./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 0724aefed4fd629206cc51e19e964e04af92729823366947a0cfe01fe4e4d102 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:05:08,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:05:08,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:05:08,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:05:08,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:05:08,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:05:08,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:05:08,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:05:08,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:05:08,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:05:08,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:05:08,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:05:08,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:05:08,484 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:05:08,485 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:05:08,485 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:05:08,486 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:05:08,486 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:05:08,486 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:05:08,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:05:08,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:05:08,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:05:08,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:05:08,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:05:08,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:05:08,489 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:05:08,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:05:08,489 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:05:08,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:05:08,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:05:08,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:05:08,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:05:08,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:05:08,490 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:05:08,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0724aefed4fd629206cc51e19e964e04af92729823366947a0cfe01fe4e4d102 [2024-11-09 16:05:08,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:05:08,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:05:08,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:05:08,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:05:08,729 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:05:08,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_4-1.c [2024-11-09 16:05:10,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:05:10,162 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:05:10,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_4-1.c [2024-11-09 16:05:10,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdb34456/ecd7741ba9384761981dd4106b8e378e/FLAG602579532 [2024-11-09 16:05:10,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdb34456/ecd7741ba9384761981dd4106b8e378e [2024-11-09 16:05:10,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:05:10,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:05:10,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:05:10,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:05:10,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:05:10,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645f336a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10, skipping insertion in model container [2024-11-09 16:05:10,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:05:10,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:05:10,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:05:10,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:05:10,801 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:05:10,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10 WrapperNode [2024-11-09 16:05:10,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:05:10,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:05:10,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:05:10,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:05:10,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,833 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-09 16:05:10,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:05:10,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:05:10,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:05:10,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:05:10,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,858 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 16:05:10,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:05:10,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:05:10,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:05:10,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:05:10,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (1/1) ... [2024-11-09 16:05:10,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:10,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:10,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 16:05:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:05:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:05:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-09 16:05:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-09 16:05:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-09 16:05:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-09 16:05:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:05:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:05:10,998 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:05:11,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:05:11,114 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 16:05:11,115 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:05:11,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:05:11,130 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 16:05:11,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:05:11 BoogieIcfgContainer [2024-11-09 16:05:11,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:05:11,133 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:05:11,133 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:05:11,136 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:05:11,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:05:11,138 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:05:10" (1/3) ... [2024-11-09 16:05:11,138 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92e3799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:05:11, skipping insertion in model container [2024-11-09 16:05:11,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:05:11,139 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:05:10" (2/3) ... [2024-11-09 16:05:11,139 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92e3799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:05:11, skipping insertion in model container [2024-11-09 16:05:11,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:05:11,140 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:05:11" (3/3) ... [2024-11-09 16:05:11,142 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_4-1.c [2024-11-09 16:05:11,193 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:05:11,194 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:05:11,194 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:05:11,194 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:05:11,195 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:05:11,195 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:05:11,195 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:05:11,195 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:05:11,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 16:05:11,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:11,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:11,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:11,225 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 16:05:11,225 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:11,225 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:05:11,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 16:05:11,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:11,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:11,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:11,228 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 16:05:11,228 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:11,236 INFO L745 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 13#L39true call main_#t~ret8#1 := fibo1(main_~x~0#1);< 18#$Ultimate##0true [2024-11-09 16:05:11,237 INFO L747 eck$LassoCheckResult]: Loop: 18#$Ultimate##0true ~n := #in~n; 7#L10true assume !(~n < 1); 6#L12true assume !(1 == ~n); 8#L15true call #t~ret4 := fibo2(~n - 1);< 15#$Ultimate##0true ~n := #in~n; 10#L20true assume !(~n < 1); 14#L22true assume !(1 == ~n); 21#L25true call #t~ret6 := fibo1(~n - 1);< 18#$Ultimate##0true [2024-11-09 16:05:11,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-11-09 16:05:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050480079] [2024-11-09 16:05:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:11,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:11,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:11,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-11-09 16:05:11,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:11,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805161957] [2024-11-09 16:05:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:11,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:11,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:11,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-11-09 16:05:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132749475] [2024-11-09 16:05:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:11,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:11,628 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:11,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:11,629 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:11,629 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:11,629 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 16:05:11,629 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,629 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:11,629 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:11,629 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration1_Loop [2024-11-09 16:05:11,629 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:11,629 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:11,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:11,728 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:11,729 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 16:05:11,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-09 16:05:11,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,751 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,752 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-09 16:05:11,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-09 16:05:11,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,783 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,783 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:11,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-09 16:05:11,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,816 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,817 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,828 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 [2024-11-09 16:05:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-09 16:05:11,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,844 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,844 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-09 16:05:11,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-09 16:05:11,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,873 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,873 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-09 16:05:11,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,887 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-09 16:05:11,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,907 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,908 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,920 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 [2024-11-09 16:05:11,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-09 16:05:11,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,940 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:11,940 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:11,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:11,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-09 16:05:11,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:11,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:11,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-09 16:05:11,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:11,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:11,977 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:11,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-09 16:05:11,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 16:05:11,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:12,030 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 16:05:12,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:12,035 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:12,035 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:12,035 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:12,035 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:12,035 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 16:05:12,035 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,035 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:12,035 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:12,035 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration1_Loop [2024-11-09 16:05:12,035 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:12,035 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:12,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:12,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:12,112 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 16:05:12,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,115 