./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d 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/McCarthy91-2.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 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:49:08,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:49:08,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:49:08,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:49:08,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:49:08,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:49:08,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:49:08,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:49:08,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:49:08,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:49:08,353 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:49:08,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:49:08,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:49:08,356 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:49:08,357 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:49:08,357 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:49:08,357 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:49:08,358 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:49:08,358 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:49:08,358 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:49:08,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:49:08,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:49:08,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:49:08,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:49:08,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:49:08,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:49:08,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:49:08,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:49:08,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:49:08,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:49:08,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:49:08,365 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:49:08,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:49:08,366 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:49:08,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:49:08,366 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:49:08,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:49:08,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:49:08,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:49:08,368 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:49:08,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2024-11-17 08:49:08,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:49:08,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:49:08,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:49:08,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:49:08,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:49:08,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-17 08:49:10,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:49:10,263 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:49:10,264 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-17 08:49:10,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd2c38de/40fa4b61f57e411da0ea84f92d165002/FLAG97c2cc328 [2024-11-17 08:49:10,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd2c38de/40fa4b61f57e411da0ea84f92d165002 [2024-11-17 08:49:10,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:49:10,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:49:10,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:49:10,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:49:10,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:49:10,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548d237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10, skipping insertion in model container [2024-11-17 08:49:10,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:49:10,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:49:10,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:49:10,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:49:10,549 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:49:10,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10 WrapperNode [2024-11-17 08:49:10,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:49:10,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:49:10,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:49:10,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:49:10,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,588 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-17 08:49:10,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:49:10,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:49:10,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:49:10,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:49:10,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,611 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]. [2024-11-17 08:49:10,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,619 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:49:10,624 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:49:10,624 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:49:10,624 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:49:10,625 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (1/1) ... [2024-11-17 08:49:10,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:10,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:10,673 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) [2024-11-17 08:49:10,692 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 [2024-11-17 08:49:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:49:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:49:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:49:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:49:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2024-11-17 08:49:10,736 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2024-11-17 08:49:10,793 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:49:10,795 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:49:10,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: havoc #t~ret4;havoc #t~ret5; [2024-11-17 08:49:10,886 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-17 08:49:10,886 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:49:10,903 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:49:10,904 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:49:10,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:10 BoogieIcfgContainer [2024-11-17 08:49:10,906 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:49:10,908 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:49:10,908 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:49:10,911 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:49:10,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:10,912 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:49:10" (1/3) ... [2024-11-17 08:49:10,913 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c3c5717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:49:10, skipping insertion in model container [2024-11-17 08:49:10,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:10,914 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:49:10" (2/3) ... [2024-11-17 08:49:10,914 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c3c5717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:49:10, skipping insertion in model container [2024-11-17 08:49:10,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:49:10,915 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:10" (3/3) ... [2024-11-17 08:49:10,916 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2024-11-17 08:49:10,979 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:49:10,979 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:49:10,980 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:49:10,980 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:49:10,980 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:49:10,980 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:49:10,981 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:49:10,981 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:49:10,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-11-17 08:49:11,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:11,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:11,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:11,011 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:49:11,011 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:49:11,012 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:49:11,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-11-17 08:49:11,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:11,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:11,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:11,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:49:11,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:49:11,020 INFO L745 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue 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(15, 2);call #Ultimate.allocInit(12, 3); 11#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 13#L28-1true call main_#t~ret7#1 := f91(main_~x~0#1);< 9#f91ENTRYtrue [2024-11-17 08:49:11,021 INFO L747 eck$LassoCheckResult]: Loop: 9#f91ENTRYtrue ~x := #in~x; 10#L18true assume !