFO L745 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 77#L18 assume main_~x~0#1 > 0; 78#L19 [2024-10-15 00:07:48,382 INFO L747 eck$LassoCheckResult]: Loop: 78#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 75#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 81#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 82#L18 assume main_~x~0#1 > 0; 78#L19 [2024-10-15 00:07:48,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-15 00:07:48,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471373114] [2024-10-15 00:07:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:48,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:48,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1456270, now seen corresponding path program 1 times [2024-10-15 00:07:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4765716] [2024-10-15 00:07:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:48,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:48,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:48,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4765716] [2024-10-15 00:07:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4765716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:07:48,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:07:48,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:07:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122778576] [2024-10-15 00:07:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:07:48,472 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-15 00:07:48,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:07:48,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:07:48,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:07:48,476 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:48,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:07:48,501 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-15 00:07:48,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2024-10-15 00:07:48,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:48,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2024-10-15 00:07:48,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-15 00:07:48,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-15 00:07:48,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2024-10-15 00:07:48,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:48,504 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-15 00:07:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2024-10-15 00:07:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-15 00:07:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-10-15 00:07:48,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-15 00:07:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:07:48,507 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-15 00:07:48,508 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-15 00:07:48,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-10-15 00:07:48,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:48,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:48,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:48,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-15 00:07:48,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:07:48,509 INFO L745 eck$LassoCheckResult]: Stem: 117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 121#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 116#L18 assume main_~x~0#1 > 0; 119#L19 [2024-10-15 00:07:48,510 INFO L747 eck$LassoCheckResult]: Loop: 119#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 108#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 109#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 112#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 115#L18 assume main_~x~0#1 > 0; 119#L19 [2024-10-15 00:07:48,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2024-10-15 00:07:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:48,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266178416] [2024-10-15 00:07:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:48,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,525 INFO L85 PathProgramCache]: Analyzing trace with hash 46857754, now seen corresponding path program 1 times [2024-10-15 00:07:48,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:48,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848445313] [2024-10-15 00:07:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:48,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:48,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:48,538 INFO L85 PathProgramCache]: Analyzing trace with hash 585782485, now seen corresponding path program 1 times [2024-10-15 00:07:48,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:48,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988706839] [2024-10-15 00:07:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:48,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:48,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:48,677 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:48,678 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:48,680 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:48,680 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:48,680 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:48,680 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,680 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:48,681 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:48,681 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-10-15 00:07:48,681 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:48,681 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:48,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,749 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:48,749 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,750 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) [2024-10-15 00:07:48,751 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 [2024-10-15 00:07:48,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:48,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:48,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,780 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) [2024-10-15 00:07:48,781 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 [2024-10-15 00:07:48,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:48,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:48,916 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:07:48,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:48,922 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:48,922 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:48,922 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:48,922 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:48,922 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:07:48,922 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,922 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:48,922 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:48,922 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-10-15 00:07:48,922 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:48,922 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:48,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:48,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:48,994 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:07:48,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:48,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:48,996 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) [2024-10-15 00:07:48,998 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 [2024-10-15 00:07:48,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:49,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:49,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:49,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:49,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:49,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:49,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:49,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:49,018 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:07:49,021 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-15 00:07:49,022 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:07:49,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:49,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:49,025 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) [2024-10-15 00:07:49,028 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 [2024-10-15 00:07:49,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:07:49,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:07:49,033 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:07:49,033 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 [] [2024-10-15 00:07:49,049 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 [2024-10-15 00:07:49,051 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:07:49,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:49,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:49,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:49,083 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-15 00:07:49,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:49,153 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-15 00:07:49,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:49,255 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 10 states. [2024-10-15 00:07:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-10-15 00:07:49,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 5 letters. [2024-10-15 00:07:49,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:49,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 9 letters. Loop has 5 letters. [2024-10-15 00:07:49,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:49,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 10 letters. [2024-10-15 00:07:49,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:49,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2024-10-15 00:07:49,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-15 00:07:49,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 50 transitions. [2024-10-15 00:07:49,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-15 00:07:49,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-10-15 00:07:49,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 50 transitions. [2024-10-15 00:07:49,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:49,262 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 50 transitions. [2024-10-15 00:07:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 50 transitions. [2024-10-15 00:07:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-10-15 00:07:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2024-10-15 00:07:49,265 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-10-15 00:07:49,265 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-10-15 00:07:49,265 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-15 00:07:49,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 44 transitions. [2024-10-15 00:07:49,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:49,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:49,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:49,267 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-15 00:07:49,267 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-10-15 00:07:49,267 INFO L745 eck$LassoCheckResult]: Stem: 227#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 231#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 235#L18 assume main_~x~0#1 > 0; 234#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-10-15 00:07:49,267 INFO L747 eck$LassoCheckResult]: Loop: 215#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 224#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 220#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 221#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 239#L18 assume main_~x~0#1 > 0; 229#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-10-15 