./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f 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 ../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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:04:11,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:04:11,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 02:04:11,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:04:11,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:04:11,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:04:11,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:04:11,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:04:11,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:04:11,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:04:11,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:04:11,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:04:11,521 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:04:11,522 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:04:11,525 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:04:11,526 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:04:11,526 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:04:11,526 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:04:11,527 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:04:11,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:04:11,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:04:11,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:04:11,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:04:11,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:04:11,529 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:04:11,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:04:11,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:04:11,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:04:11,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:04:11,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:04:11,548 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:04:11,548 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2024-11-23 02:04:11,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:04:11,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:04:11,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:04:11,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:04:11,797 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:04:11,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-02.c [2024-11-23 02:04:13,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:04:13,189 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:04:13,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-11-23 02:04:13,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e782e61e/6029f9c908554be380f3e9833fe751eb/FLAGf41fe8f49 [2024-11-23 02:04:13,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e782e61e/6029f9c908554be380f3e9833fe751eb [2024-11-23 02:04:13,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:04:13,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:04:13,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:04:13,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:04:13,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:04:13,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4472ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13, skipping insertion in model container [2024-11-23 02:04:13,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:04:13,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:04:13,785 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:04:13,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:04:13,804 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:04:13,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13 WrapperNode [2024-11-23 02:04:13,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:04:13,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:04:13,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:04:13,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:04:13,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,827 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-23 02:04:13,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:04:13,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:04:13,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:04:13,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:04:13,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,841 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 02:04:13,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:04:13,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:04:13,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:04:13,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:04:13,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (1/1) ... [2024-11-23 02:04:13,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:13,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:13,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:04:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:04:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:04:13,958 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:04:13,960 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:04:14,046 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-23 02:04:14,046 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:04:14,062 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:04:14,062 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 02:04:14,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:14 BoogieIcfgContainer [2024-11-23 02:04:14,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:04:14,065 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:04:14,065 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:04:14,069 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:04:14,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:14,070 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:04:13" (1/3) ... [2024-11-23 02:04:14,071 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66ae245a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:14, skipping insertion in model container [2024-11-23 02:04:14,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:14,072 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:13" (2/3) ... [2024-11-23 02:04:14,072 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66ae245a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:14, skipping insertion in model container [2024-11-23 02:04:14,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:14,072 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:14" (3/3) ... [2024-11-23 02:04:14,074 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2024-11-23 02:04:14,168 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:04:14,168 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:04:14,169 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:04:14,169 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:04:14,169 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:04:14,169 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:04:14,169 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:04:14,170 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:04:14,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:14,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 02:04:14,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:14,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:14,191 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:04:14,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 02:04:14,191 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:04:14,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:14,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 02:04:14,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:14,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:14,194 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:04:14,194 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 02:04:14,200 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2024-11-23 02:04:14,200 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2024-11-23 02:04:14,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-23 02:04:14,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:14,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498448333] [2024-11-23 02:04:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:14,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:14,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:14,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-11-23 02:04:14,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:14,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426311266] [2024-11-23 02:04:14,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:14,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:14,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:14,317 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-11-23 02:04:14,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:14,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874750033] [2024-11-23 02:04:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:14,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:14,411 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:14,412 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:14,412 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:14,412 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:14,412 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:14,412 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,412 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:14,412 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:14,412 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-23 02:04:14,412 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:14,412 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:14,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,492 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:14,492 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:14,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 02:04:14,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:14,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,513 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:14,513 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:14,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:14,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 02:04:14,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:14,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,534 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:14,535 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:14,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:14,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 02:04:14,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:14,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,566 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 [2024-11-23 02:04:14,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 02:04:14,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:14,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,598 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:14,598 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=3}, {ULTIMATE.start_main_~a~0#1=-2}, {ULTIMATE.start_main_~a~0#1=-2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2024-11-23 02:04:14,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-23 02:04:14,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 02:04:14,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:14,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:14,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,635 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 02:04:14,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:14,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:14,661 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:14,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 02:04:14,666 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:14,666 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:14,666 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:14,666 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:14,666 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:14,666 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,666 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:14,666 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:14,666 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-23 02:04:14,666 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:14,666 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:14,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:14,737 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:14,740 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:14,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 02:04:14,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:14,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:14,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:14,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:14,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:14,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:14,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:14,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:14,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:14,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 02:04:14,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,768 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 02:04:14,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:14,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:14,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:14,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:14,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:14,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:14,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:14,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:14,783 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:14,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:14,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,790 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 02:04:14,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:14,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:14,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:14,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:14,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:14,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:14,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:14,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:14,805 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:14,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-23 02:04:14,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,813 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 02:04:14,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:14,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:14,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:14,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:14,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:14,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:14,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:14,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:14,828 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:14,830 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:04:14,831 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:04:14,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:14,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:14,854 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:14,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 02:04:14,856 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:14,856 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:14,856 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:14,856 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-23 02:04:14,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-23 02:04:14,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:14,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:14,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:14,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:14,918 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:14,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:14,947 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 02:04:14,949 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:14,984 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 38 transitions. Complement of second has 6 states. [2024-11-23 02:04:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-23 02:04:14,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-23 02:04:14,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:14,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-23 02:04:14,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:14,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-23 02:04:14,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:14,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 38 transitions. [2024-11-23 02:04:14,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 02:04:14,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 15 states and 22 transitions. [2024-11-23 02:04:14,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-23 02:04:14,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-23 02:04:14,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2024-11-23 02:04:14,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:14,999 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2024-11-23 02:04:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2024-11-23 02:04:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-11-23 02:04:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-23 02:04:15,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-23 02:04:15,019 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-23 02:04:15,019 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:04:15,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-23 02:04:15,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 02:04:15,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:15,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:15,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-23 02:04:15,020 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-23 02:04:15,020 INFO L745 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 77#L18 assume main_~x~0#1 > 0; 78#L19 [2024-11-23 02:04:15,020 INFO L747 eck$LassoCheckResult]: Loop: 78#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 75#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 81#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 82#L18 assume main_~x~0#1 > 0; 78#L19 [2024-11-23 02:04:15,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-23 02:04:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542628181] [2024-11-23 02:04:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1456270, now seen corresponding path program 1 times [2024-11-23 02:04:15,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926629605] [2024-11-23 02:04:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:15,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926629605] [2024-11-23 02:04:15,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926629605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:04:15,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:04:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 02:04:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452295314] [2024-11-23 02:04:15,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:04:15,102 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:04:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:04:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:04:15,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:04:15,105 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:04:15,128 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-11-23 02:04:15,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2024-11-23 02:04:15,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:15,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2024-11-23 02:04:15,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-23 02:04:15,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-23 02:04:15,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2024-11-23 02:04:15,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:15,129 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-23 02:04:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2024-11-23 02:04:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-23 02:04:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-11-23 02:04:15,130 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-23 02:04:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:04:15,131 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-23 02:04:15,131 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:04:15,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-11-23 02:04:15,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:15,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:15,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:15,132 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-23 02:04:15,132 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 02:04:15,132 INFO L745 eck$LassoCheckResult]: Stem: 117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 121#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 116#L18 assume main_~x~0#1 > 0; 119#L19 [2024-11-23 02:04:15,132 INFO L747 eck$LassoCheckResult]: Loop: 119#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 108#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 109#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 