(~x > 100); 8#L21-3true call #t~ret4 := f91(11 + ~x);< 9#f91ENTRYtrue [2024-11-17 08:49:11,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:11,028 INFO L85 PathProgramCache]: Analyzing trace with hash 38707, now seen corresponding path program 1 times [2024-11-17 08:49:11,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:11,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338463808] [2024-11-17 08:49:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:11,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:11,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash 46647, now seen corresponding path program 1 times [2024-11-17 08:49:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:11,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950287269] [2024-11-17 08:49:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:11,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1153137093, now seen corresponding path program 1 times [2024-11-17 08:49:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:11,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115131393] [2024-11-17 08:49:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:11,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:11,304 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:11,305 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:11,305 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:11,305 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:11,305 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:11,305 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,305 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:11,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:11,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-17 08:49:11,306 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:11,306 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:11,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,406 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:11,407 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:11,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:11,412 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) [2024-11-17 08:49:11,414 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 [2024-11-17 08:49:11,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:11,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:11,432 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:11,432 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:11,443 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 [2024-11-17 08:49:11,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:11,445 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) [2024-11-17 08:49:11,446 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 [2024-11-17 08:49:11,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:11,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:11,478 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 [2024-11-17 08:49:11,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:11,481 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) [2024-11-17 08:49:11,482 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 [2024-11-17 08:49:11,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:11,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:11,857 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:49:11,863 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 [2024-11-17 08:49:11,864 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:11,864 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:11,864 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:11,864 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:11,864 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:11,864 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,864 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:11,864 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:11,864 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-17 08:49:11,865 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:11,865 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:11,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:11,919 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:11,923 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:11,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:11,927 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) [2024-11-17 08:49:11,929 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 [2024-11-17 08:49:11,930 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 [2024-11-17 08:49:11,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:11,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:11,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:11,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:11,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:11,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:11,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:11,951 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:49:11,967 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 [2024-11-17 08:49:11,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:11,970 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) [2024-11-17 08:49:11,972 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 [2024-11-17 08:49:11,973 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 [2024-11-17 08:49:11,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:11,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:11,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:11,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:11,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:11,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:11,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:11,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:11,997 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:49:11,997 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:49:11,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:11,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:12,021 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) [2024-11-17 08:49:12,023 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 [2024-11-17 08:49:12,024 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:12,024 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:49:12,024 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:12,025 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2024-11-17 08:49:12,040 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 [2024-11-17 08:49:12,043 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:49:12,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:12,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:49:12,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:12,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:49:12,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:12,246 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 [2024-11-17 08:49:12,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-17 08:49:12,261 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 [2024-11-17 08:49:12,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 35 states and 43 transitions. Complement of second has 16 states. [2024-11-17 08:49:12,386 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 [2024-11-17 08:49:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-17 08:49:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-11-17 08:49:12,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-17 08:49:12,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:12,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-17 08:49:12,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:12,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-17 08:49:12,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:12,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-11-17 08:49:12,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:12,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2024-11-17 08:49:12,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-17 08:49:12,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-17 08:49:12,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-11-17 08:49:12,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:12,405 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-17 08:49:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-11-17 08:49:12,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-17 08:49:12,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2024-11-17 08:49:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-17 08:49:12,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-17 08:49:12,427 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-17 08:49:12,428 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:49:12,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-17 08:49:12,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:12,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:12,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:12,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:49:12,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:49:12,430 INFO L745 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRY 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(15, 2);call #Ultimate.allocInit(12, 3); 110#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 114#L28-1 call main_#t~ret7#1 := f91(main_~x~0#1);< 118#f91ENTRY ~x := #in~x; 121#L18 assume !(~x > 100); 112#L21-3 call #t~ret4 := f91(11 + ~x);< 120#f91ENTRY ~x := #in~x; 122#L18 assume ~x > 100;#res := ~x - 10; 123#f91FINAL assume true; 111#f91EXIT >#24#return; 113#L21-2 [2024-11-17 08:49:12,430 INFO L747 eck$LassoCheckResult]: Loop: 113#L21-2 call #t~ret5 := f91(#t~ret4);< 119#f91ENTRY ~x := #in~x; 125#L18 assume !