00:07:49,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,268 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-15 00:07:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242838192] [2024-10-15 00:07:49,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:49,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:49,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242838192] [2024-10-15 00:07:49,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242838192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:07:49,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:07:49,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:07:49,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632287374] [2024-10-15 00:07:49,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:07:49,307 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:07:49,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 1 times [2024-10-15 00:07:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:49,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393266896] [2024-10-15 00:07:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:49,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393266896] [2024-10-15 00:07:49,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393266896] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:07:49,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159091852] [2024-10-15 00:07:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:07:49,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:49,356 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:07:49,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-15 00:07:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:49,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:49,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:49,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:07:49,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:49,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159091852] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:07:49,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:07:49,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-10-15 00:07:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261652434] [2024-10-15 00:07:49,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:07:49,439 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-15 00:07:49,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:07:49,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:07:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:07:49,440 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:07:49,468 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2024-10-15 00:07:49,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2024-10-15 00:07:49,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:49,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2024-10-15 00:07:49,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-10-15 00:07:49,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-15 00:07:49,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2024-10-15 00:07:49,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:49,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2024-10-15 00:07:49,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2024-10-15 00:07:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-10-15 00:07:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 47 transitions. [2024-10-15 00:07:49,477 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-10-15 00:07:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:07:49,479 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-10-15 00:07:49,479 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-15 00:07:49,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 47 transitions. [2024-10-15 00:07:49,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:49,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:49,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:49,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-15 00:07:49,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-15 00:07:49,481 INFO L745 eck$LassoCheckResult]: Stem: 333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 334#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 328#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 324#L18 assume main_~x~0#1 > 0; 325#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-10-15 00:07:49,481 INFO L747 eck$LassoCheckResult]: Loop: 318#L19-2 assume !(main_~x~0#1 == main_~a~0#1); 320#L19-4 havoc main_#t~bitwise2#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise2#1 >= -2147483648; 338#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 341#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 340#L18 assume main_~x~0#1 > 0; 335#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-10-15 00:07:49,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2024-10-15 00:07:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875096114] [2024-10-15 00:07:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:49,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1598506711, now seen corresponding path program 1 times [2024-10-15 00:07:49,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:49,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445648426] [2024-10-15 00:07:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:49,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 352137795, now seen corresponding path program 1 times [2024-10-15 00:07:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:49,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049384407] [2024-10-15 00:07:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:49,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:49,762 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:49,763 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:49,763 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:49,763 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:49,763 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:49,763 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:49,763 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:49,763 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:49,763 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2024-10-15 00:07:49,763 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:49,763 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:49,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:49,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:49,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:49,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-15 00:07:49,883 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-15 00:07:50,118 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:50,118 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:50,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,121 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) [2024-10-15 00:07:50,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,129 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 [2024-10-15 00:07:50,161 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 [2024-10-15 00:07:50,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,163 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) [2024-10-15 00:07:50,164 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 [2024-10-15 00:07:50,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:50,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,287 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,288 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] [2024-10-15 00:07:50,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-15 00:07:50,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,309 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) [2024-10-15 00:07:50,310 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 [2024-10-15 00:07:50,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,323 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,323 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:50,335 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 [2024-10-15 00:07:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,337 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) [2024-10-15 00:07:50,339 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 [2024-10-15 00:07:50,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,351 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,352 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:50,370 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 [2024-10-15 00:07:50,406 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:50,406 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:50,407 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:50,407 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:50,407 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:50,407 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,407 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:50,407 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:50,407 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-10-15 00:07:50,407 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:50,407 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:50,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:50,514 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-15 00:07:50,723 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:50,724 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:50,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,726 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) [2024-10-15 00:07:50,728 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 [2024-10-15 00:07:50,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,744 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,744 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:50,760 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 [2024-10-15 00:07:50,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,763 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) [2024-10-15 00:07:50,765 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 [2024-10-15 00:07:50,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,784 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,785 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:50,801 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 [2024-10-15 00:07:50,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,806 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) [2024-10-15 00:07:50,808 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 [2024-10-15 00:07:50,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,827 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:50,827 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:50,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-15 00:07:50,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,845 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) [2024-10-15 00:07:50,846 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 [2024-10-15 00:07:50,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:50,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:50,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-15 00:07:50,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:50,879 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) [2024-10-15 00:07:50,882 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 [2024-10-15 00:07:50,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:50,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:51,119 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:07:51,125 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 [2024-10-15 00:07:51,125 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:51,126 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:51,126 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:51,126 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:51,126 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:07:51,126 