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-09 16:05:12,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,131 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:12,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:12,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,144 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-09 16:05:12,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,158 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:12,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:12,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,171 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-09 16:05:12,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,183 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:12,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:12,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,195 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-09 16:05:12,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,208 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:12,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-09 16:05:12,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,220 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-09 16:05:12,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,234 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:12,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-09 16:05:12,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,247 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-09 16:05:12,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:12,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:12,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:12,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:12,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:12,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:12,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:12,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:12,262 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 16:05:12,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 16:05:12,265 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 16:05:12,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:12,286 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:12,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-09 16:05:12,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 16:05:12,291 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 16:05:12,291 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 16:05:12,292 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-09 16:05:12,305 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 [2024-11-09 16:05:12,308 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 16:05:12,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 16:05:12,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 16:05:12,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:12,502 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-11-09 16:05:12,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:05:12,657 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 107 transitions. Complement of second has 28 states. [2024-11-09 16:05:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:05:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-09 16:05:12,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-09 16:05:12,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:12,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-09 16:05:12,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:12,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-09 16:05:12,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:12,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-11-09 16:05:12,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:12,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-11-09 16:05:12,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-09 16:05:12,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-09 16:05:12,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-09 16:05:12,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:12,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-09 16:05:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-09 16:05:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-09 16:05:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 16:05:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-09 16:05:12,708 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-09 16:05:12,708 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-09 16:05:12,708 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:05:12,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-11-09 16:05:12,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:12,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:12,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:12,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:12,711 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:12,711 INFO L745 eck$LassoCheckResult]: Stem: 232#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 214#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 213#$Ultimate##0 ~n := #in~n; 215#L10 assume !(~n < 1); 225#L12 assume !(1 == ~n); 208#L15 call #t~ret4 := fibo2(~n - 1);< 230#$Ultimate##0 ~n := #in~n; 235#L20 assume !(~n < 1); 236#L22 assume !(1 == ~n); 200#L25 call #t~ret6 := fibo1(~n - 1);< 216#$Ultimate##0 ~n := #in~n; 217#L10 assume ~n < 1;#res := 0; 205#fibo1FINAL assume true; 206#fibo1EXIT >#48#return; 207#L25-1 [2024-11-09 16:05:12,711 INFO L747 eck$LassoCheckResult]: Loop: 207#L25-1 call #t~ret7 := fibo1(~n - 2);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume !(~n < 1); 238#L12 assume !(1 == ~n); 210#L15 call #t~ret4 := fibo2(~n - 1);< 241#$Ultimate##0 ~n := #in~n; 240#L20 assume !(~n < 1); 239#L22 assume !(1 == ~n); 220#L25 call #t~ret6 := fibo1(~n - 1);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume ~n < 1;#res := 0; 233#fibo1FINAL assume true; 234#fibo1EXIT >#48#return; 207#L25-1 [2024-11-09 16:05:12,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:12,711 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-11-09 16:05:12,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:12,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429286675] [2024-11-09 16:05:12,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:12,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 16:05:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 16:05:12,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:12,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429286675] [2024-11-09 16:05:12,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429286675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:05:12,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:05:12,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:05:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815968440] [2024-11-09 16:05:12,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:05:12,839 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:12,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-11-09 16:05:12,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114134001] [2024-11-09 16:05:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 16:05:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:12,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-09 16:05:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 16:05:12,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:12,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114134001] [2024-11-09 16:05:12,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114134001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:05:12,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:05:12,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:05:12,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839959143] [2024-11-09 16:05:12,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:05:12,937 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:05:12,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:05:12,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:05:12,941 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 16:05:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:13,005 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-09 16:05:13,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-11-09 16:05:13,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:13,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-11-09 16:05:13,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-09 16:05:13,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-09 16:05:13,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-11-09 16:05:13,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:13,013 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-09 16:05:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-11-09 16:05:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-09 16:05:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 12 states have call successors, (12), 8 states have call predecessors, (12), 9 states have return successors, (18), 7 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-09 16:05:13,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-11-09 16:05:13,023 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-09 16:05:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 16:05:13,024 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-09 16:05:13,024 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:05:13,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-11-09 16:05:13,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-09 16:05:13,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:13,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:13,028 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:13,028 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:13,028 INFO L745 eck$LassoCheckResult]: Stem: 370#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 352#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 353#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 354#$Ultimate##0 ~n := #in~n; 355#L10 assume !(~n < 1); 390#L12 assume !(1 == ~n); 346#L15 call #t~ret4 := fibo2(~n - 1);< 369#$Ultimate##0 ~n := #in~n; 376#L20 assume !(~n < 1); 377#L22 assume !(1 == ~n); 337#L25 call #t~ret6 := fibo1(~n - 1);< 356#$Ultimate##0 ~n := #in~n; 357#L10 assume !(~n < 1); 366#L12 assume 1 == ~n;#res := 1; 378#fibo1FINAL assume true; 374#fibo1EXIT >#48#return; 343#L25-1 [2024-11-09 16:05:13,029 INFO L747 eck$LassoCheckResult]: Loop: 343#L25-1 call #t~ret7 := fibo1(~n - 2);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume !(1 == ~n); 348#L15 call #t~ret4 := fibo2(~n - 1);< 383#$Ultimate##0 ~n := #in~n; 382#L20 assume !(~n < 1); 380#L22 assume !(1 == ~n); 344#L25 call #t~ret6 := fibo1(~n - 1);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume 1 == ~n;#res := 1; 361#fibo1FINAL assume true; 373#fibo1EXIT >#48#return; 343#L25-1 [2024-11-09 16:05:13,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-11-09 16:05:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:13,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284290474] [2024-11-09 16:05:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:13,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 16:05:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:13,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:13,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284290474] [2024-11-09 16:05:13,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284290474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:13,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761476999] [2024-11-09 16:05:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:13,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:13,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,167 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 16:05:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:13,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 16:05:13,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:13,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:13,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:13,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761476999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:13,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:13,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2024-11-09 16:05:13,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007982439] [2024-11-09 16:05:13,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:13,341 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:13,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2024-11-09 16:05:13,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:13,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241948590] [2024-11-09 16:05:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:13,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:13,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:13,523 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:13,523 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:13,523 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:13,523 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:13,523 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 16:05:13,523 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,523 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:13,524 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:13,524 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration3_Loop [2024-11-09 16:05:13,524 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:13,524 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:13,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,589 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:13,589 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 16:05:13,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,591 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-09 16:05:13,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,610 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:13,610 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:13,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,622 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-09 16:05:13,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,638 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:13,638 