(~x > 100); 116#L21-3 call #t~ret4 := f91(11 + ~x);< 119#f91ENTRY ~x := #in~x; 125#L18 assume ~x > 100;#res := ~x - 10; 117#f91FINAL assume true; 124#f91EXIT >#24#return; 113#L21-2 [2024-11-17 08:49:12,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash 590804261, now seen corresponding path program 1 times [2024-11-17 08:49:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:12,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086566159] [2024-11-17 08:49:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:12,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:12,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1180657404, now seen corresponding path program 1 times [2024-11-17 08:49:12,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:12,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753869774] [2024-11-17 08:49:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:12,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:12,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:12,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1632490968, now seen corresponding path program 1 times [2024-11-17 08:49:12,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:12,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837230414] [2024-11-17 08:49:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:12,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:12,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:12,659 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:12,660 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:12,660 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:12,660 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:12,660 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:12,660 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:12,660 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:12,661 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:12,661 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-17 08:49:12,661 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:12,661 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:12,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:12,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:12,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:12,726 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:12,727 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:12,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:12,729 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) [2024-11-17 08:49:12,731 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 [2024-11-17 08:49:12,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:12,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:12,748 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:12,749 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:12,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-17 08:49:12,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:12,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:12,771 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) [2024-11-17 08:49:12,773 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 [2024-11-17 08:49:12,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:12,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:12,792 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:12,792 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:12,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:12,810 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) [2024-11-17 08:49:12,811 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 [2024-11-17 08:49:12,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:12,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:12,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-17 08:49:12,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:12,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:12,850 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) [2024-11-17 08:49:12,851 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 [2024-11-17 08:49:12,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:12,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:24,894 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-11-17 08:49:24,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:24,906 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:24,906 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:24,906 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:24,906 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:24,907 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:24,907 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:24,907 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:24,907 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:24,907 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-17 08:49:24,907 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:24,907 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:24,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:24,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:24,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:24,964 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:24,964 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:24,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:24,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:24,966 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:24,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:49:24,969 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 [2024-11-17 08:49:24,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:24,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:24,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:24,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:24,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:24,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:24,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:24,986 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:24,990 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:49:24,990 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:49:24,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:24,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:24,992 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) [2024-11-17 08:49:24,993 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 [2024-11-17 08:49:24,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:24,993 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:49:24,993 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:24,993 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-17 08:49:25,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:25,005 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:49:25,010 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-17 08:49:25,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:25,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:49:25,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:25,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 08:49:25,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:25,282 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-17 08:49:25,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-17 08:49:25,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 51 states and 73 transitions. Complement of second has 32 states. [2024-11-17 08:49:25,464 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 [2024-11-17 08:49:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-17 08:49:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-17 08:49:25,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-17 08:49:25,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:25,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:49:25,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:25,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2024-11-17 08:49:25,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:25,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2024-11-17 08:49:25,472 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-17 08:49:25,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2024-11-17 08:49:25,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-17 08:49:25,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-17 08:49:25,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2024-11-17 08:49:25,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:25,479 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2024-11-17 08:49:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2024-11-17 08:49:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-17 08:49:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 10 states have call successors, (13), 7 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-17 08:49:25,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-11-17 08:49:25,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-17 08:49:25,489 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-17 08:49:25,489 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:49:25,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-11-17 08:49:25,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-17 08:49:25,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:25,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:25,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:49:25,492 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:49:25,492 INFO L745 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY 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(15, 2);call #Ultimate.allocInit(12, 3); 295#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 296#L28-1 call main_#t~ret7#1 := f91(main_~x~0#1);< 304#f91ENTRY ~x := #in~x; 313#L18 assume !(~x > 100); 309#L21-3 call #t~ret4 := f91(11 + ~x);< 312#f91ENTRY ~x := #in~x; 315#L18 assume ~x > 100;#res := ~x - 10; 319#f91FINAL assume true; 320#f91EXIT >#24#return; 299#L21-2 call #t~ret5 := f91(#t~ret4);< 317#f91ENTRY ~x := #in~x; 329#L18 assume !