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:51,126 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:51,126 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:51,126 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-10-15 00:07:51,126 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:51,126 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:51,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:51,235 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-15 00:07:51,415 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:51,416 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:07:51,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:51,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:51,418 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) [2024-10-15 00:07:51,434 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 [2024-10-15 00:07:51,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:51,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:51,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:51,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:51,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:51,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:51,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:51,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:51,450 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:51,461 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 [2024-10-15 00:07:51,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:51,463 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) [2024-10-15 00:07:51,464 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 [2024-10-15 00:07:51,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:51,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:51,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:51,475 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-10-15 00:07:51,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:51,513 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-10-15 00:07:51,513 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-10-15 00:07:51,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:07:51,664 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-10-15 00:07:51,664 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-10-15 00:07:51,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:51,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:51,666 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:51,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-15 00:07:51,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:07:51,687 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-10-15 00:07:51,687 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:07:51,687 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] [2024-10-15 00:07:51,700 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 [2024-10-15 00:07:51,706 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-15 00:07:51,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:51,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:51,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:51,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-15 00:07:51,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:51,888 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2024-10-15 00:07:51,888 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:51,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 106 transitions. Complement of second has 12 states. [2024-10-15 00:07:51,982 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 [2024-10-15 00:07:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2024-10-15 00:07:51,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-15 00:07:51,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:51,984 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:07:52,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:52,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:52,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:52,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-15 00:07:52,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:52,151 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2024-10-15 00:07:52,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:52,328 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 97 states and 136 transitions. Complement of second has 20 states. [2024-10-15 00:07:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2024-10-15 00:07:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2024-10-15 00:07:52,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-15 00:07:52,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:52,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-10-15 00:07:52,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:52,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-10-15 00:07:52,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:52,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 136 transitions. [2024-10-15 00:07:52,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-10-15 00:07:52,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 88 states and 123 transitions. [2024-10-15 00:07:52,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-10-15 00:07:52,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-10-15 00:07:52,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 123 transitions. [2024-10-15 00:07:52,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:52,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-10-15 00:07:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 123 transitions. [2024-10-15 00:07:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2024-10-15 00:07:52,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 61 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:52,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-10-15 00:07:52,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-10-15 00:07:52,353 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-10-15 00:07:52,353 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-15 00:07:52,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 90 transitions. [2024-10-15 00:07:52,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-15 00:07:52,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:52,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:52,358 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-15 00:07:52,358 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-10-15 00:07:52,358 INFO L745 eck$LassoCheckResult]: Stem: 689#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 690#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 693#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 716#L18 assume main_~x~0#1 > 0; 714#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 713#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 677#L19-5 [2024-10-15 00:07:52,358 INFO L747 eck$LassoCheckResult]: Loop: 677#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 686#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 682#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 683#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 732#L18 assume main_~x~0#1 > 0; 697#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 677#L19-5 [2024-10-15 00:07:52,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2024-10-15 00:07:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731577626] [2024-10-15 00:07:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:52,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 2 times [2024-10-15 00:07:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:52,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691168677] [2024-10-15 00:07:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:52,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:52,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:52,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691168677] [2024-10-15 00:07:52,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691168677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:07:52,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056081458] [2024-10-15 00:07:52,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:07:52,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:07:52,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,422 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-15 00:07:52,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 00:07:52,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:07:52,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:52,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:52,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:07:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:52,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056081458] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:07:52,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:07:52,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-10-15 00:07:52,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054552320] [2024-10-15 00:07:52,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:07:52,491 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-15 00:07:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:07:52,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:07:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:07:52,492 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:07:52,526 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-10-15 00:07:52,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2024-10-15 00:07:52,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-15 00:07:52,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 45 transitions. [2024-10-15 00:07:52,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-15 00:07:52,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-15 00:07:52,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-10-15 00:07:52,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:52,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-10-15 00:07:52,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-10-15 00:07:52,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-10-15 00:07:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-10-15 00:07:52,536 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-10-15 00:07:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:07:52,538 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-10-15 00:07:52,538 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-15 00:07:52,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 42 transitions. [2024-10-15 00:07:52,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-15 00:07:52,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:52,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:52,539 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:07:52,539 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:07:52,539 INFO L745 eck$LassoCheckResult]: Stem: 841#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 842#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 843#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 852#L18 assume main_~x~0#1 > 0; 847#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 827#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 828#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 836#L18-2 [2024-10-15 00:07:52,539 INFO L747 eck$LassoCheckResult]: Loop: 836#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 835#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 836#L18-2 [2024-10-15 00:07:52,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663410, now seen corresponding path program 2 times [2024-10-15 00:07:52,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:52,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252953292] [2024-10-15 00:07:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:52,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:52,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 2 times [2024-10-15 