112#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 115#L18 assume main_~x~0#1 > 0; 119#L19 [2024-11-23 02:04:15,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,133 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2024-11-23 02:04:15,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739124675] [2024-11-23 02:04:15,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:15,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,137 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:04:15,137 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:04:15,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,140 INFO L85 PathProgramCache]: Analyzing trace with hash 46857754, now seen corresponding path program 1 times [2024-11-23 02:04:15,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340450813] [2024-11-23 02:04:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash 585782485, now seen corresponding path program 1 times [2024-11-23 02:04:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528041351] [2024-11-23 02:04:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,223 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:15,224 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:15,224 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:15,224 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:15,224 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:15,224 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,224 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:15,224 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:15,225 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-23 02:04:15,225 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:15,225 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:15,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,265 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:15,265 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:15,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:15,267 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:15,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 02:04:15,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:15,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:15,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-23 02:04:15,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:15,291 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:15,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 02:04:15,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:15,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:15,356 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:15,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-23 02:04:15,362 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:15,362 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:15,362 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:15,362 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:15,362 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:15,362 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,362 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:15,362 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:15,362 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-23 02:04:15,363 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:15,363 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:15,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:15,411 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:15,412 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:15,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:15,414 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:15,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 02:04:15,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:15,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:15,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:15,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:15,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:15,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:15,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:15,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:15,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:15,436 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-23 02:04:15,437 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:04:15,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:15,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:15,439 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:15,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-23 02:04:15,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:15,453 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:15,453 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:15,453 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-23 02:04:15,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-23 02:04:15,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 02:04:15,461 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:15,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:15,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,511 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:04:15,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,579 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-23 02:04:15,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,658 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 10 states. [2024-11-23 02:04:15,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-11-23 02:04:15,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-23 02:04:15,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:15,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-23 02:04:15,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:15,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-23 02:04:15,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:15,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2024-11-23 02:04:15,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-23 02:04:15,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 50 transitions. [2024-11-23 02:04:15,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-23 02:04:15,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-23 02:04:15,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 50 transitions. [2024-11-23 02:04:15,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:15,663 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 50 transitions. [2024-11-23 02:04:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 50 transitions. [2024-11-23 02:04:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-23 02:04:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2024-11-23 02:04:15,667 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-11-23 02:04:15,667 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 44 transitions. [2024-11-23 02:04:15,667 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 02:04:15,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 44 transitions. [2024-11-23 02:04:15,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:15,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:15,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:15,670 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-23 02:04:15,670 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-23 02:04:15,670 INFO L745 eck$LassoCheckResult]: Stem: 227#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 231#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 235#L18 assume main_~x~0#1 > 0; 234#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-11-23 02:04:15,671 INFO L747 eck$LassoCheckResult]: Loop: 215#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 224#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 220#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 221#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 239#L18 assume main_~x~0#1 > 0; 229#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 215#L19-5 [2024-11-23 02:04:15,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-11-23 02:04:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408806711] [2024-11-23 02:04:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408806711] [2024-11-23 02:04:15,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408806711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:04:15,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:04:15,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:04:15,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924640259] [2024-11-23 02:04:15,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:04:15,715 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-23 02:04:15,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 1 times [2024-11-23 02:04:15,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074368884] [2024-11-23 02:04:15,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:15,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074368884] [2024-11-23 02:04:15,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074368884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:04:15,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858164319] [2024-11-23 02:04:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:04:15,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:15,772 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:04:15,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 02:04:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:15,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:15,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:04:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:15,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858164319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:04:15,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:04:15,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-23 02:04:15,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785223493] [2024-11-23 02:04:15,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:04:15,825 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:04:15,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:04:15,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:04:15,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:04:15,826 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:04:15,844 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2024-11-23 02:04:15,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2024-11-23 02:04:15,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:15,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2024-11-23 02:04:15,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-23 02:04:15,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-23 02:04:15,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2024-11-23 02:04:15,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:15,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2024-11-23 02:04:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2024-11-23 02:04:15,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-11-23 02:04:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 47 transitions. [2024-11-23 02:04:15,849 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-11-23 02:04:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:04:15,850 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 47 transitions. [2024-11-23 02:04:15,850 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-23 02:04:15,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 47 transitions. [2024-11-23 02:04:15,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:15,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:15,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:15,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-23 02:04:15,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:04:15,851 INFO L745 eck$LassoCheckResult]: Stem: 333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 334#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 328#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 324#L18 assume main_~x~0#1 > 0; 325#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-11-23 02:04:15,851 INFO L747 eck$LassoCheckResult]: Loop: 318#L19-2 assume !