./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/fibo_5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc 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_5-1.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 2199d5dae92fc703178378f6dd7dec10a5f129181c51bc9a88c002f6d4f76a67 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 15:00:27,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 15:00:27,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 15:00:27,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 15:00:27,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 15:00:27,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 15:00:27,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 15:00:27,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 15:00:27,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 15:00:27,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 15:00:27,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 15:00:27,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 15:00:27,678 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 15:00:27,679 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 15:00:27,680 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 15:00:27,680 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 15:00:27,680 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 15:00:27,680 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 15:00:27,680 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 15:00:27,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 15:00:27,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 15:00:27,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 15:00:27,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 15:00:27,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 15:00:27,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 15:00:27,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 15:00:27,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 15:00:27,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 15:00:27,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 15:00:27,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 15:00:27,685 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 15:00:27,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 15:00:27,685 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 15:00:27,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 15:00:27,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 15:00:27,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 15:00:27,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 15:00:27,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 15:00:27,687 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 15:00:27,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2199d5dae92fc703178378f6dd7dec10a5f129181c51bc9a88c002f6d4f76a67 [2024-11-19 15:00:27,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 15:00:27,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 15:00:27,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 15:00:27,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 15:00:27,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 15:00:27,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_5-1.c [2024-11-19 15:00:29,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 15:00:29,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 15:00:29,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_5-1.c [2024-11-19 15:00:29,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c47bdcb5/e4f8d64701a74e03a23c3181f54bbf2d/FLAG60747db1c [2024-11-19 15:00:29,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c47bdcb5/e4f8d64701a74e03a23c3181f54bbf2d [2024-11-19 15:00:29,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 15:00:29,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 15:00:29,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 15:00:29,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 15:00:29,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 15:00:29,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:29,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727af838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29, skipping insertion in model container [2024-11-19 15:00:29,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:29,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 15:00:29,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 15:00:29,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 15:00:29,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 15:00:29,978 INFO L204 MainTranslator]: Completed translation [2024-11-19 15:00:29,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29 WrapperNode [2024-11-19 15:00:29,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 15:00:29,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 15:00:29,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 15:00:29,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 15:00:29,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:29,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:29,998 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-19 15:00:29,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 15:00:29,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 15:00:29,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 15:00:29,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 15:00:30,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,016 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]. [2024-11-19 15:00:30,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 15:00:30,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 15:00:30,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 15:00:30,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 15:00:30,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (1/1) ... [2024-11-19 15:00:30,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,053 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) [2024-11-19 15:00:30,061 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 [2024-11-19 15:00:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 15:00:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 15:00:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 15:00:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 15:00:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-11-19 15:00:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-11-19 15:00:30,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 15:00:30,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 15:00:30,306 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-19 15:00:30,307 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 15:00:30,319 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 15:00:30,319 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 15:00:30,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:30 BoogieIcfgContainer [2024-11-19 15:00:30,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 15:00:30,321 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 15:00:30,321 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 15:00:30,323 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 15:00:30,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 15:00:30,324 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 03:00:29" (1/3) ... [2024-11-19 15:00:30,325 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6794ea74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 03:00:30, skipping insertion in model container [2024-11-19 15:00:30,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 15:00:30,325 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:29" (2/3) ... [2024-11-19 15:00:30,325 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6794ea74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 03:00:30, skipping insertion in model container [2024-11-19 15:00:30,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 15:00:30,326 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:30" (3/3) ... [2024-11-19 15:00:30,326 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_5-1.c [2024-11-19 15:00:30,363 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 15:00:30,363 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 15:00:30,363 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 15:00:30,364 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 15:00:30,364 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 15:00:30,364 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 15:00:30,364 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 15:00:30,364 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 15:00:30,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 15:00:30,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:30,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:30,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:30,384 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 15:00:30,384 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 15:00:30,385 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 15:00:30,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 15:00:30,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:30,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:30,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:30,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 15:00:30,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 15:00:30,395 INFO L745 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5; 4#L27true call main_#t~ret6#1 := fibo(main_~x~0#1);< 11#$Ultimate##0true [2024-11-19 15:00:30,395 INFO L747 eck$LassoCheckResult]: Loop: 11#$Ultimate##0true ~n := #in~n; 5#L8true assume !(~n < 1); 7#L10true assume !