00:07:52,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:52,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410527800] [2024-10-15 00:07:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:52,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:52,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:52,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash 585782500, now seen corresponding path program 1 times [2024-10-15 00:07:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:52,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082550837] [2024-10-15 00:07:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:52,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:52,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082550837] [2024-10-15 00:07:52,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082550837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:07:52,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:07:52,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:07:52,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915815895] [2024-10-15 00:07:52,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:07:52,621 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:52,621 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:52,621 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:52,621 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:52,621 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:52,621 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,622 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:52,622 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:52,622 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-10-15 00:07:52,622 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:52,622 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:52,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,676 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:52,677 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:52,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,680 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-15 00:07:52,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:52,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:52,701 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:52,702 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:52,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,721 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-15 00:07:52,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:52,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:52,761 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:07:52,762 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:07:52,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-15 00:07:52,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,782 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-15 00:07:52,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:52,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:52,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,810 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-15 00:07:52,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:52,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:52,848 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:07:52,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,855 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:52,855 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:52,855 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:52,855 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:52,855 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:07:52,855 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,856 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:52,856 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:52,856 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-10-15 00:07:52,856 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:52,856 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:52,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:52,906 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:52,906 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:07:52,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,908 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-15 00:07:52,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:52,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:52,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:52,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:52,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:52,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:52,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:52,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:52,927 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:52,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,947 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-15 00:07:52,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:52,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:52,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:52,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:52,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:52,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:52,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:52,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:52,970 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:07:52,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:52,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:52,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:52,991 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:52,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-15 00:07:52,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:53,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:53,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:53,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:53,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:53,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:53,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:53,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:53,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:07:53,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:07:53,011 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-15 00:07:53,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,013 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-15 00:07:53,015 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:07:53,015 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:07:53,016 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:07:53,016 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-15 00:07:53,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:53,036 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:07:53,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,070 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,074 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:07:53,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 85 states and 109 transitions. Complement of second has 5 states. [2024-10-15 00:07:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:53,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-10-15 00:07:53,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-15 00:07:53,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-15 00:07:53,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-15 00:07:53,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 109 transitions. [2024-10-15 00:07:53,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-15 00:07:53,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 63 states and 82 transitions. [2024-10-15 00:07:53,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-15 00:07:53,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-15 00:07:53,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 82 transitions. [2024-10-15 00:07:53,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:53,111 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-10-15 00:07:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 82 transitions. [2024-10-15 00:07:53,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 35. [2024-10-15 00:07:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-10-15 00:07:53,114 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-10-15 00:07:53,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:07:53,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:07:53,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:07:53,115 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:07:53,136 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-10-15 00:07:53,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2024-10-15 00:07:53,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-15 00:07:53,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 46 transitions. [2024-10-15 00:07:53,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-15 00:07:53,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-15 00:07:53,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-10-15 00:07:53,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:07:53,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-10-15 00:07:53,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-10-15 00:07:53,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2024-10-15 00:07:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-10-15 00:07:53,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-10-15 00:07:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:07:53,144 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-10-15 00:07:53,144 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-15 00:07:53,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 43 transitions. [2024-10-15 00:07:53,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-15 00:07:53,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:07:53,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:07:53,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-15 00:07:53,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:07:53,145 INFO L745 eck$LassoCheckResult]: Stem: 1085#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1086#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1087#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1095#L18 assume main_~x~0#1 > 0; 1093#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1072#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1073#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1080#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1081#L18 assume main_~x~0#1 > 0; 1088#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 1089#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1077#L18-2 [2024-10-15 00:07:53,146 INFO L747 eck$LassoCheckResult]: Loop: 1077#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1076#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1077#L18-2 [2024-10-15 00:07:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 296252863, now seen corresponding path program 1 times [2024-10-15 00:07:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374021650] [2024-10-15 00:07:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:07:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374021650] [2024-10-15 00:07:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374021650] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:07:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718479073] [2024-10-15 00:07:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:53,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:07:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,240 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-10-15 00:07:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:07:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718479073] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:07:53,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:07:53,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-15 