(main_~x~0#1 == main_~a~0#1); 320#L19-4 havoc main_#t~bitwise2#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise2#1 >= -2147483648; 338#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 341#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 340#L18 assume main_~x~0#1 > 0; 335#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 318#L19-2 [2024-11-23 02:04:15,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,852 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2024-11-23 02:04:15,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700252307] [2024-11-23 02:04:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1598506711, now seen corresponding path program 1 times [2024-11-23 02:04:15,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764538444] [2024-11-23 02:04:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:15,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash 352137795, now seen corresponding path program 1 times [2024-11-23 02:04:15,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:15,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066363644] [2024-11-23 02:04:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:15,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:15,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:16,020 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:16,021 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:16,021 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:16,021 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:16,021 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:16,021 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,021 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:16,021 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:16,021 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2024-11-23 02:04:16,022 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:16,022 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:16,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,049 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,092 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-23 02:04:16,261 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:16,261 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:16,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,266 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 02:04:16,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-23 02:04:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,291 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 02:04:16,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:16,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,378 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,379 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [15, 1, 15] Nus: [0, 0] [2024-11-23 02:04:16,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:16,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,386 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 02:04:16,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,399 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,399 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:16,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:16,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,406 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-23 02:04:16,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,418 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,418 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:16,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-23 02:04:16,442 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:16,442 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:16,442 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:16,442 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:16,442 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:16,442 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,442 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:16,442 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:16,442 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-23 02:04:16,442 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:16,442 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:16,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,517 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-23 02:04:16,642 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:16,643 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:16,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,644 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-23 02:04:16,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,667 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,667 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:16,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-23 02:04:16,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,675 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-23 02:04:16,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-23 02:04:16,701 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,701 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:16,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:16,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,708 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-23 02:04:16,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,720 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:16,720 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:16,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:16,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,727 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-23 02:04:16,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:16,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,745 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 [2024-11-23 02:04:16,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:16,748 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:16,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-23 02:04:16,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:16,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:16,883 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:16,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-23 02:04:16,891 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:16,891 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:16,891 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:16,891 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:16,891 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:16,891 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:16,891 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:16,891 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:16,891 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-23 02:04:16,891 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:16,891 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:16,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:16,971 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-23 02:04:17,124 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:17,124 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:17,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:17,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:17,126 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:17,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-23 02:04:17,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:17,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:17,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:17,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:17,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:17,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:17,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:17,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:17,141 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:17,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:17,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:17,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:17,148 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:17,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-23 02:04:17,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:17,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:17,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:17,161 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-23 02:04:17,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:17,187 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-23 02:04:17,187 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-23 02:04:17,240 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:17,301 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-11-23 02:04:17,301 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-11-23 02:04:17,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:17,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:17,303 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:17,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-23 02:04:17,305 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:17,320 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-23 02:04:17,320 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:17,320 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-11-23 02:04:17,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-23 02:04:17,330 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-23 02:04:17,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:17,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:17,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:17,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 