(~x > 100); 310#L21-3 [2024-11-17 08:49:25,492 INFO L747 eck$LassoCheckResult]: Loop: 310#L21-3 call #t~ret4 := f91(11 + ~x);< 311#f91ENTRY ~x := #in~x; 322#L18 assume !(~x > 100); 310#L21-3 [2024-11-17 08:49:25,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:25,492 INFO L85 PathProgramCache]: Analyzing trace with hash -126218833, now seen corresponding path program 2 times [2024-11-17 08:49:25,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:25,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527820434] [2024-11-17 08:49:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:25,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:25,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:25,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:25,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:25,513 INFO L85 PathProgramCache]: Analyzing trace with hash 52437, now seen corresponding path program 2 times [2024-11-17 08:49:25,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:25,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137543188] [2024-11-17 08:49:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:25,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:25,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:25,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:25,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2088847257, now seen corresponding path program 3 times [2024-11-17 08:49:25,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:25,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555897850] [2024-11-17 08:49:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:25,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:25,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 08:49:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 08:49:25,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:49:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555897850] [2024-11-17 08:49:25,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555897850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:49:25,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:49:25,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 08:49:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654862191] [2024-11-17 08:49:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:49:25,770 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:25,773 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:25,773 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:25,773 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:25,773 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:25,773 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:25,773 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:25,773 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:25,774 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-17 08:49:25,774 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:25,774 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:25,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:25,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:25,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:25,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:25,817 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:25,818 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:25,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:25,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:25,821 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) [2024-11-17 08:49:25,822 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 [2024-11-17 08:49:25,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:25,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:25,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:25,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:25,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:25,855 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) [2024-11-17 08:49:25,855 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 [2024-11-17 08:49:25,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:25,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:37,891 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-11-17 08:49:37,900 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 [2024-11-17 08:49:37,901 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:37,901 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:37,901 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:37,901 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:37,901 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:37,901 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:37,901 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:37,901 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:37,901 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-17 08:49:37,901 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:37,901 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:37,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:37,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:37,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:37,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:37,942 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:37,943 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:37,945 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) [2024-11-17 08:49:37,947 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 [2024-11-17 08:49:37,950 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 [2024-11-17 08:49:37,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:37,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:37,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:37,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:37,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:37,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:37,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:37,967 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:49:37,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-17 08:49:37,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:37,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:37,984 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) [2024-11-17 08:49:37,986 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 [2024-11-17 08:49:37,987 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 [2024-11-17 08:49:37,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:38,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:38,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:38,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:38,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:38,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:38,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:38,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:38,007 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:49:38,007 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:49:38,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:38,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:38,011 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) [2024-11-17 08:49:38,012 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 [2024-11-17 08:49:38,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:38,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:49:38,013 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:38,013 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2024-11-17 08:49:38,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:49:38,025 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:49:38,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,127 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 [2024-11-17 08:49:38,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:49:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:38,282 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 [2024-11-17 08:49:38,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-11-17 08:49:38,351 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 [2024-11-17 08:49:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-17 08:49:38,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:49:38,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:38,353 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:38,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:38,502 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 [2024-11-17 08:49:38,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-11-17 08:49:38,568 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 [2024-11-17 08:49:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-17 08:49:38,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:49:38,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:38,569 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:38,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:38,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:49:38,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:38,717 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 [2024-11-17 08:49:38,717 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 71 states and 100 transitions. Complement of second has 16 states. [2024-11-17 08:49:38,798 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 [2024-11-17 08:49:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-11-17 08:49:38,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:49:38,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:38,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-17 08:49:38,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:38,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-17 08:49:38,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:38,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2024-11-17 08:49:38,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:49:38,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2024-11-17 08:49:38,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-17 08:49:38,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-17 08:49:38,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2024-11-17 08:49:38,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:38,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2024-11-17 08:49:38,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2024-11-17 08:49:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2024-11-17 08:49:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 11 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-17 08:49:38,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-11-17 08:49:38,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-11-17 08:49:38,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:49:38,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 08:49:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-17 08:49:38,818 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 08:49:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:49:38,921 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2024-11-17 08:49:38,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2024-11-17 08:49:38,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-17 08:49:38,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2024-11-17 08:49:38,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-17 08:49:38,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-17 08:49:38,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2024-11-17 08:49:38,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:38,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-11-17 08:49:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2024-11-17 08:49:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-17 08:49:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 13 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (19), 8 states have call predecessors, (19), 11 states have call successors, (19) [2024-11-17 08:49:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2024-11-17 08:49:38,935 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-17 08:49:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 08:49:38,936 INFO L425 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-17 08:49:38,937 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:49:38,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2024-11-17 08:49:38,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-17 08:49:38,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:38,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:38,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 08:49:38,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-17 08:49:38,939 INFO L745 eck$LassoCheckResult]: Stem: 835#ULTIMATE.startENTRY 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(15, 2);call #Ultimate.allocInit(12, 3); 836#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 844#L28-1 call main_#t~ret7#1 := f91(main_~x~0#1);< 850#f91ENTRY ~x := #in~x; 876#L18 assume !(~x > 100); 869#L21-3 call #t~ret4 := f91(11 + ~x);< 871#f91ENTRY ~x := #in~x; 874#L18 assume !(~x > 100); 868#L21-3 call #t~ret4 := f91(11 + ~x);< 872#f91ENTRY ~x := #in~x; 875#L18 assume ~x > 100;#res := ~x - 10; 873#f91FINAL assume true; 870#f91EXIT >#24#return; 847#L21-2 call #t~ret5 := f91(#t~ret4);< 861#f91ENTRY ~x := #in~x; 889#L18 assume ~x > 100;#res := ~x - 10; 887#f91FINAL assume true; 885#f91EXIT >#22#return; 840#L21-1 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 882#f91FINAL assume true; 881#f91EXIT >#24#return; 838#L21-2 call #t~ret5 := f91(#t~ret4);< 878#f91ENTRY [2024-11-17 08:49:38,940 INFO L747 eck$LassoCheckResult]: Loop: 878#f91ENTRY ~x := #in~x; 877#L18 assume !(~x > 100); 854#L21-3 call #t~ret4 := f91(11 + ~x);< 856#f91ENTRY ~x := #in~x; 858#L18 assume !(~x > 100); 853#L21-3 call #t~ret4 := f91(11 + ~x);< 855#f91ENTRY ~x := #in~x; 857#L18 assume ~x > 100;#res := ~x - 10; 864#f91FINAL assume true; 891#f91EXIT >#24#return; 848#L21-2 call #t~ret5 := f91(#t~ret4);< 859#f91ENTRY ~x := #in~x; 879#L18 assume ~x > 100;#res := ~x - 10; 880#f91FINAL assume true; 883#f91EXIT >#22#return; 840#L21-1 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 882#f91FINAL assume true; 881#f91EXIT >#24#return; 839#L21-2 call #t~ret5 := f91(#t~ret4);< 878#f91ENTRY [2024-11-17 08:49:38,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1368746910, now seen corresponding path program 1 times [2024-11-17 08:49:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:38,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5854462] [2024-11-17 08:49:38,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:38,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:38,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:38,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash -77812524, now seen corresponding path program 1 times [2024-11-17 08:49:38,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:38,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545487289] [2024-11-17 08:49:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:38,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:38,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:39,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:39,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1527524653, now seen corresponding path program 2 times [2024-11-17 08:49:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:39,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31589401] [2024-11-17 08:49:39,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:39,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 08:49:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 08:49:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-17 08:49:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 08:49:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 08:49:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-17 08:49:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-17 08:49:39,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:49:39,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31589401] [2024-11-17 08:49:39,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31589401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:49:39,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178282573] [2024-11-17 08:49:39,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 08:49:39,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:49:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:39,273 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:49:39,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-17 08:49:39,321 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 08:49:39,322 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 08:49:39,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 08:49:39,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-17 08:49:39,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:49:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-17 08:49:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178282573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:49:39,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:49:39,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2024-11-17 08:49:39,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962184423] [2024-11-17 08:49:39,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:49:39,817 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:39,817 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:39,817 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:39,817 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:39,818 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:39,818 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,818 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:39,818 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:39,818 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-17 08:49:39,818 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:39,818 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:39,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,859 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:39,859 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:39,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:39,862 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) [2024-11-17 08:49:39,863 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 [2024-11-17 08:49:39,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:39,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:39,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:39,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:39,898 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) [2024-11-17 08:49:39,898 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 [2024-11-17 08:49:39,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:39,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:39,913 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:49:39,926 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 [2024-11-17 08:49:39,926 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:39,926 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:39,926 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:39,926 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:39,926 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:39,926 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,926 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:39,926 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:39,926 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-17 08:49:39,927 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:39,927 