(1 == ~n); 13#L13true call #t~ret4 := fibo(~n - 1);< 11#$Ultimate##0true [2024-11-19 15:00:30,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash 29885, now seen corresponding path program 1 times [2024-11-19 15:00:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800128725] [2024-11-19 15:00:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:30,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:30,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 1 times [2024-11-19 15:00:30,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:30,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835500874] [2024-11-19 15:00:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:30,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:30,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1830210312, now seen corresponding path program 1 times [2024-11-19 15:00:30,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:30,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816418478] [2024-11-19 15:00:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:30,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:30,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:30,666 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:30,667 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:30,667 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:30,667 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:30,667 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:30,667 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,667 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:30,667 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:30,667 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration1_Loop [2024-11-19 15:00:30,668 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:30,668 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:30,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,750 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:30,751 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:30,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,757 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) [2024-11-19 15:00:30,758 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 [2024-11-19 15:00:30,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:30,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:30,775 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:30,775 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:30,789 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 [2024-11-19 15:00:30,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,791 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) [2024-11-19 15:00:30,795 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 [2024-11-19 15:00:30,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:30,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:30,807 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:30,807 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:30,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-19 15:00:30,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,822 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) [2024-11-19 15:00:30,823 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 [2024-11-19 15:00:30,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:30,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:30,839 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:30,839 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:30,855 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 [2024-11-19 15:00:30,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,858 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) [2024-11-19 15:00:30,858 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 [2024-11-19 15:00:30,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:30,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:30,881 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 [2024-11-19 15:00:30,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:30,883 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) [2024-11-19 15:00:30,884 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 [2024-11-19 15:00:30,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:30,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:30,937 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:30,947 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 [2024-11-19 15:00:30,947 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:30,947 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:30,947 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:30,948 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:30,948 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:30,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:30,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:30,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:30,948 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration1_Loop [2024-11-19 15:00:30,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:30,948 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:30,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:30,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:31,018 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:31,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,021 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) [2024-11-19 15:00:31,022 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 [2024-11-19 15:00:31,023 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 [2024-11-19 15:00:31,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:31,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:31,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:31,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:31,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:31,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:31,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:31,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:31,051 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 [2024-11-19 15:00:31,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,053 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) [2024-11-19 15:00:31,056 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 [2024-11-19 15:00:31,057 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 [2024-11-19 15:00:31,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:31,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:31,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:31,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:31,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:31,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:31,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:31,069 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:31,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-19 15:00:31,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,084 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) [2024-11-19 15:00:31,085 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 [2024-11-19 15:00:31,087 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 [2024-11-19 15:00:31,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:31,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:31,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:31,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:31,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:31,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:31,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:31,103 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:31,114 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 [2024-11-19 15:00:31,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,116 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) [2024-11-19 15:00:31,117 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 [2024-11-19 15:00:31,117 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 [2024-11-19 15:00:31,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:31,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:31,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:31,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:31,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:31,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:31,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:31,133 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:31,136 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:31,137 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 15:00:31,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,157 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) [2024-11-19 15:00:31,158 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 [2024-11-19 15:00:31,159 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:31,159 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:31,159 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:31,160 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2024-11-19 15:00:31,170 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 [2024-11-19 15:00:31,173 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:31,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 15:00:31,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:31,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:31,291 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-19 15:00:31,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 15:00:31,357 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 54 transitions. Complement of second has 16 states. [2024-11-19 15:00:31,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 15:00:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2024-11-19 15:00:31,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-19 15:00:31,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:31,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-19 15:00:31,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:31,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-19 15:00:31,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:31,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions. [2024-11-19 15:00:31,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:31,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 23 states and 31 transitions. [2024-11-19 15:00:31,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-19 15:00:31,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-19 15:00:31,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2024-11-19 15:00:31,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:31,372 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2024-11-19 15:00:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2024-11-19 15:00:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2024-11-19 15:00:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2024-11-19 15:00:31,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-19 15:00:31,391 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-19 15:00:31,391 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 15:00:31,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2024-11-19 15:00:31,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:31,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:31,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:31,393 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:31,393 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:31,393 INFO L745 eck$LassoCheckResult]: Stem: 135#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 136#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5; 121#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 120#$Ultimate##0 ~n := #in~n; 122#L8 assume !