02:04:17,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,452 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-23 02:04:17,452 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 106 transitions. Complement of second has 12 states. [2024-11-23 02:04:17,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-23 02:04:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 18 transitions. [2024-11-23 02:04:17,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-23 02:04:17,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:17,513 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:04:17,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:17,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:17,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:17,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 02:04:17,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,633 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-23 02:04:17,633 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,766 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 47 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 97 states and 136 transitions. Complement of second has 20 states. [2024-11-23 02:04:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2024-11-23 02:04:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2024-11-23 02:04:17,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-23 02:04:17,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:17,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-23 02:04:17,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:17,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-23 02:04:17,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:17,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 136 transitions. [2024-11-23 02:04:17,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-23 02:04:17,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 88 states and 123 transitions. [2024-11-23 02:04:17,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-11-23 02:04:17,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-23 02:04:17,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 123 transitions. [2024-11-23 02:04:17,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:17,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-23 02:04:17,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 123 transitions. [2024-11-23 02:04:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2024-11-23 02:04:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 61 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-11-23 02:04:17,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-23 02:04:17,780 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-23 02:04:17,781 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-23 02:04:17,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 90 transitions. [2024-11-23 02:04:17,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:04:17,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:17,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:17,783 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:04:17,783 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-23 02:04:17,784 INFO L745 eck$LassoCheckResult]: Stem: 689#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 690#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 693#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 716#L18 assume main_~x~0#1 > 0; 714#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 713#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 677#L19-5 [2024-11-23 02:04:17,784 INFO L747 eck$LassoCheckResult]: Loop: 677#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 686#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 682#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 683#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 732#L18 assume main_~x~0#1 > 0; 697#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 677#L19-5 [2024-11-23 02:04:17,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,784 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2024-11-23 02:04:17,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:17,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843847091] [2024-11-23 02:04:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:17,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:17,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:17,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:17,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1671524450, now seen corresponding path program 2 times [2024-11-23 02:04:17,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:17,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821635297] [2024-11-23 02:04:17,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:17,797 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:04:17,797 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:04:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821635297] [2024-11-23 02:04:17,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821635297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:04:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053118021] [2024-11-23 02:04:17,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:17,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:04:17,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:17,831 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:04:17,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-23 02:04:17,853 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:04:17,853 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:04:17,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:17,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:04:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053118021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:04:17,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:04:17,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-23 02:04:17,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343010416] [2024-11-23 02:04:17,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:04:17,873 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:04:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:04:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:04:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:04:17,874 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:04:17,896 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-11-23 02:04:17,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2024-11-23 02:04:17,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 02:04:17,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 45 transitions. [2024-11-23 02:04:17,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-23 02:04:17,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-23 02:04:17,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-11-23 02:04:17,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:17,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-23 02:04:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-11-23 02:04:17,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2024-11-23 02:04:17,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-11-23 02:04:17,902 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-23 02:04:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 02:04:17,902 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-23 02:04:17,902 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-23 02:04:17,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 42 transitions. [2024-11-23 02:04:17,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 02:04:17,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:17,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:17,903 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:04:17,903 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 02:04:17,903 INFO L745 eck$LassoCheckResult]: Stem: 841#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 842#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 843#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 852#L18 assume main_~x~0#1 > 0; 847#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 827#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 828#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 836#L18-2 [2024-11-23 02:04:17,903 INFO L747 eck$LassoCheckResult]: Loop: 836#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 835#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 836#L18-2 [2024-11-23 02:04:17,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663410, now seen corresponding path program 2 times [2024-11-23 02:04:17,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:17,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987491458] [2024-11-23 02:04:17,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:17,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:17,908 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:04:17,908 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:04:17,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:17,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:17,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 2 times [2024-11-23 02:04:17,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:17,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263443289] [2024-11-23 02:04:17,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:17,916 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:04:17,916 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:04:17,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:17,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:17,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash 585782500, now seen corresponding path program 1 times [2024-11-23 02:04:17,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:17,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17466534] [2024-11-23 02:04:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:17,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:17,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:17,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17466534] [2024-11-23 02:04:17,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17466534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:04:17,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:04:17,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:04:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204328412] [2024-11-23 02:04:17,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:04:17,972 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:17,972 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:17,972 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:17,972 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:17,972 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:17,972 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:17,972 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:17,972 