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:39,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:39,966 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:39,967 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:39,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:39,969 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) [2024-11-17 08:49:39,970 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 [2024-11-17 08:49:39,971 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 [2024-11-17 08:49:39,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:39,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:39,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:39,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:39,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:39,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:39,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:39,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:39,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:49:39,992 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:49:39,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:39,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:39,994 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) [2024-11-17 08:49:39,996 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 [2024-11-17 08:49:39,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:39,996 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:49:39,997 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:39,997 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2024-11-17 08:49:40,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-17 08:49:40,017 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:49:40,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:40,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 08:49:40,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:40,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:40,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 08:49:40,424 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 9 loop predicates [2024-11-17 08:49:40,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-17 08:49:40,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 39 states. [2024-11-17 08:49:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-17 08:49:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-17 08:49:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 35 transitions. [2024-11-17 08:49:40,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-17 08:49:40,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:40,762 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:40,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:40,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 08:49:40,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:40,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-17 08:49:40,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:41,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 08:49:41,222 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 10 loop predicates [2024-11-17 08:49:41,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 08:49:41,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 49 states. [2024-11-17 08:49:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 2 stem states 12 non-accepting loop states 1 accepting loop states [2024-11-17 08:49:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 08:49:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-17 08:49:41,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-17 08:49:41,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:41,597 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:41,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:41,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 08:49:41,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:41,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:41,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 08:49:41,953 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 9 loop predicates [2024-11-17 08:49:41,953 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-17 08:49:42,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 325 states and 417 transitions. Complement of second has 131 states. [2024-11-17 08:49:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 19 states 2 stem states 16 non-accepting loop states 1 accepting loop states [2024-11-17 08:49:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-17 08:49:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 50 transitions. [2024-11-17 08:49:42,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-17 08:49:42,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:42,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2024-11-17 08:49:42,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:42,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2024-11-17 08:49:42,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:42,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 417 transitions. [2024-11-17 08:49:42,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2024-11-17 08:49:42,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 169 states and 230 transitions. [2024-11-17 08:49:42,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2024-11-17 08:49:42,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-11-17 08:49:42,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 230 transitions. [2024-11-17 08:49:42,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:42,534 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 230 transitions. [2024-11-17 08:49:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 230 transitions. [2024-11-17 08:49:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2024-11-17 08:49:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 86 states have (on average 1.0813953488372092) internal successors, (93), 88 states have internal predecessors, (93), 32 states have call successors, (42), 26 states have call predecessors, (42), 22 states have return successors, (43), 25 states have call predecessors, (43), 28 states have call successors, (43) [2024-11-17 08:49:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2024-11-17 08:49:42,557 INFO L240 hiAutomatonCegarLoop]: Abstraction has 140 states and 178 transitions. [2024-11-17 08:49:42,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:49:42,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 08:49:42,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-17 08:49:42,571 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand has 17 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 8 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-17 08:49:42,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:49:42,762 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2024-11-17 08:49:42,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 163 transitions. [2024-11-17 08:49:42,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:42,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 101 states and 121 transitions. [2024-11-17 08:49:42,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2024-11-17 08:49:42,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2024-11-17 08:49:42,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 121 transitions. [2024-11-17 08:49:42,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:49:42,767 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 121 transitions. [2024-11-17 08:49:42,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 121 transitions. [2024-11-17 08:49:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2024-11-17 08:49:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.05) internal successors, (63), 61 states have internal predecessors, (63), 22 states have call successors, (29), 19 states have call predecessors, (29), 15 states have return successors, (25), 16 states have call predecessors, (25), 18 states have call successors, (25) [2024-11-17 08:49:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2024-11-17 08:49:42,773 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-11-17 08:49:42,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 08:49:42,774 INFO L425 stractBuchiCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-11-17 08:49:42,774 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:49:42,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 117 transitions. [2024-11-17 08:49:42,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:49:42,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:49:42,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:49:42,776 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-17 08:49:42,776 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:49:42,776 INFO L745 eck$LassoCheckResult]: Stem: 2762#ULTIMATE.startENTRY 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(15, 2);call #Ultimate.allocInit(12, 3); 2763#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2764#L28-1 call main_#t~ret7#1 := f91(main_~x~0#1);< 2773#f91ENTRY ~x := #in~x; 2797#L18 assume !(~x > 100); 2788#L21-3 call #t~ret4 := f91(11 + ~x);< 2787#f91ENTRY ~x := #in~x; 2790#L18 assume !(~x > 100); 2789#L21-3 call #t~ret4 := f91(11 + ~x);< 2821#f91ENTRY ~x := #in~x; 2824#L18 assume ~x > 100;#res := ~x - 10; 2823#f91FINAL assume true; 2822#f91EXIT >#24#return; 2818#L21-2 call #t~ret5 := f91(#t~ret4);< 2820#f91ENTRY ~x := #in~x; 2826#L18 assume ~x > 100;#res := ~x - 10; 2825#f91FINAL assume true; 2817#f91EXIT >#22#return; 2815#L21-1 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 2813#f91FINAL assume true; 2812#f91EXIT >#24#return; 2806#L21-2 call #t~ret5 := f91(#t~ret4);< 2811#f91ENTRY ~x := #in~x; 2809#L18 assume !(~x > 100); 2781#L21-3 call #t~ret4 := f91(11 + ~x);< 2808#f91ENTRY ~x := #in~x; 2841#L18 assume ~x > 100;#res := ~x - 10; 2840#f91FINAL assume true; 2837#f91EXIT >#24#return; 2833#L21-2 call #t~ret5 := f91(#t~ret4);< 2835#f91ENTRY ~x := #in~x; 2838#L18 assume !(~x > 100); 2839#L21-3 call #t~ret4 := f91(11 + ~x);< 2780#f91ENTRY ~x := #in~x; 2853#L18 assume ~x > 100;#res := ~x - 10; 2852#f91FINAL assume true; 2848#f91EXIT >#24#return; 2777#L21-2 call #t~ret5 := f91(#t~ret4);< 2847#f91ENTRY [2024-11-17 08:49:42,776 INFO L747 eck$LassoCheckResult]: Loop: 2847#f91ENTRY ~x := #in~x; 2850#L18 assume !(~x > 100); 2849#L21-3 call #t~ret4 := f91(11 + ~x);< 2780#f91ENTRY ~x := #in~x; 2853#L18 assume ~x > 100;#res := ~x - 10; 2852#f91FINAL assume true; 2848#f91EXIT >#24#return; 2776#L21-2 call #t~ret5 := f91(#t~ret4);< 2847#f91ENTRY [2024-11-17 08:49:42,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1550656996, now seen corresponding path program 3 times [2024-11-17 08:49:42,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:42,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246081698] [2024-11-17 08:49:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:42,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:42,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:42,810 INFO L85 PathProgramCache]: Analyzing trace with hash -254776738, now seen corresponding path program 2 times [2024-11-17 08:49:42,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:42,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940044424] [2024-11-17 08:49:42,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:42,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:42,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash -870254215, now seen corresponding path program 4 times [2024-11-17 08:49:42,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:49:42,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592355382] [2024-11-17 08:49:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:49:42,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:49:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:49:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:49:42,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:49:42,928 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:42,929 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:42,929 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:42,929 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:42,929 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:49:42,929 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:42,929 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:42,929 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:42,929 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-17 08:49:42,929 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:42,930 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:42,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:42,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:42,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:42,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:42,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:42,965 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:42,965 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:49:42,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:42,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:42,968 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:49:42,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-17 08:49:42,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:42,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:42,984 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:42,984 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:42,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-17 08:49:42,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:42,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,001 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) [2024-11-17 08:49:43,002 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 [2024-11-17 08:49:43,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:43,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:43,016 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:49:43,016 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:49:43,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:43,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,028 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) [2024-11-17 08:49:43,029 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 [2024-11-17 08:49:43,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:49:43,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:43,055 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 [2024-11-17 08:49:43,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,056 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) [2024-11-17 08:49:43,057 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 [2024-11-17 08:49:43,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:49:43,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:49:43,071 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:49:43,084 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 [2024-11-17 08:49:43,084 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:49:43,085 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:49:43,085 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:49:43,085 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:49:43,085 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:49:43,085 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,085 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:49:43,085 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:49:43,085 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-17 08:49:43,085 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:49:43,085 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:49:43,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:43,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:43,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:43,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:43,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:49:43,124 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:49:43,124 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:49:43,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,126 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) [2024-11-17 08:49:43,131 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 [2024-11-17 08:49:43,135 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 [2024-11-17 08:49:43,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:43,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:43,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:43,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:43,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:43,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:43,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:43,147 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:49:43,161 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 [2024-11-17 08:49:43,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,163 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) [2024-11-17 08:49:43,165 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 [2024-11-17 08:49:43,165 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 [2024-11-17 08:49:43,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:43,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:43,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:43,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:43,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:43,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:43,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:43,181 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:49:43,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:43,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,198 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) [2024-11-17 08:49:43,199 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 [2024-11-17 08:49:43,200 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 [2024-11-17 08:49:43,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:43,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:43,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:43,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:43,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:43,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:43,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:43,217 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:49:43,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-17 08:49:43,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,234 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) [2024-11-17 08:49:43,236 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 [2024-11-17 08:49:43,237 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 [2024-11-17 08:49:43,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:49:43,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:49:43,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:49:43,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:49:43,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:49:43,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:49:43,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:49:43,254 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:49:43,257 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:49:43,257 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:49:43,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:49:43,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:49:43,260 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) [2024-11-17 08:49:43,261 