(~n < 1); 134#L10 assume !(1 == ~n); 124#L13 call #t~ret4 := fibo(~n - 1);< 123#$Ultimate##0 ~n := #in~n; 125#L8 assume ~n < 1;#res := 0; 131#fiboFINAL assume true; 132#fiboEXIT >#35#return; 127#L13-1 [2024-11-19 15:00:31,394 INFO L747 eck$LassoCheckResult]: Loop: 127#L13-1 call #t~ret5 := fibo(~n - 2);< 128#$Ultimate##0 ~n := #in~n; 138#L8 assume !(~n < 1); 139#L10 assume !(1 == ~n); 126#L13 call #t~ret4 := fibo(~n - 1);< 128#$Ultimate##0 ~n := #in~n; 138#L8 assume ~n < 1;#res := 0; 130#fiboFINAL assume true; 137#fiboEXIT >#35#return; 127#L13-1 [2024-11-19 15:00:31,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 523436175, now seen corresponding path program 1 times [2024-11-19 15:00:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:31,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394657739] [2024-11-19 15:00:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:31,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 15:00:31,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394657739] [2024-11-19 15:00:31,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394657739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 15:00:31,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 15:00:31,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 15:00:31,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585245735] [2024-11-19 15:00:31,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 15:00:31,474 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-19 15:00:31,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:31,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1950983701, now seen corresponding path program 1 times [2024-11-19 15:00:31,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:31,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566413600] [2024-11-19 15:00:31,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:31,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 15:00:31,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566413600] [2024-11-19 15:00:31,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566413600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 15:00:31,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 15:00:31,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 15:00:31,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781461967] [2024-11-19 15:00:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 15:00:31,519 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 15:00:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 15:00:31,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 15:00:31,522 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 15:00:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:31,568 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2024-11-19 15:00:31,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-11-19 15:00:31,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:31,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions. [2024-11-19 15:00:31,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-19 15:00:31,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-19 15:00:31,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2024-11-19 15:00:31,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:31,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-11-19 15:00:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2024-11-19 15:00:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-19 15:00:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-19 15:00:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2024-11-19 15:00:31,573 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-11-19 15:00:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 15:00:31,574 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-11-19 15:00:31,575 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 15:00:31,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2024-11-19 15:00:31,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-19 15:00:31,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:31,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:31,576 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:31,576 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:31,576 INFO L745 eck$LassoCheckResult]: Stem: 199#$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(11, 2);call #Ultimate.allocInit(12, 3); 200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5; 184#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 183#$Ultimate##0 ~n := #in~n; 185#L8 assume !(~n < 1); 198#L10 assume !(1 == ~n); 187#L13 call #t~ret4 := fibo(~n - 1);< 186#$Ultimate##0 ~n := #in~n; 188#L8 assume !(~n < 1); 206#L10 assume 1 == ~n;#res := 1; 205#fiboFINAL assume true; 204#fiboEXIT >#35#return; 190#L13-1 [2024-11-19 15:00:31,577 INFO L747 eck$LassoCheckResult]: Loop: 190#L13-1 call #t~ret5 := fibo(~n - 2);< 191#$Ultimate##0 ~n := #in~n; 196#L8 assume !(~n < 1); 197#L10 assume !(1 == ~n); 189#L13 call #t~ret4 := fibo(~n - 1);< 191#$Ultimate##0 ~n := #in~n; 196#L8 assume !(~n < 1); 197#L10 assume 1 == ~n;#res := 1; 201#fiboFINAL assume true; 202#fiboEXIT >#35#return; 190#L13-1 [2024-11-19 15:00:31,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash -953322862, now seen corresponding path program 1 times [2024-11-19 15:00:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936429694] [2024-11-19 15:00:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936429694] [2024-11-19 15:00:31,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936429694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 15:00:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485442080] [2024-11-19 15:00:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:31,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 15:00:31,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,637 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 15:00:31,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 15:00:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:31,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 15:00:31,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:31,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 15:00:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485442080] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 15:00:31,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 15:00:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-19 15:00:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524902517] [2024-11-19 15:00:31,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 15:00:31,764 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-19 15:00:31,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:31,765 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 1 times [2024-11-19 15:00:31,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:31,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885817257] [2024-11-19 15:00:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:31,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:31,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:31,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:31,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-19 15:00:31,924 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:31,924 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:31,924 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:31,924 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:31,924 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:31,924 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,924 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:31,924 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:31,925 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration3_Loop [2024-11-19 15:00:31,925 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:31,925 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:31,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:31,967 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:31,968 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:31,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:31,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:31,970 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) [2024-11-19 15:00:31,973 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 [2024-11-19 15:00:31,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:31,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:31,988 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:31,988 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:31,999 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 [2024-11-19 15:00:32,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,005 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) [2024-11-19 15:00:32,006 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 [2024-11-19 15:00:32,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:32,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:32,018 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:32,018 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:32,032 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 [2024-11-19 15:00:32,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,036 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) [2024-11-19 15:00:32,037 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 [2024-11-19 15:00:32,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:32,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:32,051 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:32,052 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:32,062 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 [2024-11-19 15:00:32,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,064 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) [2024-11-19 15:00:32,065 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 [2024-11-19 15:00:32,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:32,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:32,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:32,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,093 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) [2024-11-19 15:00:32,094 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 [2024-11-19 15:00:32,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:32,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:32,108 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:32,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:32,120 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:32,121 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:32,121 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:32,121 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:32,121 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:32,121 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,121 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:32,121 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:32,121 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration3_Loop [2024-11-19 15:00:32,121 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:32,121 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:32,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:32,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:32,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:32,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:32,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:32,165 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:32,165 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,166 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:32,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-19 15:00:32,171 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 [2024-11-19 15:00:32,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:32,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:32,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:32,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:32,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:32,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:32,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:32,183 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:32,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-19 15:00:32,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,199 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) [2024-11-19 15:00:32,200 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 [2024-11-19 15:00:32,201 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 [2024-11-19 15:00:32,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:32,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:32,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:32,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:32,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:32,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:32,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:32,214 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:32,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-19 15:00:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,225 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) [2024-11-19 15:00:32,226 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 [2024-11-19 15:00:32,227 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 [2024-11-19 15:00:32,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:32,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:32,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:32,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:32,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:32,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:32,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:32,239 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:32,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-19 15:00:32,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,251 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) [2024-11-19 15:00:32,253 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 [2024-11-19 15:00:32,253 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 [2024-11-19 15:00:32,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:32,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:32,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:32,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:32,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:32,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:32,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:32,265 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:32,279 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 [2024-11-19 15:00:32,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,280 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) [2024-11-19 15:00:32,282 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 [2024-11-19 15:00:32,283 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 [2024-11-19 15:00:32,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:32,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:32,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:32,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:32,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:32,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:32,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:32,296 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:32,298 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:32,298 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 15:00:32,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:32,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,300 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) [2024-11-19 15:00:32,301 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 [2024-11-19 15:00:32,302 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:32,302 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:32,302 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:32,302 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2024-11-19 15:00:32,312 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 [2024-11-19 15:00:32,313 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:32,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:32,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 15:00:32,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:32,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 15:00:32,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:32,507 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-19 15:00:32,507 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 15:00:32,677 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 128 states and 178 transitions. Complement of second has 40 states. [2024-11-19 15:00:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 15:00:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-11-19 15:00:32,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 10 letters. [2024-11-19 15:00:32,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:32,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 22 letters. Loop has 10 letters. [2024-11-19 15:00:32,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:32,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 20 letters. [2024-11-19 15:00:32,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:32,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 178 transitions. [2024-11-19 15:00:32,684 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-19 15:00:32,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 151 transitions. [2024-11-19 15:00:32,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-11-19 15:00:32,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-11-19 15:00:32,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 151 transitions. [2024-11-19 15:00:32,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:32,688 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-11-19 15:00:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 151 transitions. [2024-11-19 15:00:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2024-11-19 15:00:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (35), 18 states have call predecessors, (35), 19 states have call successors, (35) [2024-11-19 15:00:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2024-11-19 15:00:32,697 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 128 transitions. [2024-11-19 15:00:32,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:32,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 15:00:32,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 15:00:32,698 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 15:00:32,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:32,788 INFO L93 Difference]: Finished difference Result 119 states and 163 transitions. [2024-11-19 15:00:32,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 163 transitions. [2024-11-19 15:00:32,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-19 15:00:32,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 114 states and 158 transitions. [2024-11-19 15:00:32,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2024-11-19 15:00:32,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2024-11-19 15:00:32,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions. [2024-11-19 15:00:32,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:32,794 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-19 15:00:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions. [2024-11-19 15:00:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2024-11-19 15:00:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (39), 20 states have call predecessors, (39), 22 states have call successors, (39) [2024-11-19 15:00:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2024-11-19 15:00:32,803 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 143 transitions. [2024-11-19 15:00:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 15:00:32,804 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 143 transitions. [2024-11-19 15:00:32,804 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 15:00:32,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 143 transitions. [2024-11-19 15:00:32,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-19 15:00:32,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:32,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:32,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:32,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:32,807 INFO L745 eck$LassoCheckResult]: Stem: 792#$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(11, 2);call #Ultimate.allocInit(12, 3); 793#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5; 778#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 779#$Ultimate##0 ~n := #in~n; 796#L8 assume !(~n < 1); 797#L10 assume !(1 == ~n); 766#L13 call #t~ret4 := fibo(~n - 1);< 765#$Ultimate##0 ~n := #in~n; 767#L8 assume !(~n < 1); 826#L10 assume !(1 == ~n); 770#L13 call #t~ret4 := fibo(~n - 1);< 771#$Ultimate##0 ~n := #in~n; 824#L8 assume !(~n < 1); 822#L10 assume !(1 == ~n); 817#L13 call #t~ret4 := fibo(~n - 1);< 771#$Ultimate##0 ~n := #in~n; 824#L8 assume !(~n < 1); 822#L10 assume !(1 == ~n); 817#L13 call #t~ret4 := fibo(~n - 1);< 771#$Ultimate##0 ~n := #in~n; 825#L8 assume !(~n < 1); 823#L10 assume 1 == ~n;#res := 1; 821#fiboFINAL assume true; 820#fiboEXIT >#35#return; 803#L13-1 call #t~ret5 := fibo(~n - 2);< 818#$Ultimate##0 ~n := #in~n; 864#L8 assume ~n < 1;#res := 0; 862#fiboFINAL assume true; 861#fiboEXIT >#37#return; 859#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 858#fiboFINAL assume true; 852#fiboEXIT >#35#return; 801#L13-1 [2024-11-19 15:00:32,807 INFO L747 eck$LassoCheckResult]: Loop: 801#L13-1 call #t~ret5 := fibo(~n - 2);< 769#$Ultimate##0 ~n := #in~n; 856#L8 assume !(~n < 1); 798#L10 assume !(1 == ~n); 800#L13 call #t~ret4 := fibo(~n - 1);< 769#$Ultimate##0 ~n := #in~n; 856#L8 assume !(~n < 1); 798#L10 assume 1 == ~n;#res := 1; 802#fiboFINAL assume true; 848#fiboEXIT >#35#return; 801#L13-1 [2024-11-19 15:00:32,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 1 times [2024-11-19 15:00:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:32,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76426423] [2024-11-19 15:00:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:32,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:32,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:32,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:32,832 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 2 times [2024-11-19 15:00:32,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:32,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723777665] [2024-11-19 15:00:32,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:32,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:32,837 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:32,838 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:32,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:32,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:32,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1521208943, now seen corresponding path program 2 times [2024-11-19 15:00:32,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:32,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447362134] [2024-11-19 15:00:32,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:32,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:32,853 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:32,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 15:00:32,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447362134] [2024-11-19 15:00:32,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447362134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 15:00:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848068071] [2024-11-19 15:00:32,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:32,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 15:00:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:32,999 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 15:00:33,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 15:00:33,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:33,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:33,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 15:00:33,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 39 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 15:00:33,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 15:00:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 39 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 15:00:33,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848068071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 15:00:33,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 15:00:33,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15 [2024-11-19 15:00:33,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875198179] [2024-11-19 15:00:33,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 15:00:33,289 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:33,289 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:33,289 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:33,289 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:33,289 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:33,289 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,289 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:33,289 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:33,289 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration4_Loop [2024-11-19 15:00:33,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:33,290 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:33,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,332 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:33,332 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:33,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,334 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) [2024-11-19 15:00:33,335 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 [2024-11-19 15:00:33,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:33,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,351 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:33,351 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:33,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-19 15:00:33,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,363 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) [2024-11-19 15:00:33,364 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 [2024-11-19 15:00:33,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:33,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,376 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:33,376 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:33,387 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 [2024-11-19 15:00:33,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,390 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) [2024-11-19 15:00:33,391 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 [2024-11-19 15:00:33,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:33,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,405 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:33,405 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:33,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:33,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,420 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) [2024-11-19 15:00:33,421 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 [2024-11-19 15:00:33,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:33,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,433 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:33,433 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:33,445 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 [2024-11-19 15:00:33,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,449 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) [2024-11-19 15:00:33,450 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 [2024-11-19 15:00:33,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:33,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,474 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 [2024-11-19 15:00:33,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,476 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) [2024-11-19 15:00:33,480 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 [2024-11-19 15:00:33,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:33,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:33,507 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:33,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:33,528 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:33,528 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:33,528 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:33,528 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:33,529 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:33,529 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,529 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:33,529 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:33,529 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration4_Loop [2024-11-19 15:00:33,529 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:33,529 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:33,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:33,574 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:33,574 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:33,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,578 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) [2024-11-19 15:00:33,579 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 [2024-11-19 15:00:33,579 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 [2024-11-19 15:00:33,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:33,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:33,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:33,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:33,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:33,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:33,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:33,592 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:33,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-19 15:00:33,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,618 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:33,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-19 15:00:33,621 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 [2024-11-19 15:00:33,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:33,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:33,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:33,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:33,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:33,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:33,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:33,638 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:33,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:33,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,656 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) [2024-11-19 15:00:33,660 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 [2024-11-19 15:00:33,661 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 [2024-11-19 15:00:33,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:33,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:33,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:33,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:33,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:33,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:33,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:33,673 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:33,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:33,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,687 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) [2024-11-19 15:00:33,688 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 [2024-11-19 15:00:33,689 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 [2024-11-19 15:00:33,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:33,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:33,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:33,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:33,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:33,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:33,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:33,704 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:33,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-19 15:00:33,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,720 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) [2024-11-19 15:00:33,723 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 [2024-11-19 15:00:33,724 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 [2024-11-19 15:00:33,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:33,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:33,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:33,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:33,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:33,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:33,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:33,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:33,742 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:33,742 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 15:00:33,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:33,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:33,746 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) [2024-11-19 15:00:33,747 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 [2024-11-19 15:00:33,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:33,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:33,747 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:33,747 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2024-11-19 15:00:33,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:33,762 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:33,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:33,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 15:00:33,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:33,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-19 15:00:34,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-19 15:00:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:34,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 15:00:34,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:34,102 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-19 15:00:34,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:34,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 190 states and 265 transitions. Complement of second has 37 states. [2024-11-19 15:00:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-11-19 15:00:34,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 32 letters. Loop has 10 letters. [2024-11-19 15:00:34,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:34,322 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:34,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:34,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 15:00:34,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:34,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 15:00:34,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:34,749 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-19 15:00:34,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:34,904 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 296 states and 402 transitions. Complement of second has 29 states. [2024-11-19 15:00:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2024-11-19 15:00:34,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 32 letters. Loop has 10 letters. [2024-11-19 15:00:34,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:34,906 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:34,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:34,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 15:00:34,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:35,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 15:00:35,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:35,163 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 6 loop predicates [2024-11-19 15:00:35,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:35,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 817 states and 1129 transitions. Complement of second has 135 states. [2024-11-19 15:00:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 15:00:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-11-19 15:00:35,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 10 letters. [2024-11-19 15:00:35,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:35,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 42 letters. Loop has 10 letters. [2024-11-19 15:00:35,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:35,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 20 letters. [2024-11-19 15:00:35,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:35,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1129 transitions. [2024-11-19 15:00:35,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2024-11-19 15:00:35,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 418 states and 629 transitions. [2024-11-19 15:00:35,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162 [2024-11-19 15:00:35,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2024-11-19 15:00:35,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 418 states and 629 transitions. [2024-11-19 15:00:35,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:35,543 INFO L218 hiAutomatonCegarLoop]: Abstraction has 418 states and 629 transitions. [2024-11-19 15:00:35,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states and 629 transitions. [2024-11-19 15:00:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 356. [2024-11-19 15:00:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 223 states have (on average 1.1973094170403586) internal successors, (267), 239 states have internal predecessors, (267), 75 states have call successors, (84), 46 states have call predecessors, (84), 58 states have return successors, (142), 70 states have call predecessors, (142), 71 states have call successors, (142) [2024-11-19 15:00:35,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2024-11-19 15:00:35,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 493 transitions. [2024-11-19 15:00:35,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:35,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 15:00:35,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-19 15:00:35,627 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 15 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 7 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 15:00:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:36,026 INFO L93 Difference]: Finished difference Result 139 states and 169 transitions. [2024-11-19 15:00:36,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 169 transitions. [2024-11-19 15:00:36,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 15:00:36,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 137 states and 165 transitions. [2024-11-19 15:00:36,029 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-11-19 15:00:36,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 97 [2024-11-19 15:00:36,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 165 transitions. [2024-11-19 15:00:36,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:36,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 165 transitions. [2024-11-19 15:00:36,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 165 transitions. [2024-11-19 15:00:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 104. [2024-11-19 15:00:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 70 states have internal predecessors, (78), 20 states have call successors, (24), 16 states have call predecessors, (24), 14 states have return successors, (22), 17 states have call predecessors, (22), 17 states have call successors, (22) [2024-11-19 15:00:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2024-11-19 15:00:36,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 124 transitions. [2024-11-19 15:00:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 15:00:36,054 INFO L425 stractBuchiCegarLoop]: Abstraction has 104 states and 124 transitions. [2024-11-19 15:00:36,054 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 15:00:36,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 124 transitions. [2024-11-19 15:00:36,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 15:00:36,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:36,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:36,055 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:36,055 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 15:00:36,055 INFO L745 eck$LassoCheckResult]: Stem: 3617#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 3618#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5; 3608#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 3609#$Ultimate##0 ~n := #in~n; 3650#L8 assume !