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:17,972 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-23 02:04:17,972 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:17,972 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:17,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:17,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:17,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:17,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,007 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:18,007 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:18,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,008 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-23 02:04:18,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:18,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,022 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:18,022 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:18,028 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 [2024-11-23 02:04:18,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,029 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-23 02:04:18,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:18,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,041 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:18,041 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:18,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:18,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,048 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-23 02:04:18,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:18,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-23 02:04:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,067 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-23 02:04:18,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:18,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,090 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:18,093 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 [2024-11-23 02:04:18,094 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:18,094 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:18,094 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:18,094 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:18,094 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:18,094 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,094 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:18,094 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:18,094 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-23 02:04:18,097 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:18,097 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:18,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:18,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,142 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:18,143 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:18,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,145 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-23 02:04:18,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:18,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:18,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:18,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:18,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:18,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:18,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:18,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:18,158 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:18,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-23 02:04:18,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,166 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-23 02:04:18,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:18,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:18,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:18,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:18,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:18,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:18,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:18,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:18,179 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:18,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:18,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,186 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-23 02:04:18,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:18,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:18,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:18,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:18,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:18,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:18,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:18,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:18,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:18,204 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:04:18,204 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:04:18,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,205 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-23 02:04:18,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:18,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:18,207 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:18,207 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-23 02:04:18,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:18,213 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:18,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,241 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,243 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 02:04:18,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 42 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 85 states and 109 transitions. Complement of second has 5 states. [2024-11-23 02:04:18,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-11-23 02:04:18,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-23 02:04:18,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-23 02:04:18,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-23 02:04:18,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 109 transitions. [2024-11-23 02:04:18,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 02:04:18,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 63 states and 82 transitions. [2024-11-23 02:04:18,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-23 02:04:18,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-23 02:04:18,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 82 transitions. [2024-11-23 02:04:18,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:18,260 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-11-23 02:04:18,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 82 transitions. [2024-11-23 02:04:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 35. [2024-11-23 02:04:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-23 02:04:18,265 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-23 02:04:18,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:04:18,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:04:18,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:04:18,266 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:04:18,279 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-11-23 02:04:18,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2024-11-23 02:04:18,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 02:04:18,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 46 transitions. [2024-11-23 02:04:18,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-23 02:04:18,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-23 02:04:18,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-11-23 02:04:18,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:18,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-11-23 02:04:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-11-23 02:04:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2024-11-23 02:04:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-11-23 02:04:18,282 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-23 02:04:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:04:18,283 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-23 02:04:18,283 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-23 02:04:18,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 43 transitions. [2024-11-23 02:04:18,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 02:04:18,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:18,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:18,283 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 02:04:18,283 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 02:04:18,283 INFO L745 eck$LassoCheckResult]: Stem: 1085#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1086#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1087#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1095#L18 assume main_~x~0#1 > 0; 1093#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1072#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1073#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1080#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1081#L18 assume main_~x~0#1 > 0; 1088#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 1089#L19-5 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1077#L18-2 [2024-11-23 02:04:18,283 INFO L747 eck$LassoCheckResult]: Loop: 1077#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1076#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1077#L18-2 [2024-11-23 02:04:18,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash 296252863, now seen corresponding path program 1 times [2024-11-23 02:04:18,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:18,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194082994] [2024-11-23 02:04:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:18,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:04:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194082994] [2024-11-23 02:04:18,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194082994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:04:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266668447] [2024-11-23 02:04:18,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:18,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:04:18,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,317 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-23 02:04:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:04:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266668447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:04:18,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:04:18,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-23 02:04:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592380755] [2024-11-23 02:04:18,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:04:18,388 