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:13,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,653 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-09 16:05:13,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,670 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:13,670 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:13,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,683 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-09 16:05:13,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,698 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:13,698 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:13,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,713 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-09 16:05:13,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,726 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:13,726 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:13,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,739 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-09 16:05:13,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:13,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-09 16:05:13,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,765 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-09 16:05:13,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 16:05:13,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:13,780 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 16:05:13,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,791 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:13,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:13,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:13,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:13,791 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 16:05:13,791 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,791 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:13,791 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:13,792 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration3_Loop [2024-11-09 16:05:13,792 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:13,792 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:13,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:13,856 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:13,857 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 16:05:13,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,859 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-09 16:05:13,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:13,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:13,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:13,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:13,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:13,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:13,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:13,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:13,877 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:13,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:13,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,889 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-09 16:05:13,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:13,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:13,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:13,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:13,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:13,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:13,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:13,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:13,902 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:13,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-09 16:05:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,914 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-09 16:05:13,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:13,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:13,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:13,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:13,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:13,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:13,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:13,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:13,927 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:13,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-09 16:05:13,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,952 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) [2024-11-09 16:05:13,953 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 [2024-11-09 16:05:13,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:13,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:13,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:13,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:13,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:13,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:13,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:13,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:13,965 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:13,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-09 16:05:13,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,976 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:13,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-09 16:05:13,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:13,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:13,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:13,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:13,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:13,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:13,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:13,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:13,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 16:05:13,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 16:05:13,991 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 16:05:13,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:13,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:13,993 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) [2024-11-09 16:05:13,993 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 [2024-11-09 16:05:13,994 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 16:05:13,994 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 16:05:13,994 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 16:05:13,994 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-09 16:05:14,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-09 16:05:14,004 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 16:05:14,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 16:05:14,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 16:05:14,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:14,237 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-09 16:05:14,238 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21 Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 16:05:14,617 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 [2024-11-09 16:05:14,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 206 states and 282 transitions. Complement of second has 48 states. [2024-11-09 16:05:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 16:05:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 79 transitions. [2024-11-09 16:05:14,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 14 letters. [2024-11-09 16:05:14,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:14,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 30 letters. Loop has 14 letters. [2024-11-09 16:05:14,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:14,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 28 letters. [2024-11-09 16:05:14,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:14,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 282 transitions. [2024-11-09 16:05:14,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-09 16:05:14,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 182 states and 254 transitions. [2024-11-09 16:05:14,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112 [2024-11-09 16:05:14,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-11-09 16:05:14,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2024-11-09 16:05:14,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:14,669 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2024-11-09 16:05:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2024-11-09 16:05:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 154. [2024-11-09 16:05:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.28125) internal successors, (123), 104 states have internal predecessors, (123), 35 states have call successors, (36), 19 states have call predecessors, (36), 23 states have return successors, (52), 30 states have call predecessors, (52), 33 states have call successors, (52) [2024-11-09 16:05:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2024-11-09 16:05:14,684 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2024-11-09 16:05:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:14,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 16:05:14,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 16:05:14,685 INFO L87 Difference]: Start difference. First operand 154 states and 211 transitions. Second operand has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 16:05:14,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:14,799 INFO L93 Difference]: Finished difference Result 183 states and 249 transitions. [2024-11-09 16:05:14,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 249 transitions. [2024-11-09 16:05:14,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-09 16:05:14,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 180 states and 245 transitions. [2024-11-09 16:05:14,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2024-11-09 16:05:14,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2024-11-09 16:05:14,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 245 transitions. [2024-11-09 16:05:14,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:14,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 180 states and 245 transitions. [2024-11-09 16:05:14,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 245 transitions. [2024-11-09 16:05:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 165. [2024-11-09 16:05:14,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 111 states have internal predecessors, (129), 38 states have call successors, (40), 20 states have call predecessors, (40), 25 states have return successors, (58), 33 states have call predecessors, (58), 36 states have call successors, (58) [2024-11-09 16:05:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2024-11-09 16:05:14,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-11-09 16:05:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 16:05:14,816 INFO L425 stractBuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-11-09 16:05:14,816 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 16:05:14,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2024-11-09 16:05:14,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-09 16:05:14,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:14,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:14,819 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:14,819 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:14,819 INFO L745 eck$LassoCheckResult]: Stem: 1277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 1252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 1253#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 1282#$Ultimate##0 ~n := #in~n; 1272#L10 assume !(~n < 1); 1269#L12 assume !(1 == ~n); 1243#L15 call #t~ret4 := fibo2(~n - 1);< 1275#$Ultimate##0 ~n := #in~n; 1376#L20 assume !(~n < 1); 1375#L22 assume !(1 == ~n); 1256#L25 call #t~ret6 := fibo1(~n - 1);< 1255#$Ultimate##0 ~n := #in~n; 1257#L10 assume !(~n < 1); 1318#L12 assume !(1 == ~n); 1319#L15 call #t~ret4 := fibo2(~n - 1);< 1327#$Ultimate##0 ~n := #in~n; 1331#L20 assume ~n < 1;#res := 0; 1330#fibo2FINAL assume true; 1326#fibo2EXIT >#52#return; 1323#L15-1 call #t~ret5 := fibo2(~n - 2);< 1324#$Ultimate##0 ~n := #in~n; 1328#L20 assume ~n < 1;#res := 0; 1325#fibo2FINAL assume true; 1322#fibo2EXIT >#54#return; 1320#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1321#fibo1FINAL assume true; 1378#fibo1EXIT >#48#return; 1273#L25-1 call #t~ret7 := fibo1(~n - 2);< 1310#$Ultimate##0 ~n := #in~n; 1382#L10 assume ~n < 1;#res := 0; 1381#fibo1FINAL assume true; 1372#fibo1EXIT >#50#return; 1259#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 1260#fibo2FINAL assume true; 1270#fibo2EXIT >#52#return; 1220#L15-1 call #t~ret5 := fibo2(~n - 2);< 1334#$Ultimate##0 [2024-11-09 16:05:14,819 INFO L747 eck$LassoCheckResult]: Loop: 1334#$Ultimate##0 ~n := #in~n; 1333#L20 assume !(~n < 1); 1219#L22 assume !(1 == ~n); 1224#L25 call #t~ret6 := fibo1(~n - 1);< 1244#$Ultimate##0 ~n := #in~n; 1254#L10 assume !(~n < 1); 1267#L12 assume !