(~n < 1); 3646#L10 assume !(1 == ~n); 3639#L13 call #t~ret4 := fibo(~n - 1);< 3645#$Ultimate##0 ~n := #in~n; 3644#L8 assume !(~n < 1); 3643#L10 assume !(1 == ~n); 3598#L13 call #t~ret4 := fibo(~n - 1);< 3599#$Ultimate##0 ~n := #in~n; 3651#L8 assume !(~n < 1); 3649#L10 assume !(1 == ~n); 3597#L13 call #t~ret4 := fibo(~n - 1);< 3599#$Ultimate##0 ~n := #in~n; 3652#L8 assume !(~n < 1); 3661#L10 assume 1 == ~n;#res := 1; 3660#fiboFINAL assume true; 3658#fiboEXIT >#35#return; 3642#L13-1 call #t~ret5 := fibo(~n - 2);< 3667#$Ultimate##0 ~n := #in~n; 3663#L8 assume ~n < 1;#res := 0; 3662#fiboFINAL assume true; 3655#fiboEXIT >#37#return; 3653#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 3654#fiboFINAL assume true; 3641#fiboEXIT >#35#return; 3620#L13-1 call #t~ret5 := fibo(~n - 2);< 3638#$Ultimate##0 ~n := #in~n; 3637#L8 assume !(~n < 1); 3635#L10 assume !(1 == ~n); 3636#L13 call #t~ret4 := fibo(~n - 1);< 3596#$Ultimate##0 ~n := #in~n; 3686#L8 assume !(~n < 1); 3683#L10 assume !(1 == ~n); 3602#L13 call #t~ret4 := fibo(~n - 1);< 3671#$Ultimate##0 [2024-11-19 15:00:36,055 INFO L747 eck$LassoCheckResult]: Loop: 3671#$Ultimate##0 ~n := #in~n; 3685#L8 assume !(~n < 1); 3682#L10 assume !(1 == ~n); 3601#L13 call #t~ret4 := fibo(~n - 1);< 3671#$Ultimate##0 [2024-11-19 15:00:36,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash 977790313, now seen corresponding path program 3 times [2024-11-19 15:00:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:36,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129917408] [2024-11-19 15:00:36,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 15:00:36,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:36,077 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 15:00:36,077 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 43 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 15:00:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129917408] [2024-11-19 15:00:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129917408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 15:00:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523261886] [2024-11-19 15:00:36,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 15:00:36,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 15:00:36,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,374 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 15:00:36,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-19 15:00:36,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 15:00:36,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:36,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 15:00:36,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 37 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 15:00:36,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 15:00:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 15:00:36,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523261886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 15:00:36,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 15:00:36,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 20 [2024-11-19 15:00:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019249840] [2024-11-19 15:00:36,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 15:00:36,683 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-19 15:00:36,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:36,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 2 times [2024-11-19 15:00:36,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:36,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815657555] [2024-11-19 15:00:36,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:36,686 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 15:00:36,686 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:36,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:36,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:36,718 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:36,718 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:36,718 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:36,718 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:36,718 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:36,718 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,718 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:36,718 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:36,719 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration5_Loop [2024-11-19 15:00:36,719 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:36,719 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:36,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,752 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:36,753 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:36,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,754 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) [2024-11-19 15:00:36,755 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 [2024-11-19 15:00:36,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:36,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:36,767 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:36,768 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:36,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:36,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,783 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) [2024-11-19 15:00:36,784 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 [2024-11-19 15:00:36,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:36,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:36,795 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:36,796 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:36,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:36,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,814 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) [2024-11-19 15:00:36,815 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 [2024-11-19 15:00:36,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:36,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:36,841 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:36,841 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:36,859 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 [2024-11-19 15:00:36,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,861 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) [2024-11-19 15:00:36,865 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 [2024-11-19 15:00:36,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:36,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:36,891 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 [2024-11-19 15:00:36,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:36,893 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) [2024-11-19 15:00:36,894 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 [2024-11-19 15:00:36,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:36,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:36,922 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:36,926 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 [2024-11-19 15:00:36,927 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:36,927 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:36,927 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:36,927 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:36,927 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:36,927 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:36,927 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:36,927 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:36,927 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_5-1.c_Iteration5_Loop [2024-11-19 15:00:36,927 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:36,927 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:36,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:36,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:37,002 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:37,003 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,004 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) [2024-11-19 15:00:37,005 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 [2024-11-19 15:00:37,006 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 [2024-11-19 15:00:37,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:37,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:37,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:37,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:37,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:37,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:37,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:37,018 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:37,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:37,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,030 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) [2024-11-19 15:00:37,032 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 [2024-11-19 15:00:37,033 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 [2024-11-19 15:00:37,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:37,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:37,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:37,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:37,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:37,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:37,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:37,046 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:37,060 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 [2024-11-19 15:00:37,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,062 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) [2024-11-19 15:00:37,063 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 [2024-11-19 15:00:37,065 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 [2024-11-19 15:00:37,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:37,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:37,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:37,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:37,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:37,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:37,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:37,083 