00:07:53,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041149352] [2024-10-15 00:07:53,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:07:53,355 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:07:53,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 3 times [2024-10-15 00:07:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:07:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512545638] [2024-10-15 00:07:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:07:53,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:07:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:53,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:07:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:07:53,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:07:53,392 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:53,392 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:53,392 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:53,392 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:53,392 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:07:53,392 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,392 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:53,393 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:53,393 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-10-15 00:07:53,393 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:53,393 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:53,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,441 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:53,442 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:07:53,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,444 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-15 00:07:53,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:07:53,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:53,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:53,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,477 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-15 00:07:53,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:07:53,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:07:53,507 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:07:53,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-15 00:07:53,512 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:07:53,512 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:07:53,512 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:07:53,512 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:07:53,512 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:07:53,512 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,512 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:07:53,513 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:07:53,513 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-10-15 00:07:53,513 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:07:53,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:07:53,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:07:53,556 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:07:53,556 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:07:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,558 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-15 00:07:53,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:07:53,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:07:53,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:07:53,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:07:53,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:07:53,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:07:53,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:07:53,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:07:53,574 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:07:53,576 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:07:53,576 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-15 00:07:53,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:07:53,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:07:53,578 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:07:53,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-15 00:07:53,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:07:53,579 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:07:53,579 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:07:53,579 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-15 00:07:53,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:53,591 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:07:53,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,628 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,632 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:07:53,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,649 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-10-15 00:07:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-10-15 00:07:53,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-15 00:07:53,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,651 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:07:53,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,687 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,691 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:07:53,691 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,704 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-10-15 00:07:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-10-15 00:07:53,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-15 00:07:53,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,706 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:07:53,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:07:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:07:53,744 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:07:53,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:07:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:07:53,747 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:07:53,747 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 70 transitions. Complement of second has 4 states. [2024-10-15 00:07:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:07:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2024-10-15 00:07:53,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-15 00:07:53,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 2 letters. [2024-10-15 00:07:53,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-15 00:07:53,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:07:53,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 70 transitions. [2024-10-15 00:07:53,770 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:07:53,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-10-15 00:07:53,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:07:53,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:07:53,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:07:53,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:07:53,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:07:53,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:07:53,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:07:53,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-15 00:07:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-15 00:07:53,774 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:07:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:07:53,774 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-15 00:07:53,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-15 00:07:53,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:07:53,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-15 00:07:53,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:07:53,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:07:53,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:07:53,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:07:53,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:07:53,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:07:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-15 00:07:53,776 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:07:53,776 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-15 00:07:53,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-15 00:07:53,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:07:53,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-15 00:07:53,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 12:07:53 BoogieIcfgContainer [2024-10-15 00:07:53,786 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-15 00:07:53,787 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:07:53,787 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:07:53,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:07:53,788 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:07:46" (3/4) ... [2024-10-15 00:07:53,790 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-15 00:07:53,791 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:07:53,792 INFO L158 Benchmark]: Toolchain (without parser) took 7471.28ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 110.9MB in the beginning and 85.4MB in the end (delta: 25.4MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-10-15 00:07:53,792 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 109.1MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:07:53,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.21ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 100.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 00:07:53,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.79ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:07:53,793 INFO L158 Benchmark]: Boogie Preprocessor took 39.54ms. Allocated memory is still 146.8MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:07:53,793 INFO L158 Benchmark]: RCFGBuilder took 283.35ms. Allocated memory is still 146.8MB. Free memory was 97.6MB in the beginning and 87.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 00:07:53,793 INFO L158 Benchmark]: BuchiAutomizer took 6859.20ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 87.2MB in the beginning and 85.4MB in the end (delta: 1.7MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2024-10-15 00:07:53,794 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 178.3MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:07:53,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 109.1MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.21ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 100.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.79ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 98.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.54ms. Allocated memory is still 146.8MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 283.35ms. Allocated memory is still 146.8MB. Free memory was 97.6MB in the beginning and 87.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6859.20ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 87.2MB in the beginning and 85.4MB in the end (delta: 1.7MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 178.3MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 12 locations. One deterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. One nondeterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 5.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 73 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 84 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf95 smp81 dnf442 smp75 tf108 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 225ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-15 00:07:53,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:54,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-10-15 00:07:54,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:54,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-10-15 00:07:54,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-15 00:07:54,827 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