(1 == ~n); 1222#L15 call #t~ret4 := fibo2(~n - 1);< 1334#$Ultimate##0 [2024-11-09 16:05:14,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:14,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1873386980, now seen corresponding path program 1 times [2024-11-09 16:05:14,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:14,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097898961] [2024-11-09 16:05:14,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:14,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 16:05:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 16:05:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 16:05:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 16:05:14,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:14,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097898961] [2024-11-09 16:05:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097898961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:14,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543767125] [2024-11-09 16:05:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:14,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:14,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:14,934 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:14,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 16:05:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:14,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 16:05:14,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 16:05:15,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 16:05:15,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543767125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:15,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:15,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 16 [2024-11-09 16:05:15,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811557576] [2024-11-09 16:05:15,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:15,298 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:15,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 2 times [2024-11-09 16:05:15,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:15,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936601733] [2024-11-09 16:05:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:15,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:15,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:15,386 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:15,386 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:15,386 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:15,386 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:15,386 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 16:05:15,386 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,386 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:15,386 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:15,386 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration4_Loop [2024-11-09 16:05:15,387 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:15,387 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:15,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,429 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:15,429 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 16:05:15,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,431 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) [2024-11-09 16:05:15,432 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 [2024-11-09 16:05:15,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,445 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,445 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,456 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 [2024-11-09 16:05:15,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,459 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) [2024-11-09 16:05:15,460 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 [2024-11-09 16:05:15,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,472 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,472 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,483 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 [2024-11-09 16:05:15,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,485 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) [2024-11-09 16:05:15,486 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 [2024-11-09 16:05:15,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,499 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,499 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,510 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 [2024-11-09 16:05:15,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,512 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) [2024-11-09 16:05:15,513 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 [2024-11-09 16:05:15,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,525 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,526 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,539 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 [2024-11-09 16:05:15,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,541 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) [2024-11-09 16:05:15,543 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 [2024-11-09 16:05:15,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,556 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,557 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,567 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 [2024-11-09 16:05:15,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,569 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) [2024-11-09 16:05:15,569 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 [2024-11-09 16:05:15,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,581 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:15,582 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:15,592 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 [2024-11-09 16:05:15,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,594 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-09 16:05:15,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:15,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-09 16:05:15,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,618 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) [2024-11-09 16:05:15,619 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 [2024-11-09 16:05:15,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 16:05:15,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:15,647 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 16:05:15,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:15,652 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:15,652 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:15,652 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:15,652 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:15,652 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 16:05:15,652 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,653 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:15,653 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:15,653 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration4_Loop [2024-11-09 16:05:15,653 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:15,653 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:15,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:15,714 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:15,714 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 16:05:15,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,716 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) [2024-11-09 16:05:15,717 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 [2024-11-09 16:05:15,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,730 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:15,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,743 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) [2024-11-09 16:05:15,744 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 [2024-11-09 16:05:15,745 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 [2024-11-09 16:05:15,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,757 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,767 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 [2024-11-09 16:05:15,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,768 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) [2024-11-09 16:05:15,769 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 [2024-11-09 16:05:15,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,781 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-09 16:05:15,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,793 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-09 16:05:15,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,807 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:15,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,819 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-09 16:05:15,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,833 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:15,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,844 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-09 16:05:15,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,857 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:15,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-09 16:05:15,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,871 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-09 16:05:15,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:15,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:15,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:15,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:15,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:15,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:15,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:15,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:15,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 16:05:15,887 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 16:05:15,887 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 16:05:15,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:15,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:15,888 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:15,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-09 16:05:15,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 16:05:15,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 16:05:15,900 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 16:05:15,900 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-09 16:05:15,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:15,911 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 16:05:15,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:15,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:15,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:16,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 16:05:16,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:16,239 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-09 16:05:16,240 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:16,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-11-09 16:05:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:16,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-11-09 16:05:16,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-09 16:05:16,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:16,390 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 16:05:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:16,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:16,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:16,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 16:05:16,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:16,729 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-09 16:05:16,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:16,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-09 16:05:16,879 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-11-09 16:05:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-11-09 16:05:16,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-09 16:05:16,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:16,881 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 16:05:16,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:16,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:16,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 16:05:17,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:17,182 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-09 16:05:17,183 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:17,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 538 states and 752 transitions. Complement of second has 29 states. [2024-11-09 16:05:17,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 16:05:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-11-09 16:05:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-09 16:05:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 44 letters. Loop has 8 letters. [2024-11-09 16:05:17,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:17,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 16 letters. [2024-11-09 16:05:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:17,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 538 states and 752 transitions. [2024-11-09 16:05:17,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2024-11-09 16:05:17,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 538 states to 437 states and 632 transitions. [2024-11-09 16:05:17,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2024-11-09 16:05:17,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2024-11-09 16:05:17,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 437 states and 632 transitions. [2024-11-09 16:05:17,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:17,335 INFO L218 hiAutomatonCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-11-09 16:05:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states and 632 transitions. [2024-11-09 16:05:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 366. [2024-11-09 16:05:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 244 states have (on average 1.2868852459016393) internal successors, (314), 265 states have internal predecessors, (314), 71 states have call successors, (74), 55 states have call predecessors, (74), 51 states have return successors, (118), 45 states have call predecessors, (118), 69 states have call successors, (118) [2024-11-09 16:05:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 506 transitions. [2024-11-09 16:05:17,356 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 506 transitions. [2024-11-09 16:05:17,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 16:05:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-09 16:05:17,357 INFO L87 Difference]: Start difference. First operand 366 states and 506 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 11 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (12), 3 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 16:05:17,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:17,573 INFO L93 Difference]: Finished difference Result 437 states and 627 transitions. [2024-11-09 16:05:17,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 437 states and 627 transitions. [2024-11-09 16:05:17,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-09 16:05:17,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 437 states to 398 states and 583 transitions. [2024-11-09 16:05:17,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2024-11-09 16:05:17,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2024-11-09 16:05:17,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 583 transitions. [2024-11-09 16:05:17,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:17,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 398 states and 583 transitions. [2024-11-09 16:05:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 583 transitions. [2024-11-09 16:05:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 361. [2024-11-09 16:05:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 234 states have (on average 1.2393162393162394) internal successors, (290), 263 states have internal predecessors, (290), 74 states have call successors, (77), 50 states have call predecessors, (77), 53 states have return successors, (138), 47 states have call predecessors, (138), 72 states have call successors, (138) [2024-11-09 16:05:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 505 transitions. [2024-11-09 16:05:17,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-11-09 16:05:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 16:05:17,615 INFO L425 stractBuchiCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-11-09 16:05:17,615 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 16:05:17,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 505 transitions. [2024-11-09 16:05:17,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-09 16:05:17,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:17,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:17,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:17,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 16:05:17,621 INFO L745 eck$LassoCheckResult]: Stem: 4958#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 4917#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 4918#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 4960#$Ultimate##0 ~n := #in~n; 5020#L10 assume !(~n < 1); 5019#L12 assume !(1 == ~n); 5007#L15 call #t~ret4 := fibo2(~n - 1);< 5017#$Ultimate##0 ~n := #in~n; 5016#L20 assume !(~n < 1); 5013#L22 assume !(1 == ~n); 4927#L25 call #t~ret6 := fibo1(~n - 1);< 5008#$Ultimate##0 ~n := #in~n; 5014#L10 assume !(~n < 1); 5100#L12 assume !(1 == ~n); 5088#L15 call #t~ret4 := fibo2(~n - 1);< 5113#$Ultimate##0 ~n := #in~n; 5116#L20 assume !(~n < 1); 5115#L22 assume 1 == ~n;#res := 1; 5114#fibo2FINAL assume true; 5112#fibo2EXIT >#52#return; 4926#L15-1 call #t~ret5 := fibo2(~n - 2);< 4930#$Ultimate##0 ~n := #in~n; 5107#L20 assume ~n < 1;#res := 0; 5104#fibo2FINAL assume true; 5101#fibo2EXIT >#54#return; 5099#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5097#fibo1FINAL assume true; 5095#fibo1EXIT >#48#return; 5080#L25-1 call #t~ret7 := fibo1(~n - 2);< 5092#$Ultimate##0 ~n := #in~n; 5178#L10 assume ~n < 1;#res := 0; 5174#fibo1FINAL assume true; 5131#fibo1EXIT >#50#return; 5130#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5129#fibo2FINAL assume true; 5128#fibo2EXIT >#52#return; 4889#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-11-09 16:05:17,621 INFO L747 eck$LassoCheckResult]: Loop: 5082#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4898#L20 assume !(~n < 1); 5208#L22 assume 1 == ~n;#res := 1; 5150#fibo2FINAL assume true; 5148#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#48#return; 5134#L25-1 call #t~ret7 := fibo1(~n - 2);< 5140#$Ultimate##0 ~n := #in~n; 5159#L10 assume !(~n < 1); 5158#L12 assume !(1 == ~n); 5121#L15 call #t~ret4 := fibo2(~n - 1);< 5149#$Ultimate##0 ~n := #in~n; 5162#L20 assume !(~n < 1); 5160#L22 assume 1 == ~n;#res := 1; 5071#fibo2FINAL assume true; 5147#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#50#return; 5137#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5173#fibo2FINAL assume true; 5120#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-11-09 16:05:17,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1302122831, now seen corresponding path program 1 times [2024-11-09 16:05:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920504683] [2024-11-09 16:05:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 16:05:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 16:05:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 16:05:17,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920504683] [2024-11-09 16:05:17,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920504683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82273868] [2024-11-09 16:05:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:17,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:17,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:17,822 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:17,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-09 16:05:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:17,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 16:05:17,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 16:05:17,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 16:05:18,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82273868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:18,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:18,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 16 [2024-11-09 16:05:18,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11613476] [2024-11-09 16:05:18,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:18,072 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:18,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:18,073 INFO L85 PathProgramCache]: Analyzing trace with hash 592500779, now seen corresponding path program 1 times [2024-11-09 16:05:18,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:18,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209220778] [2024-11-09 16:05:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:18,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 16:05:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 16:05:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 16:05:18,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209220778] [2024-11-09 16:05:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209220778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680978615] [2024-11-09 16:05:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:18,284 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:18,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-09 16:05:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 16:05:18,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 16:05:18,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 16:05:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680978615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:18,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:18,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-09 16:05:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387659893] [2024-11-09 16:05:18,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:18,680 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:05:18,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 16:05:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-09 16:05:18,681 INFO L87 Difference]: Start difference. First operand 361 states and 505 transitions. cyclomatic complexity: 151 Second operand has 16 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 8 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-09 16:05:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:18,801 INFO L93 Difference]: Finished difference Result 404 states and 595 transitions. [2024-11-09 16:05:18,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 595 transitions. [2024-11-09 16:05:18,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-09 16:05:18,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 404 states and 595 transitions. [2024-11-09 16:05:18,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2024-11-09 16:05:18,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2024-11-09 16:05:18,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 404 states and 595 transitions. [2024-11-09 16:05:18,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:18,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 404 states and 595 transitions. [2024-11-09 16:05:18,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 595 transitions. [2024-11-09 16:05:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 369. [2024-11-09 16:05:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 238 states have (on average 1.2352941176470589) internal successors, (294), 269 states have internal predecessors, (294), 75 states have call successors, (78), 50 states have call predecessors, (78), 56 states have return successors, (143), 49 states have call predecessors, (143), 73 states have call successors, (143) [2024-11-09 16:05:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 515 transitions. [2024-11-09 16:05:18,821 INFO L240 hiAutomatonCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-11-09 16:05:18,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 16:05:18,822 INFO L425 stractBuchiCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-11-09 16:05:18,822 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-09 16:05:18,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 515 transitions. [2024-11-09 16:05:18,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-09 16:05:18,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:18,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:18,824 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:18,824 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:18,824 INFO L745 eck$LassoCheckResult]: Stem: 6437#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 6399#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 6400#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 6444#$Ultimate##0 ~n := #in~n; 6492#L10 assume !(~n < 1); 6491#L12 assume !(1 == ~n); 6476#L15 call #t~ret4 := fibo2(~n - 1);< 6489#$Ultimate##0 ~n := #in~n; 6488#L20 assume !(~n < 1); 6480#L22 assume !(1 == ~n); 6403#L25 call #t~ret6 := fibo1(~n - 1);< 6477#$Ultimate##0 ~n := #in~n; 6486#L10 assume !(~n < 1); 6582#L12 assume !(1 == ~n); 6553#L15 call #t~ret4 := fibo2(~n - 1);< 6584#$Ultimate##0 ~n := #in~n; 6590#L20 assume !(~n < 1); 6588#L22 assume 1 == ~n;#res := 1; 6586#fibo2FINAL assume true; 6583#fibo2EXIT >#52#return; 6401#L15-1 call #t~ret5 := fibo2(~n - 2);< 6405#$Ultimate##0 ~n := #in~n; 6592#L20 assume ~n < 1;#res := 0; 6591#fibo2FINAL assume true; 6589#fibo2EXIT >#54#return; 6587#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6585#fibo1FINAL assume true; 6563#fibo1EXIT >#48#return; 6537#L25-1 call #t~ret7 := fibo1(~n - 2);< 6560#$Ultimate##0 ~n := #in~n; 6633#L10 assume !(~n < 1); 6632#L12 assume 1 == ~n;#res := 1; 6631#fibo1FINAL assume true; 6625#fibo1EXIT >#50#return; 6616#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 6623#fibo2FINAL assume true; 6622#fibo2EXIT >#52#return; 6432#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-11-09 16:05:18,824 INFO L747 eck$LassoCheckResult]: Loop: 6559#$Ultimate##0 ~n := #in~n; 6428#L20 assume !(~n < 1); 6434#L22 assume !(1 == ~n); 6567#L25 call #t~ret6 := fibo1(~n - 1);< 6569#$Ultimate##0 ~n := #in~n; 6580#L10 assume !(~n < 1); 6576#L12 assume !(1 == ~n); 6430#L15 call #t~ret4 := fibo2(~n - 1);< 6612#$Ultimate##0 ~n := #in~n; 6630#L20 assume !(~n < 1); 6655#L22 assume 1 == ~n;#res := 1; 6648#fibo2FINAL assume true; 6640#fibo2EXIT >#52#return; 6431#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-11-09 16:05:18,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash -264197307, now seen corresponding path program 1 times [2024-11-09 16:05:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287353747] [2024-11-09 16:05:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:18,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:18,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:18,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash -93894958, now seen corresponding path program 1 times [2024-11-09 16:05:18,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:18,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995406068] [2024-11-09 16:05:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:18,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:18,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:18,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash -387388650, now seen corresponding path program 2 times [2024-11-09 16:05:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:18,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043948651] [2024-11-09 16:05:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 16:05:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 16:05:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 16:05:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 16:05:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043948651] [2024-11-09 16:05:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043948651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419561389] [2024-11-09 16:05:18,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 16:05:18,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:18,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:18,973 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:18,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-09 16:05:19,022 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 16:05:19,022 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 16:05:19,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 16:05:19,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 16:05:19,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 16:05:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419561389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:19,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:19,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 13 [2024-11-09 16:05:19,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598307799] [2024-11-09 16:05:19,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:19,237 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:19,237 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:19,237 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:19,237 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:19,237 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 16:05:19,237 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,237 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:19,237 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:19,237 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration6_Loop [2024-11-09 16:05:19,237 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:19,237 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:19,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:19,279 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 16:05:19,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,281 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-09 16:05:19,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:19,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:19,293 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:19,293 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:19,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:19,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,305 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-09 16:05:19,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:19,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:19,316 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:19,317 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:19,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-09 16:05:19,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,329 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-09 16:05:19,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:19,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:19,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-09 16:05:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,352 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-09 16:05:19,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 16:05:19,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:19,364 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 16:05:19,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:19,374 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:19,374 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:19,374 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:19,374 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:19,375 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 16:05:19,375 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,375 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:19,375 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:19,375 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration6_Loop [2024-11-09 16:05:19,375 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:19,375 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:19,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:19,415 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:19,415 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 16:05:19,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,416 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-09 16:05:19,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:19,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:19,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:19,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:19,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:19,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:19,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:19,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:19,428 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:19,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-11-09 16:05:19,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,439 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-09 16:05:19,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:19,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:19,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:19,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:19,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:19,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:19,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:19,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:19,451 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:19,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:19,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,462 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-09 16:05:19,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:19,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:19,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:19,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:19,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:19,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:19,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:19,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:19,475 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 16:05:19,478 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 16:05:19,478 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 16:05:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:19,479 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:19,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-09 16:05:19,480 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 16:05:19,481 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 16:05:19,481 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 16:05:19,481 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-09 16:05:19,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:19,491 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 16:05:19,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:19,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:19,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:19,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 16:05:19,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:19,801 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-09 16:05:19,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:19,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-09 16:05:20,095 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-11-09 16:05:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-11-09 16:05:20,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-09 16:05:20,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:20,097 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 16:05:20,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:20,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:20,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:20,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 16:05:20,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:20,395 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-09 16:05:20,395 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:20,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-11-09 16:05:20,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-11-09 16:05:20,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-09 16:05:20,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:20,661 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 16:05:20,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:20,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 16:05:20,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:20,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 16:05:20,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:05:20,983 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-09 16:05:20,983 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:21,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1083 states and 1467 transitions. Complement of second has 37 states. [2024-11-09 16:05:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 16:05:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 59 transitions. [2024-11-09 16:05:21,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-09 16:05:21,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:21,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 52 letters. Loop has 14 letters. [2024-11-09 16:05:21,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:21,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 28 letters. [2024-11-09 16:05:21,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:21,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1083 states and 1467 transitions. [2024-11-09 16:05:21,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2024-11-09 16:05:21,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1083 states to 648 states and 953 transitions. [2024-11-09 16:05:21,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-11-09 16:05:21,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2024-11-09 16:05:21,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 648 states and 953 transitions. [2024-11-09 16:05:21,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:21,254 INFO L218 hiAutomatonCegarLoop]: Abstraction has 648 states and 953 transitions. [2024-11-09 16:05:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states and 953 transitions. [2024-11-09 16:05:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 507. [2024-11-09 16:05:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 325 states have (on average 1.2307692307692308) internal successors, (400), 356 states have internal predecessors, (400), 106 states have call successors, (109), 68 states have call predecessors, (109), 76 states have return successors, (188), 82 states have call predecessors, (188), 104 states have call successors, (188) [2024-11-09 16:05:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 697 transitions. [2024-11-09 16:05:21,268 INFO L240 hiAutomatonCegarLoop]: Abstraction has 507 states and 697 transitions. [2024-11-09 16:05:21,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 16:05:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-09 16:05:21,269 INFO L87 Difference]: Start difference. First operand 507 states and 697 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 16:05:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:21,406 INFO L93 Difference]: Finished difference Result 573 states and 792 transitions. [2024-11-09 16:05:21,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 573 states and 792 transitions. [2024-11-09 16:05:21,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-11-09 16:05:21,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 573 states to 535 states and 749 transitions. [2024-11-09 16:05:21,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-11-09 16:05:21,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2024-11-09 16:05:21,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 535 states and 749 transitions. [2024-11-09 16:05:21,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:21,415 INFO L218 hiAutomatonCegarLoop]: Abstraction has 535 states and 749 transitions. [2024-11-09 16:05:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states and 749 transitions. [2024-11-09 16:05:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 503. [2024-11-09 16:05:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 323 states have (on average 1.2321981424148607) internal successors, (398), 354 states have internal predecessors, (398), 105 states have call successors, (107), 68 states have call predecessors, (107), 75 states have return successors, (183), 80 states have call predecessors, (183), 101 states have call successors, (183) [2024-11-09 16:05:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 688 transitions. [2024-11-09 16:05:21,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-11-09 16:05:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 16:05:21,432 INFO L425 stractBuchiCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-11-09 16:05:21,432 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-09 16:05:21,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 688 transitions. [2024-11-09 16:05:21,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-11-09 16:05:21,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:21,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:21,438 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:21,438 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 16:05:21,438 INFO L745 eck$LassoCheckResult]: Stem: 12548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 12513#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 12514#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 12557#$Ultimate##0 ~n := #in~n; 12833#L10 assume !(~n < 1); 12831#L12 assume !(1 == ~n); 12635#L15 call #t~ret4 := fibo2(~n - 1);< 12825#$Ultimate##0 ~n := #in~n; 12822#L20 assume !(~n < 1); 12820#L22 assume !(1 == ~n); 12521#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12788#L12 assume !(1 == ~n); 12572#L15 call #t~ret4 := fibo2(~n - 1);< 12654#$Ultimate##0 ~n := #in~n; 12834#L20 assume !(~n < 1); 12645#L22 assume !(1 == ~n); 12523#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12788#L12 assume !(1 == ~n); 12572#L15 call #t~ret4 := fibo2(~n - 1);< 12654#$Ultimate##0 ~n := #in~n; 12834#L20 assume !(~n < 1); 12645#L22 assume 1 == ~n;#res := 1; 12646#fibo2FINAL assume true; 12688#fibo2EXIT >#52#return; 12578#L15-1 call #t~ret5 := fibo2(~n - 2);< 12657#$Ultimate##0 ~n := #in~n; 12680#L20 assume !(~n < 1); 12813#L22 assume !(1 == ~n); 12811#L25 call #t~ret6 := fibo1(~n - 1);< 12812#$Ultimate##0 ~n := #in~n; 12817#L10 assume !(~n < 1); 12815#L12 assume 1 == ~n;#res := 1; 12814#fibo1FINAL assume true; 12810#fibo1EXIT >#48#return; 12808#L25-1 call #t~ret7 := fibo1(~n - 2);< 12809#$Ultimate##0 ~n := #in~n; 12818#L10 assume ~n < 1;#res := 0; 12816#fibo1FINAL assume true; 12807#fibo1EXIT >#50#return; 12806#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12805#fibo2FINAL assume true; 12640#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12663#L10 assume !(~n < 1); 12660#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12652#$Ultimate##0 ~n := #in~n; 12695#L20 assume !(~n < 1); 12691#L22 assume 1 == ~n;#res := 1; 12658#fibo2FINAL assume true; 12649#fibo2EXIT >#52#return; 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12802#L20 assume ~n < 1;#res := 0; 12519#fibo2FINAL assume true; 12642#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12591#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12571#fibo2FINAL assume true; 12584#fibo2EXIT >#52#return; 12518#L15-1 [2024-11-09 16:05:21,439 INFO L747 eck$LassoCheckResult]: Loop: 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12757#L20 assume !(~n < 1); 12799#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12725#L10 assume !(~n < 1); 12706#L12 assume !(1 == ~n); 12581#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12757#L20 assume !(~n < 1); 12799#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12725#L10 assume !(~n < 1); 12706#L12 assume !(1 == ~n); 12581#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12755#L20 assume !(~n < 1); 12718#L22 assume 1 == ~n;#res := 1; 12716#fibo2FINAL assume true; 12714#fibo2EXIT >#52#return; 12574#L15-1 call #t~ret5 := fibo2(~n - 2);< 12643#$Ultimate##0 ~n := #in~n; 12803#L20 assume ~n < 1;#res := 0; 12948#fibo2FINAL assume true; 12701#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12663#L10 assume !(~n < 1); 12660#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12652#$Ultimate##0 ~n := #in~n; 12695#L20 assume !(~n < 1); 12691#L22 assume 1 == ~n;#res := 1; 12658#fibo2FINAL assume true; 12649#fibo2EXIT >#52#return; 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12802#L20 assume ~n < 1;#res := 0; 12519#fibo2FINAL assume true; 12642#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12591#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12571#fibo2FINAL assume true; 12584#fibo2EXIT >#52#return; 12518#L15-1 [2024-11-09 16:05:21,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2114414096, now seen corresponding path program 1 times [2024-11-09 16:05:21,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:21,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076293427] [2024-11-09 16:05:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:21,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 16:05:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 16:05:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 50 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-09 16:05:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076293427] [2024-11-09 16:05:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076293427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:21,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177528943] [2024-11-09 16:05:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:21,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:21,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:21,609 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:21,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-09 16:05:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 16:05:21,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 16:05:21,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:21,887 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 16:05:21,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177528943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:21,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:21,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-11-09 16:05:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765175694] [2024-11-09 16:05:21,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:21,888 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:21,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1108085027, now seen corresponding path program 2 times [2024-11-09 16:05:21,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:21,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530560713] [2024-11-09 16:05:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:21,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 16:05:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:21,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 16:05:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,013 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 16:05:22,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:22,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530560713] [2024-11-09 16:05:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530560713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:22,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275934022] [2024-11-09 16:05:22,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 16:05:22,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:22,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:22,015 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:22,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-09 16:05:22,051 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 16:05:22,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 16:05:22,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 16:05:22,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 16:05:22,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 16:05:22,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275934022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:22,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:22,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-09 16:05:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839911601] [2024-11-09 16:05:22,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:22,387 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:05:22,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:22,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 16:05:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-09 16:05:22,388 INFO L87 Difference]: Start difference. First operand 503 states and 688 transitions. cyclomatic complexity: 193 Second operand has 20 states, 17 states have (on average 2.823529411764706) internal successors, (48), 18 states have internal predecessors, (48), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-09 16:05:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:22,602 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2024-11-09 16:05:22,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 261 transitions. [2024-11-09 16:05:22,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-09 16:05:22,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 158 states and 197 transitions. [2024-11-09 16:05:22,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2024-11-09 16:05:22,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-11-09 16:05:22,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 197 transitions. [2024-11-09 16:05:22,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:22,605 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 197 transitions. [2024-11-09 16:05:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 197 transitions. [2024-11-09 16:05:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 150. [2024-11-09 16:05:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 105 states have internal predecessors, (115), 27 states have call successors, (27), 20 states have call predecessors, (27), 25 states have return successors, (46), 24 states have call predecessors, (46), 24 states have call successors, (46) [2024-11-09 16:05:22,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2024-11-09 16:05:22,608 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-09 16:05:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 16:05:22,609 INFO L425 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-09 16:05:22,609 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-09 16:05:22,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2024-11-09 16:05:22,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-11-09 16:05:22,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:05:22,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:05:22,610 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:22,610 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:05:22,610 INFO L745 eck$LassoCheckResult]: Stem: 14243#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 14217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 14212#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 14211#$Ultimate##0 ~n := #in~n; 14213#L10 assume !(~n < 1); 14234#L12 assume !(1 == ~n); 14220#L15 call #t~ret4 := fibo2(~n - 1);< 14239#$Ultimate##0 ~n := #in~n; 14296#L20 assume !(~n < 1); 14294#L22 assume !(1 == ~n); 14209#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14216#L10 assume !(~n < 1); 14303#L12 assume !(1 == ~n); 14189#L15 call #t~ret4 := fibo2(~n - 1);< 14194#$Ultimate##0 ~n := #in~n; 14195#L20 assume !(~n < 1); 14188#L22 assume !(1 == ~n); 14190#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14215#L10 assume !(~n < 1); 14298#L12 assume 1 == ~n;#res := 1; 14299#fibo1FINAL assume true; 14327#fibo1EXIT >#48#return; 14203#L25-1 call #t~ret7 := fibo1(~n - 2);< 14302#$Ultimate##0 ~n := #in~n; 14237#L10 assume ~n < 1;#res := 0; 14202#fibo1FINAL assume true; 14205#fibo1EXIT >#50#return; 14279#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14274#fibo2FINAL assume true; 14270#fibo2EXIT >#52#return; 14197#L15-1 [2024-11-09 16:05:22,610 INFO L747 eck$LassoCheckResult]: Loop: 14197#L15-1 call #t~ret5 := fibo2(~n - 2);< 14263#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14257#L20 assume !(~n < 1); 14251#L22 assume 1 == ~n;#res := 1; 14252#fibo2FINAL assume true; 14321#fibo2EXIT >#52#return; 14192#L15-1 call #t~ret5 := fibo2(~n - 2);< 14191#$Ultimate##0 ~n := #in~n; 14193#L20 assume ~n < 1;#res := 0; 14240#fibo2FINAL assume true; 14329#fibo2EXIT >#54#return; 14306#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 14304#fibo1FINAL assume true; 14286#fibo1EXIT >#48#return; 14283#L25-1 call #t~ret7 := fibo1(~n - 2);< 14285#$Ultimate##0 ~n := #in~n; 14305#L10 assume !(~n < 1); 14301#L12 assume 1 == ~n;#res := 1; 14276#fibo1FINAL assume true; 14287#fibo1EXIT >#50#return; 14288#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14300#fibo2FINAL assume true; 14266#fibo2EXIT >#52#return; 14197#L15-1 [2024-11-09 16:05:22,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash -658151768, now seen corresponding path program 1 times [2024-11-09 16:05:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616004038] [2024-11-09 16:05:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 16:05:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 16:05:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 16:05:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 16:05:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:05:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616004038] [2024-11-09 16:05:22,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616004038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 16:05:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794513135] [2024-11-09 16:05:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:22,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 16:05:22,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:22,738 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 16:05:22,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-09 16:05:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:22,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 16:05:22,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 16:05:22,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 16:05:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 16:05:22,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794513135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 16:05:22,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 16:05:22,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-11-09 16:05:22,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923839366] [2024-11-09 16:05:22,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 16:05:22,977 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 16:05:22,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1769482030, now seen corresponding path program 1 times [2024-11-09 16:05:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:05:22,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167359466] [2024-11-09 16:05:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:05:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:05:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:22,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:05:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:05:22,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:05:23,225 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:23,225 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:23,225 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:23,225 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:23,225 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 16:05:23,225 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,225 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:23,225 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:23,225 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration8_Loop [2024-11-09 16:05:23,225 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:23,225 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:23,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,264 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:23,264 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 16:05:23,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,266 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-09 16:05:23,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,278 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,278 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-09 16:05:23,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,289 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-09 16:05:23,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,302 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,302 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=4} Honda state: {fibo1_#in~n=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,314 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-09 16:05:23,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,326 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,326 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,337 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-09 16:05:23,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,349 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,349 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-09 16:05:23,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,360 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-09 16:05:23,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,373 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,373 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-09 16:05:23,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,385 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-09 16:05:23,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,396 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,397 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,408 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-09 16:05:23,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,420 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,420 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-11-09 16:05:23,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,431 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-09 16:05:23,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,443 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 16:05:23,443 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=2} Honda state: {fibo1_#t~ret4=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 16:05:23,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-09 16:05:23,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,455 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-09 16:05:23,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 16:05:23,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-09 16:05:23,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,486 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-09 16:05:23,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 16:05:23,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 16:05:23,501 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 16:05:23,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,512 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 16:05:23,512 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 16:05:23,512 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 16:05:23,512 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 16:05:23,513 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 16:05:23,513 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,513 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 16:05:23,513 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 16:05:23,513 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-1.c_Iteration8_Loop [2024-11-09 16:05:23,513 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 16:05:23,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 16:05:23,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 16:05:23,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 16:05:23,561 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 16:05:23,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,563 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-09 16:05:23,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,577 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-09 16:05:23,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,589 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-09 16:05:23,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,601 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,612 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-09 16:05:23,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,624 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-09 16:05:23,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,637 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-09 16:05:23,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,650 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,662 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-09 16:05:23,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,681 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,693 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-09 16:05:23,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,707 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-09 16:05:23,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,719 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-09 16:05:23,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,732 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-09 16:05:23,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,744 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-09 16:05:23,745 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 [2024-11-09 16:05:23,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,756 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 16:05:23,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:23,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,768 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-09 16:05:23,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 16:05:23,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 16:05:23,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 16:05:23,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 16:05:23,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 16:05:23,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 16:05:23,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 16:05:23,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 16:05:23,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 16:05:23,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 16:05:23,783 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 16:05:23,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:05:23,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:05:23,784 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:05:23,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-09 16:05:23,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 16:05:23,785 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 16:05:23,785 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 16:05:23,785 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-11-09 16:05:23,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2024-11-09 16:05:23,796 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 16:05:23,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:05:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:23,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 16:05:23,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:05:23,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 16:05:23,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 16:05:24,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 16:05:24,171 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 11 loop predicates [2024-11-09 16:05:24,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 16:05:24,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) Result 579 states and 758 transitions. Complement of second has 72 states. [2024-11-09 16:05:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 17 states 2 stem states 14 non-accepting loop states 1 accepting loop states [2024-11-09 16:05:24,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 16:05:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 80 transitions. [2024-11-09 16:05:24,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 39 letters. [2024-11-09 16:05:24,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:24,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 71 letters. Loop has 39 letters. [2024-11-09 16:05:24,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:24,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 78 letters. [2024-11-09 16:05:24,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 16:05:24,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 758 transitions. [2024-11-09 16:05:24,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2024-11-09 16:05:24,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 527 states and 695 transitions. [2024-11-09 16:05:24,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2024-11-09 16:05:24,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2024-11-09 16:05:24,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 527 states and 695 transitions. [2024-11-09 16:05:24,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 16:05:24,632 INFO L218 hiAutomatonCegarLoop]: Abstraction has 527 states and 695 transitions. [2024-11-09 16:05:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states and 695 transitions. [2024-11-09 16:05:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 476. [2024-11-09 16:05:24,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 306 states have (on average 1.1830065359477124) internal successors, (362), 325 states have internal predecessors, (362), 92 states have call successors, (93), 60 states have call predecessors, (93), 78 states have return successors, (168), 90 states have call predecessors, (168), 89 states have call successors, (168) [2024-11-09 16:05:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 623 transitions. [2024-11-09 16:05:24,641 INFO L240 hiAutomatonCegarLoop]: Abstraction has 476 states and 623 transitions. [2024-11-09 16:05:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:05:24,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 16:05:24,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-09 16:05:24,641 INFO L87 Difference]: Start difference. First operand 476 states and 623 transitions. Second operand has 18 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 8 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 16:05:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:05:24,780 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2024-11-09 16:05:24,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 58 transitions. [2024-11-09 16:05:24,780 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 16:05:24,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-09 16:05:24,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-09 16:05:24,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:05:24,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 16:05:24,781 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-09 16:05:24,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-09 16:05:24,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 16:05:24,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-09 16:05:24,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:05:24 BoogieIcfgContainer [2024-11-09 16:05:24,790 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:05:24,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:05:24,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:05:24,791 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:05:24,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:05:11" (3/4) ... [2024-11-09 16:05:24,793 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 16:05:24,793 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:05:24,794 INFO L158 Benchmark]: Toolchain (without parser) took 14211.55ms. Allocated memory was 157.3MB in the beginning and 297.8MB in the end (delta: 140.5MB). Free memory was 102.5MB in the beginning and 186.8MB in the end (delta: -84.3MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,794 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:05:24,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.94ms. Allocated memory is still 157.3MB. Free memory was 102.5MB in the beginning and 90.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.08ms. Allocated memory is still 157.3MB. Free memory was 90.5MB in the beginning and 89.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,794 INFO L158 Benchmark]: Boogie Preprocessor took 28.36ms. Allocated memory is still 157.3MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:05:24,795 INFO L158 Benchmark]: RCFGBuilder took 266.27ms. Allocated memory is still 157.3MB. Free memory was 87.4MB in the beginning and 77.0MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,795 INFO L158 Benchmark]: BuchiAutomizer took 13657.30ms. Allocated memory was 157.3MB in the beginning and 297.8MB in the end (delta: 140.5MB). Free memory was 77.0MB in the beginning and 187.9MB in the end (delta: -110.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,795 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 297.8MB. Free memory was 187.9MB in the beginning and 186.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:05:24,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.94ms. Allocated memory is still 157.3MB. Free memory was 102.5MB in the beginning and 90.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.08ms. Allocated memory is still 157.3MB. Free memory was 90.5MB in the beginning and 89.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.36ms. Allocated memory is still 157.3MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.27ms. Allocated memory is still 157.3MB. Free memory was 87.4MB in the beginning and 77.0MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 13657.30ms. Allocated memory was 157.3MB in the beginning and 297.8MB in the end (delta: 140.5MB). Free memory was 77.0MB in the beginning and 187.9MB in the end (delta: -110.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 297.8MB. Free memory was 187.9MB in the beginning and 186.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (7 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 8 locations. One deterministic module has affine ranking function n and consists of 14 locations. One deterministic module has affine ranking function n and consists of 17 locations. One nondeterministic module has affine ranking function \old(n) and consists of 9 locations. One nondeterministic module has affine ranking function \old(n) and consists of 12 locations. 7 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.6s and 9 iterations. TraceHistogramMax:6. Analysis of lassos took 7.2s. Construction of modules took 1.4s. Büchi inclusion checks took 4.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 11. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 419 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 9/41 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 732 mSDsluCounter, 1501 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1104 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2643 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 397 mSDtfsCounter, 2643 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI3 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf91 smp82 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 28 LassoNonterminationAnalysisSatUnbounded: 0 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! [2024-11-09 16:05:24,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:25,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:25,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:25,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:25,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:25,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:26,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 16:05:26,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 16:05:26,421 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