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:37,103 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 [2024-11-19 15:00:37,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,105 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) [2024-11-19 15:00:37,106 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 [2024-11-19 15:00:37,107 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 [2024-11-19 15:00:37,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:37,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:37,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:37,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:37,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:37,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:37,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:37,119 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:37,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:37,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,135 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) [2024-11-19 15:00:37,135 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 [2024-11-19 15:00:37,137 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 [2024-11-19 15:00:37,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:37,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:37,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:37,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:37,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:37,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:37,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:37,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:37,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:37,152 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 15:00:37,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:37,154 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) [2024-11-19 15:00:37,155 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 [2024-11-19 15:00:37,155 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:37,155 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:37,155 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:37,155 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2024-11-19 15:00:37,171 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 [2024-11-19 15:00:37,172 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:37,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:37,419 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-19 15:00:37,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,465 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 114 states and 134 transitions. Complement of second has 15 states. [2024-11-19 15:00:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2024-11-19 15:00:37,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2024-11-19 15:00:37,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:37,467 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:37,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:37,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-19 15:00:37,652 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 114 states and 134 transitions. Complement of second has 15 states. [2024-11-19 15:00:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:37,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2024-11-19 15:00:37,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2024-11-19 15:00:37,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:37,696 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:37,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:37,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:37,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:37,875 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 3 loop predicates [2024-11-19 15:00:37,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 104 states and 124 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 155 states and 177 transitions. Complement of second has 19 states. [2024-11-19 15:00:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-19 15:00:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 15:00:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2024-11-19 15:00:37,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 4 letters. [2024-11-19 15:00:37,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:37,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 41 letters. Loop has 4 letters. [2024-11-19 15:00:37,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:37,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 8 letters. [2024-11-19 15:00:37,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:37,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 177 transitions. [2024-11-19 15:00:37,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 15:00:37,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 0 states and 0 transitions. [2024-11-19 15:00:37,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 15:00:37,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 15:00:37,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 15:00:37,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 15:00:37,933 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:37,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 15:00:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-19 15:00:37,934 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 20 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 12 states have call successors, (15), 8 states have call predecessors, (15), 3 states have return successors, (7), 4 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-19 15:00:37,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:37,934 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 15:00:37,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 15:00:37,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 15:00:37,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 15:00:37,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:37,934 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 15:00:37,935 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:37,935 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 15:00:37,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-19 15:00:37,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 15:00:37,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-19 15:00:37,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 03:00:37 BoogieIcfgContainer [2024-11-19 15:00:37,943 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 15:00:37,944 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 15:00:37,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 15:00:37,944 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 15:00:37,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:30" (3/4) ... [2024-11-19 15:00:37,946 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 15:00:37,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 15:00:37,947 INFO L158 Benchmark]: Toolchain (without parser) took 8196.34ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 117.1MB in the beginning and 113.7MB in the end (delta: 3.5MB). Peak memory consumption was 126.6MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,947 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 15:00:37,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.40ms. Allocated memory is still 188.7MB. Free memory was 116.9MB in the beginning and 105.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.52ms. Allocated memory is still 188.7MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,948 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 188.7MB. Free memory was 103.7MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,948 INFO L158 Benchmark]: RCFGBuilder took 296.90ms. Allocated memory is still 188.7MB. Free memory was 102.2MB in the beginning and 153.7MB in the end (delta: -51.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,948 INFO L158 Benchmark]: BuchiAutomizer took 7622.62ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 153.7MB in the beginning and 113.7MB in the end (delta: 40.0MB). Peak memory consumption was 163.7MB. Max. memory is 16.1GB. [2024-11-19 15:00:37,949 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 310.4MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 15:00:37,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.40ms. Allocated memory is still 188.7MB. Free memory was 116.9MB in the beginning and 105.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.52ms. Allocated memory is still 188.7MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 188.7MB. Free memory was 103.7MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.90ms. Allocated memory is still 188.7MB. Free memory was 102.2MB in the beginning and 153.7MB in the end (delta: -51.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7622.62ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 153.7MB in the beginning and 113.7MB in the end (delta: 40.0MB). Peak memory consumption was 163.7MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 310.4MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 2 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 5 locations. One deterministic module has affine ranking function n and consists of 10 locations. One nondeterministic module has affine ranking function n and consists of 10 locations. One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 6 iterations. TraceHistogramMax:7. Analysis of lassos took 3.7s. Construction of modules took 0.6s. Büchi inclusion checks took 2.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 117 StatesRemovedByMinimization, 5 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 [2, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 288 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 276 mSDsluCounter, 372 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 742 IncrementalHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 158 mSDtfsCounter, 742 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI1 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf91 smp82 dnf100 smp100 tf113 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-19 15:00:37,970 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 [2024-11-19 15:00:38,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:38,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:38,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 15:00:38,781 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