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 [2024-11-17 08:49:43,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:49:43,262 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:49:43,262 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:49:43,262 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2024-11-17 08:49:43,278 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 [2024-11-17 08:49:43,278 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:49:43,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:43,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:43,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:43,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 08:49:43,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:43,651 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-17 08:49:43,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:43,751 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 107 states and 127 transitions. Complement of second has 16 states. [2024-11-17 08:49:43,752 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 [2024-11-17 08:49:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2024-11-17 08:49:43,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-17 08:49:43,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:43,753 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:43,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:43,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:43,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:43,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-17 08:49:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:44,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 08:49:44,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:44,129 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-17 08:49:44,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:44,313 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 125 states and 146 transitions. Complement of second has 28 states. [2024-11-17 08:49:44,314 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 [2024-11-17 08:49:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 20 transitions. [2024-11-17 08:49:44,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 20 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-17 08:49:44,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:44,315 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:44,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:44,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:44,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:44,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 08:49:44,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:44,661 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 7 loop predicates [2024-11-17 08:49:44,661 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:44,761 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 147 states and 167 transitions. Complement of second has 17 states. [2024-11-17 08:49:44,764 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 [2024-11-17 08:49:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-11-17 08:49:44,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-17 08:49:44,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:44,765 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:49:44,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:49:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:44,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 08:49:44,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:49:45,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 08:49:45,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:49:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:49:45,103 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-17 08:49:45,103 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:45,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 182 states and 209 transitions. Complement of second has 51 states. [2024-11-17 08:49:45,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-17 08:49:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-17 08:49:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 27 transitions. [2024-11-17 08:49:45,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-17 08:49:45,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:45,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 46 letters. Loop has 8 letters. [2024-11-17 08:49:45,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:45,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 16 letters. [2024-11-17 08:49:45,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:49:45,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 209 transitions. [2024-11-17 08:49:45,354 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:49:45,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 0 states and 0 transitions. [2024-11-17 08:49:45,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:49:45,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:49:45,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:49:45,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:49:45,354 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:45,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:45,354 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:49:45,354 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:49:45,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:49:45,355 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:49:45,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:49:45,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:49:45 BoogieIcfgContainer [2024-11-17 08:49:45,363 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:49:45,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:49:45,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:49:45,364 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:49:45,364 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:49:10" (3/4) ... [2024-11-17 08:49:45,367 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:49:45,368 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:49:45,368 INFO L158 Benchmark]: Toolchain (without parser) took 35067.97ms. Allocated memory was 165.7MB in the beginning and 207.6MB in the end (delta: 41.9MB). Free memory was 94.0MB in the beginning and 125.9MB in the end (delta: -31.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,369 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:49:45,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.07ms. Allocated memory is still 165.7MB. Free memory was 93.9MB in the beginning and 82.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 165.7MB. Free memory was 82.1MB in the beginning and 80.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,369 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 165.7MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,369 INFO L158 Benchmark]: IcfgBuilder took 282.06ms. Allocated memory is still 165.7MB. Free memory was 79.2MB in the beginning and 130.7MB in the end (delta: -51.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,370 INFO L158 Benchmark]: BuchiAutomizer took 34455.87ms. Allocated memory was 165.7MB in the beginning and 207.6MB in the end (delta: 41.9MB). Free memory was 130.7MB in the beginning and 126.9MB in the end (delta: 3.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,370 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 207.6MB. Free memory was 126.9MB in the beginning and 125.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:49:45,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.07ms. Allocated memory is still 165.7MB. Free memory was 93.9MB in the beginning and 82.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 165.7MB. Free memory was 82.1MB in the beginning and 80.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 165.7MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 282.06ms. Allocated memory is still 165.7MB. Free memory was 79.2MB in the beginning and 130.7MB in the end (delta: -51.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 34455.87ms. Allocated memory was 165.7MB in the beginning and 207.6MB in the end (delta: 41.9MB). Free memory was 130.7MB in the beginning and 126.9MB in the end (delta: 3.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 207.6MB. Free memory was 126.9MB in the beginning and 125.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function (211 + ((long long) -2 * \old(x))) and consists of 5 locations. One deterministic module has affine ranking function null and consists of 8 locations. One nondeterministic module has affine ranking function (((long long) -2 * x) + 189) and consists of 6 locations. One nondeterministic module has affine ranking function (((long long) -1 * \old(x)) + 90) and consists of 19 locations. One nondeterministic module has affine ranking function (((long long) -2 * \old(x)) + 201) and consists of 12 locations. 2 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.3s and 6 iterations. TraceHistogramMax:8. Analysis of lassos took 27.7s. Construction of modules took 0.7s. Büchi inclusion checks took 5.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 48 StatesRemovedByMinimization, 6 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, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 424 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 910 IncrementalHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 208 mSolverCounterUnsat, 184 mSDtfsCounter, 910 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf91 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 24.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:49:45,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-17 08:49:45,593 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