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-23 02:04:18,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 3 times [2024-11-23 02:04:18,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:18,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057798456] [2024-11-23 02:04:18,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:04:18,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:18,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 02:04:18,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:04:18,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:18,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:18,413 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:18,413 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:18,413 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:18,413 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:18,413 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:18,413 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,413 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:18,413 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:18,413 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-23 02:04:18,413 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:18,413 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:18,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,452 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:18,452 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:18,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,454 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-23 02:04:18,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:18,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-23 02:04:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,475 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-23 02:04:18,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:18,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:18,496 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:18,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-23 02:04:18,500 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:18,500 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:18,500 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:18,500 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:18,500 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:18,500 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,500 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:18,501 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:18,501 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-23 02:04:18,501 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:18,501 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:18,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:18,539 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:18,539 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:18,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,541 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-23 02:04:18,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:18,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:18,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:18,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:18,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:18,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:18,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:18,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:18,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:18,556 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:04:18,556 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:04:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:18,557 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:18,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-23 02:04:18,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:18,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:18,559 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:18,559 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-23 02:04:18,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:18,565 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:18,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,596 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,598 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 02:04:18,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,612 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-11-23 02:04:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-23 02:04:18,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-23 02:04:18,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,613 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:04:18,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,641 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,643 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 02:04:18,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 92 transitions. Complement of second has 5 states. [2024-11-23 02:04:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-23 02:04:18,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-23 02:04:18,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,653 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:04:18,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:18,685 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:04:18,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:18,687 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-23 02:04:18,687 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,704 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 57 states and 70 transitions. Complement of second has 4 states. [2024-11-23 02:04:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2024-11-23 02:04:18,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-23 02:04:18,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-23 02:04:18,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-23 02:04:18,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:18,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 70 transitions. [2024-11-23 02:04:18,706 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:04:18,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 02:04:18,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 02:04:18,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:04:18,706 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:04:18,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 02:04:18,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:04:18,706 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:04:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:04:18,706 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-23 02:04:18,706 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:04:18,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 02:04:18,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 02:04:18,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:04:18,707 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 02:04:18,707 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-23 02:04:18,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 02:04:18,707 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:04:18,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 02:04:18,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:04:18 BoogieIcfgContainer [2024-11-23 02:04:18,716 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:04:18,717 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:04:18,717 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:04:18,717 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:04:18,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:14" (3/4) ... [2024-11-23 02:04:18,719 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 02:04:18,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:04:18,720 INFO L158 Benchmark]: Toolchain (without parser) took 5103.94ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 98.0MB in the beginning and 116.4MB in the end (delta: -18.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-23 02:04:18,720 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 174.1MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:18,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.33ms. Allocated memory is still 174.1MB. Free memory was 97.7MB in the beginning and 139.4MB in the end (delta: -41.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-23 02:04:18,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.80ms. Allocated memory is still 174.1MB. Free memory was 139.4MB in the beginning and 138.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:18,721 INFO L158 Benchmark]: Boogie Preprocessor took 21.11ms. Allocated memory is still 174.1MB. Free memory was 138.1MB in the beginning and 136.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:04:18,721 INFO L158 Benchmark]: RCFGBuilder took 213.54ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 126.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-23 02:04:18,721 INFO L158 Benchmark]: BuchiAutomizer took 4651.06ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 125.9MB in the beginning and 116.4MB in the end (delta: 9.6MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2024-11-23 02:04:18,721 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 209.7MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:18,723 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 174.1MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.33ms. Allocated memory is still 174.1MB. Free memory was 97.7MB in the beginning and 139.4MB in the end (delta: -41.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.80ms. Allocated memory is still 174.1MB. Free memory was 139.4MB in the beginning and 138.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.11ms. Allocated memory is still 174.1MB. Free memory was 138.1MB in the beginning and 136.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 213.54ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 126.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4651.06ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 125.9MB in the beginning and 116.4MB in the end (delta: 9.6MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 209.7MB. Free memory is still 116.4MB. 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 4.5s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. 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, 0.2s 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: 173ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 02:04:18,735 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 [2024-11-23 02:04:18,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-23 02:04:19,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-23 02:04:19,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:19,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:19,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE