./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/McCarthy91-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:51:00,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:51:00,360 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 02:51:00,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:51:00,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:51:00,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:51:00,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:51:00,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:51:00,393 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:51:00,393 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:51:00,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:51:00,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:51:00,394 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:51:00,394 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:51:00,394 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:51:00,395 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:51:00,395 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:51:00,395 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:51:00,396 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:51:00,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:51:00,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:51:00,396 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:51:00,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:51:00,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:51:00,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:51:00,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:51:00,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:51:00,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:51:00,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:51:00,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:51:00,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:51:00,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:51:00,399 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:51:00,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:51:00,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:51:00,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:51:00,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:51:00,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:51:00,401 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:51:00,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2024-11-23 02:51:00,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:51:00,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:51:00,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:51:00,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:51:00,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:51:00,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2024-11-23 02:51:02,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:51:02,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:51:02,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2024-11-23 02:51:02,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01503aa09/affa26b76be3478aa862f8a43bdd9012/FLAG1d90d2deb [2024-11-23 02:51:02,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01503aa09/affa26b76be3478aa862f8a43bdd9012 [2024-11-23 02:51:02,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:51:02,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:51:02,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:51:02,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:51:02,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:51:02,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488016d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02, skipping insertion in model container [2024-11-23 02:51:02,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:51:02,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:51:02,731 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:51:02,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:51:02,757 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:51:02,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02 WrapperNode [2024-11-23 02:51:02,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:51:02,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:51:02,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:51:02,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:51:02,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,781 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-23 02:51:02,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:51:02,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:51:02,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:51:02,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:51:02,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,800 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]. [2024-11-23 02:51:02,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:51:02,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:51:02,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:51:02,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:51:02,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2024-11-23 02:51:02,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:02,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:02,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:02,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:51:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:51:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:51:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:51:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:51:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2024-11-23 02:51:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2024-11-23 02:51:02,932 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:51:02,934 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:51:03,021 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-23 02:51:03,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:51:03,031 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:51:03,031 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 02:51:03,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:03 BoogieIcfgContainer [2024-11-23 02:51:03,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:51:03,033 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:51:03,034 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:51:03,037 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:51:03,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:51:03,038 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:51:02" (1/3) ... [2024-11-23 02:51:03,039 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2542e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:51:03, skipping insertion in model container [2024-11-23 02:51:03,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:51:03,039 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (2/3) ... [2024-11-23 02:51:03,039 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2542e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:51:03, skipping insertion in model container [2024-11-23 02:51:03,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:51:03,040 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:03" (3/3) ... [2024-11-23 02:51:03,041 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-1.c [2024-11-23 02:51:03,166 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:51:03,167 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:51:03,167 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:51:03,167 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:51:03,168 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:51:03,168 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:51:03,168 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:51:03,169 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:51:03,173 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) [2024-11-23 02:51:03,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 02:51:03,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:03,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:03,195 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:51:03,195 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:51:03,196 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:51:03,196 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) [2024-11-23 02:51:03,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 02:51:03,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:03,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:03,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:51:03,199 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:51:03,212 INFO L745 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 14#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 12#$Ultimate##0true [2024-11-23 02:51:03,213 INFO L747 eck$LassoCheckResult]: Loop: 12#$Ultimate##0true ~x := #in~x; 8#L18true assume !(~x > 100); 10#L21true call #t~ret4 := f91(11 + ~x);< 12#$Ultimate##0true [2024-11-23 02:51:03,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash 29879, now seen corresponding path program 1 times [2024-11-23 02:51:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:03,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439746669] [2024-11-23 02:51:03,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:03,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:03,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash 46807, now seen corresponding path program 1 times [2024-11-23 02:51:03,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:03,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318065222] [2024-11-23 02:51:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:03,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:03,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash 890142305, now seen corresponding path program 1 times [2024-11-23 02:51:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272064798] [2024-11-23 02:51:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:03,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:03,580 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:03,581 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:03,581 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:03,581 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:03,581 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:51:03,582 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,582 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:03,582 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:03,582 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2024-11-23 02:51:03,582 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:03,582 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:03,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,662 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:03,662 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:51:03,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:03,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:03,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 02:51:03,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:03,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:03,695 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:51:03,695 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:51:03,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:03,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:03,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:03,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 02:51:03,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:03,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:03,726 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 [2024-11-23 02:51:03,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:03,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:03,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 02:51:03,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:51:03,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:03,863 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:51:03,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:03,871 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:03,871 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:03,871 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:03,871 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:03,871 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:51:03,871 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,871 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:03,871 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:03,871 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2024-11-23 02:51:03,871 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:03,871 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:03,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:03,919 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:03,922 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:51:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:03,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:03,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 02:51:03,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:03,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:03,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:03,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:03,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:03,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:03,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:03,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:03,942 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:03,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:03,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:03,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:03,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 02:51:03,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:03,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:03,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:03,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:03,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:03,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:03,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:03,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:03,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:51:03,971 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:51:03,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:51:03,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:03,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:04,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:04,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 02:51:04,164 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:51:04,164 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:51:04,164 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:51:04,165 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2024-11-23 02:51:04,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:04,174 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:51:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:04,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:51:04,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:04,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:51:04,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:04,290 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 [2024-11-23 02:51:04,292 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) [2024-11-23 02:51:04,372 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. [2024-11-23 02:51:04,378 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 [2024-11-23 02:51:04,383 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) [2024-11-23 02:51:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-11-23 02:51:04,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-23 02:51:04,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:04,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-23 02:51:04,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:04,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-23 02:51:04,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:04,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-11-23 02:51:04,390 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 02:51:04,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2024-11-23 02:51:04,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-23 02:51:04,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-23 02:51:04,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-11-23 02:51:04,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:04,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-23 02:51:04,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-11-23 02:51:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-23 02:51:04,420 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) [2024-11-23 02:51:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-23 02:51:04,421 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-23 02:51:04,422 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-23 02:51:04,422 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:51:04,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-23 02:51:04,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 02:51:04,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:04,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:04,424 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:51:04,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-23 02:51:04,425 INFO L745 eck$LassoCheckResult]: Stem: 119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 113#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 112#$Ultimate##0 ~x := #in~x; 114#L18 assume !(~x > 100); 110#L21 call #t~ret4 := f91(11 + ~x);< 115#$Ultimate##0 ~x := #in~x; 116#L18 assume ~x > 100;#res := ~x - 10; 123#f91FINAL assume true; 109#f91EXIT >#29#return; 111#L21-1 [2024-11-23 02:51:04,425 INFO L747 eck$LassoCheckResult]: Loop: 111#L21-1 call #t~ret5 := f91(#t~ret4);< 118#$Ultimate##0 ~x := #in~x; 125#L18 assume !(~x > 100); 117#L21 call #t~ret4 := f91(11 + ~x);< 118#$Ultimate##0 ~x := #in~x; 125#L18 assume ~x > 100;#res := ~x - 10; 122#f91FINAL assume true; 124#f91EXIT >#29#return; 111#L21-1 [2024-11-23 02:51:04,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash -218206616, now seen corresponding path program 1 times [2024-11-23 02:51:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:04,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160127899] [2024-11-23 02:51:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:04,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:04,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 1 times [2024-11-23 02:51:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:04,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948425030] [2024-11-23 02:51:04,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:04,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1919740023, now seen corresponding path program 1 times [2024-11-23 02:51:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640668741] [2024-11-23 02:51:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:04,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:04,601 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:04,601 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:04,601 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:04,601 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:04,601 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:51:04,602 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:04,602 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:04,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:04,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2024-11-23 02:51:04,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:04,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:04,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:04,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:04,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:04,642 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:04,642 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:51:04,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:04,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:04,644 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:04,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 02:51:04,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:04,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:04,658 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:51:04,658 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:51:04,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:04,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:04,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 02:51:04,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:04,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:04,679 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:51:04,680 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:51:04,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 02:51:04,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:04,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:04,690 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:04,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 02:51:04,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:04,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:04,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-23 02:51:04,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:04,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:04,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 02:51:04,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:51:04,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:05,362 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:51:05,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-23 02:51:05,379 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:05,379 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:05,379 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:05,379 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:05,380 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:51:05,380 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:05,380 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:05,380 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:05,380 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2024-11-23 02:51:05,380 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:05,380 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:05,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:05,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:05,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:05,422 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:05,422 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:51:05,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:05,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:05,424 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:05,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 02:51:05,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:05,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:05,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:05,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:05,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:05,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:05,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:05,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:05,443 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:05,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-23 02:51:05,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:05,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:05,455 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:05,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 02:51:05,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:05,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:05,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:05,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:05,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:05,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:05,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:05,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:05,470 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:05,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:05,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:05,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:05,477 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:05,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 02:51:05,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:05,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:05,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:05,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:05,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:05,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:05,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:05,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:05,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:51:05,498 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:51:05,499 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:51:05,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:05,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:05,501 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:05,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 02:51:05,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:51:05,503 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:51:05,503 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:51:05,503 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-23 02:51:05,509 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 [2024-11-23 02:51:05,510 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:51:05,512 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-23 02:51:05,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 02:51:05,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:05,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:05,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 02:51:05,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:05,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 02:51:05,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:05,719 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 [2024-11-23 02:51:05,719 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) [2024-11-23 02:51:05,866 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. [2024-11-23 02:51:05,867 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 [2024-11-23 02:51:05,867 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) [2024-11-23 02:51:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 02:51:05,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-23 02:51:05,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:05,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-23 02:51:05,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:05,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2024-11-23 02:51:05,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:05,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2024-11-23 02:51:05,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-23 02:51:05,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2024-11-23 02:51:05,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-23 02:51:05,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-23 02:51:05,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2024-11-23 02:51:05,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:05,874 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2024-11-23 02:51:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2024-11-23 02:51:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-23 02:51:05,877 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) [2024-11-23 02:51:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-11-23 02:51:05,878 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-23 02:51:05,878 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-23 02:51:05,879 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:51:05,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-11-23 02:51:05,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-23 02:51:05,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:05,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:05,880 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:51:05,880 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:51:05,880 INFO L745 eck$LassoCheckResult]: Stem: 316#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 317#L-1 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; 311#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 315#$Ultimate##0 ~x := #in~x; 321#L18 assume !(~x > 100); 306#L21 call #t~ret4 := f91(11 + ~x);< 304#$Ultimate##0 ~x := #in~x; 308#L18 assume ~x > 100;#res := ~x - 10; 326#f91FINAL assume true; 325#f91EXIT >#29#return; 296#L21-1 call #t~ret5 := f91(#t~ret4);< 313#$Ultimate##0 ~x := #in~x; 328#L18 assume !(~x > 100); 302#L21 [2024-11-23 02:51:05,881 INFO L747 eck$LassoCheckResult]: Loop: 302#L21 call #t~ret4 := f91(11 + ~x);< 301#$Ultimate##0 ~x := #in~x; 303#L18 assume !(~x > 100); 302#L21 [2024-11-23 02:51:05,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1987218266, now seen corresponding path program 2 times [2024-11-23 02:51:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:05,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471604440] [2024-11-23 02:51:05,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:51:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:05,890 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:51:05,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:51:05,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:05,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:05,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 57247, now seen corresponding path program 2 times [2024-11-23 02:51:05,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:05,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931028896] [2024-11-23 02:51:05,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:51:05,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:05,900 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:51:05,900 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:51:05,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:05,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:05,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash -609818202, now seen corresponding path program 3 times [2024-11-23 02:51:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:05,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825440249] [2024-11-23 02:51:05,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:51:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:05,910 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 02:51:05,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:51:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 02:51:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:51:06,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825440249] [2024-11-23 02:51:06,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825440249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:51:06,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:51:06,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 02:51:06,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49794148] [2024-11-23 02:51:06,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:51:06,065 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:06,065 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:06,066 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:06,066 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:06,066 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:51:06,066 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,066 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:06,066 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:06,066 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2024-11-23 02:51:06,066 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:06,066 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:06,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,079 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,102 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:06,102 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:51:06,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:06,104 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:06,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-23 02:51:06,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:06,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:06,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-23 02:51:06,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:06,135 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) [2024-11-23 02:51:06,136 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 [2024-11-23 02:51:06,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:51:06,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:06,465 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:51:06,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:06,475 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:06,475 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:06,475 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:06,475 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:06,475 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:51:06,475 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,475 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:06,475 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:06,475 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2024-11-23 02:51:06,475 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:06,476 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:06,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:06,507 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:06,507 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:51:06,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:06,509 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:06,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 02:51:06,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:06,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:06,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:06,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:06,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:06,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:06,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:06,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:06,524 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:06,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-23 02:51:06,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:06,534 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:06,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 02:51:06,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:06,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:06,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:06,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:06,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:06,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:06,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:06,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:06,553 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:51:06,556 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:51:06,556 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:51:06,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:06,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:06,558 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:06,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 02:51:06,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:51:06,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:51:06,564 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:51:06,564 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2024-11-23 02:51:06,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-23 02:51:06,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:51:06,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:06,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 02:51:06,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:06,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:51:06,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:06,746 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 [2024-11-23 02:51:06,746 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) [2024-11-23 02:51:06,815 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. [2024-11-23 02:51:06,819 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 [2024-11-23 02:51:06,820 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) [2024-11-23 02:51:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-23 02:51:06,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 02:51:06,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:06,820 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:06,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:06,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 02:51:06,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:06,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:51:06,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:06,978 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 [2024-11-23 02:51:06,978 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) [2024-11-23 02:51:07,064 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. [2024-11-23 02:51:07,067 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 [2024-11-23 02:51:07,068 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) [2024-11-23 02:51:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-23 02:51:07,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 02:51:07,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:07,068 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:07,073 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Exception during sending of exit command (exit): Broken pipe [2024-11-23 02:51:07,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-23 02:51:07,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:07,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 02:51:07,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:07,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:51:07,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:07,171 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 [2024-11-23 02:51:07,171 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) [2024-11-23 02:51:07,227 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. [2024-11-23 02:51:07,227 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 [2024-11-23 02:51:07,228 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) [2024-11-23 02:51:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-11-23 02:51:07,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 02:51:07,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:07,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-23 02:51:07,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:07,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-23 02:51:07,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:07,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2024-11-23 02:51:07,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 02:51:07,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2024-11-23 02:51:07,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-23 02:51:07,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-23 02:51:07,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2024-11-23 02:51:07,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:07,233 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2024-11-23 02:51:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2024-11-23 02:51:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2024-11-23 02:51:07,236 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) [2024-11-23 02:51:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-11-23 02:51:07,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-11-23 02:51:07,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:51:07,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 02:51:07,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:51:07,240 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) [2024-11-23 02:51:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:51:07,312 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2024-11-23 02:51:07,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2024-11-23 02:51:07,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-23 02:51:07,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2024-11-23 02:51:07,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-23 02:51:07,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-23 02:51:07,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2024-11-23 02:51:07,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:07,316 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-11-23 02:51:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2024-11-23 02:51:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-23 02:51:07,319 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) [2024-11-23 02:51:07,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2024-11-23 02:51:07,320 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-23 02:51:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 02:51:07,321 INFO L425 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-23 02:51:07,321 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 02:51:07,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2024-11-23 02:51:07,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-23 02:51:07,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:07,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:07,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 02:51:07,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-23 02:51:07,323 INFO L745 eck$LassoCheckResult]: Stem: 849#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 845#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 848#$Ultimate##0 ~x := #in~x; 872#L18 assume !(~x > 100); 865#L21 call #t~ret4 := f91(11 + ~x);< 868#$Ultimate##0 ~x := #in~x; 869#L18 assume !(~x > 100); 864#L21 call #t~ret4 := f91(11 + ~x);< 867#$Ultimate##0 ~x := #in~x; 871#L18 assume ~x > 100;#res := ~x - 10; 870#f91FINAL assume true; 866#f91EXIT >#29#return; 839#L21-1 call #t~ret5 := f91(#t~ret4);< 838#$Ultimate##0 ~x := #in~x; 840#L18 assume ~x > 100;#res := ~x - 10; 857#f91FINAL assume true; 885#f91EXIT >#31#return; 834#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 884#f91FINAL assume true; 883#f91EXIT >#29#return; 832#L21-1 call #t~ret5 := f91(#t~ret4);< 846#$Ultimate##0 [2024-11-23 02:51:07,323 INFO L747 eck$LassoCheckResult]: Loop: 846#$Ultimate##0 ~x := #in~x; 875#L18 assume !(~x > 100); 842#L21 call #t~ret4 := f91(11 + ~x);< 841#$Ultimate##0 ~x := #in~x; 844#L18 assume !(~x > 100); 843#L21 call #t~ret4 := f91(11 + ~x);< 860#$Ultimate##0 ~x := #in~x; 881#L18 assume ~x > 100;#res := ~x - 10; 879#f91FINAL assume true; 877#f91EXIT >#29#return; 852#L21-1 call #t~ret5 := f91(#t~ret4);< 876#$Ultimate##0 ~x := #in~x; 873#L18 assume ~x > 100;#res := ~x - 10; 874#f91FINAL assume true; 886#f91EXIT >#31#return; 834#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 884#f91FINAL assume true; 883#f91EXIT >#29#return; 833#L21-1 call #t~ret5 := f91(#t~ret4);< 846#$Ultimate##0 [2024-11-23 02:51:07,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash -834951989, now seen corresponding path program 1 times [2024-11-23 02:51:07,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493133208] [2024-11-23 02:51:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:07,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:07,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:07,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:07,343 INFO L85 PathProgramCache]: Analyzing trace with hash -871747263, now seen corresponding path program 1 times [2024-11-23 02:51:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722121173] [2024-11-23 02:51:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:51:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:07,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:07,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:07,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 418853943, now seen corresponding path program 2 times [2024-11-23 02:51:07,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:07,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191209115] [2024-11-23 02:51:07,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:51:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:07,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:51:07,372 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:51:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-23 02:51:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:51:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191209115] [2024-11-23 02:51:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191209115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:51:07,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850238458] [2024-11-23 02:51:07,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:51:07,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:51:07,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:07,503 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:51:07,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-23 02:51:07,538 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:51:07,538 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:51:07,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 02:51:07,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-23 02:51:07,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:51:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-23 02:51:07,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850238458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:51:07,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:51:07,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-23 02:51:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673923317] [2024-11-23 02:51:07,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:51:07,905 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:07,905 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:07,905 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:07,905 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:07,905 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:51:07,905 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:07,905 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:07,905 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:07,906 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2024-11-23 02:51:07,906 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:07,906 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:07,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:07,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:07,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:07,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:07,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:07,939 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:07,939 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:51:07,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:07,940 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:07,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-23 02:51:07,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:07,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:07,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:07,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:07,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:07,977 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:07,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-23 02:51:07,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:51:07,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:07,995 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:51:08,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:08,004 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:08,005 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:08,005 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:08,005 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:08,005 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:51:08,005 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:08,005 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:08,005 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:08,005 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2024-11-23 02:51:08,005 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:08,005 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:08,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:08,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:08,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:08,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:08,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:08,037 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:08,037 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:51:08,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:08,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:08,040 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:08,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-23 02:51:08,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:08,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:08,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:08,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:08,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:08,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:08,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:08,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:08,056 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:51:08,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:51:08,058 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:51:08,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:08,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:08,062 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:08,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-23 02:51:08,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:51:08,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:51:08,066 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:51:08,066 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2024-11-23 02:51:08,072 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 [2024-11-23 02:51:08,073 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:51:08,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:08,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 02:51:08,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:08,303 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 [2024-11-23 02:51:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:08,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 02:51:08,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 02:51:08,589 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2024-11-23 02:51:08,589 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) [2024-11-23 02:51:08,989 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. [2024-11-23 02:51:08,990 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 [2024-11-23 02:51:08,990 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) [2024-11-23 02:51:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-23 02:51:08,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 02:51:08,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:08,991 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:08,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:09,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 02:51:09,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:09,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 02:51:09,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 02:51:09,313 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 [2024-11-23 02:51:09,313 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) [2024-11-23 02:51:09,597 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. [2024-11-23 02:51:09,598 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 [2024-11-23 02:51:09,598 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) [2024-11-23 02:51:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-23 02:51:09,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 02:51:09,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:09,599 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:09,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:09,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 02:51:09,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:09,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 02:51:09,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 02:51:10,149 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 10 loop predicates [2024-11-23 02:51:10,150 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) [2024-11-23 02:51:10,924 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 431 states and 531 transitions. Complement of second has 224 states. [2024-11-23 02:51:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 21 states 2 stem states 18 non-accepting loop states 1 accepting loop states [2024-11-23 02:51:10,925 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) [2024-11-23 02:51:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 50 transitions. [2024-11-23 02:51:10,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 02:51:10,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:10,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2024-11-23 02:51:10,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:10,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2024-11-23 02:51:10,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:10,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 531 transitions. [2024-11-23 02:51:10,935 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 29 [2024-11-23 02:51:10,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 203 states and 269 transitions. [2024-11-23 02:51:10,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2024-11-23 02:51:10,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2024-11-23 02:51:10,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 269 transitions. [2024-11-23 02:51:10,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:10,939 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 269 transitions. [2024-11-23 02:51:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 269 transitions. [2024-11-23 02:51:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 157. [2024-11-23 02:51:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 97 states have (on average 1.092783505154639) internal successors, (106), 99 states have internal predecessors, (106), 35 states have call successors, (45), 29 states have call predecessors, (45), 25 states have return successors, (47), 28 states have call predecessors, (47), 32 states have call successors, (47) [2024-11-23 02:51:10,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2024-11-23 02:51:10,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 198 transitions. [2024-11-23 02:51:10,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:51:10,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 02:51:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-23 02:51:10,953 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 15 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 8 states have internal predecessors, (22), 7 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 02:51:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:51:11,115 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2024-11-23 02:51:11,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 188 transitions. [2024-11-23 02:51:11,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-23 02:51:11,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 104 states and 123 transitions. [2024-11-23 02:51:11,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-11-23 02:51:11,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-11-23 02:51:11,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 123 transitions. [2024-11-23 02:51:11,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:51:11,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 123 transitions. [2024-11-23 02:51:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 123 transitions. [2024-11-23 02:51:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2024-11-23 02:51:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 64 states have internal predecessors, (66), 21 states have call successors, (28), 20 states have call predecessors, (28), 16 states have return successors, (25), 15 states have call predecessors, (25), 18 states have call successors, (25) [2024-11-23 02:51:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2024-11-23 02:51:11,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 119 transitions. [2024-11-23 02:51:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 02:51:11,135 INFO L425 stractBuchiCegarLoop]: Abstraction has 100 states and 119 transitions. [2024-11-23 02:51:11,135 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-23 02:51:11,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 119 transitions. [2024-11-23 02:51:11,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-23 02:51:11,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:51:11,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:51:11,137 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-23 02:51:11,137 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-23 02:51:11,137 INFO L745 eck$LassoCheckResult]: Stem: 2985#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 2986#L-1 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; 2983#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 2984#$Ultimate##0 ~x := #in~x; 2996#L18 assume !(~x > 100); 2976#L21 call #t~ret4 := f91(11 + ~x);< 2975#$Ultimate##0 ~x := #in~x; 2978#L18 assume !(~x > 100); 2977#L21 call #t~ret4 := f91(11 + ~x);< 3024#$Ultimate##0 ~x := #in~x; 3027#L18 assume ~x > 100;#res := ~x - 10; 3026#f91FINAL assume true; 3025#f91EXIT >#29#return; 3020#L21-1 call #t~ret5 := f91(#t~ret4);< 3022#$Ultimate##0 ~x := #in~x; 3041#L18 assume ~x > 100;#res := ~x - 10; 3028#f91FINAL assume true; 3019#f91EXIT >#31#return; 3018#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 3016#f91FINAL assume true; 3015#f91EXIT >#29#return; 3009#L21-1 call #t~ret5 := f91(#t~ret4);< 3014#$Ultimate##0 ~x := #in~x; 3012#L18 assume !(~x > 100); 2979#L21 call #t~ret4 := f91(11 + ~x);< 2999#$Ultimate##0 ~x := #in~x; 3017#L18 assume !(~x > 100); 2966#L21 call #t~ret4 := f91(11 + ~x);< 2973#$Ultimate##0 ~x := #in~x; 2974#L18 assume ~x > 100;#res := ~x - 10; 2995#f91FINAL assume true; 2965#f91EXIT >#29#return; 2967#L21-1 [2024-11-23 02:51:11,137 INFO L747 eck$LassoCheckResult]: Loop: 2967#L21-1 call #t~ret5 := f91(#t~ret4);< 2980#$Ultimate##0 ~x := #in~x; 3008#L18 assume !(~x > 100); 2997#L21 call #t~ret4 := f91(11 + ~x);< 2998#$Ultimate##0 ~x := #in~x; 3064#L18 assume ~x > 100;#res := ~x - 10; 3063#f91FINAL assume true; 3062#f91EXIT >#29#return; 2967#L21-1 [2024-11-23 02:51:11,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2083076242, now seen corresponding path program 3 times [2024-11-23 02:51:11,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:11,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495194416] [2024-11-23 02:51:11,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:51:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:11,149 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 02:51:11,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:51:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 02:51:11,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:51:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495194416] [2024-11-23 02:51:11,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495194416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:51:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526853313] [2024-11-23 02:51:11,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:51:11,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:51:11,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:11,242 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:51:11,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-23 02:51:11,268 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 02:51:11,268 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:51:11,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 02:51:11,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-23 02:51:11,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:51:11,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526853313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:51:11,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:51:11,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 9 [2024-11-23 02:51:11,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65917557] [2024-11-23 02:51:11,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:51:11,291 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-23 02:51:11,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 2 times [2024-11-23 02:51:11,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:51:11,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863517571] [2024-11-23 02:51:11,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:51:11,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:51:11,295 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:51:11,295 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:51:11,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:51:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:51:11,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:51:11,407 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:11,407 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:11,407 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:11,407 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:11,407 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:51:11,407 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:11,407 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:11,407 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:11,407 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2024-11-23 02:51:11,407 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:11,407 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:11,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:11,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:11,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:11,452 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:11,453 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:51:11,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:11,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:11,455 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:11,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-23 02:51:11,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:11,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:11,471 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:51:11,471 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:51:11,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:11,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:11,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:11,480 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:11,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-23 02:51:11,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:51:11,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:11,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:11,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:11,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:11,512 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:11,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-23 02:51:11,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:51:11,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:51:12,031 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:51:12,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:12,046 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:51:12,046 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:51:12,046 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:51:12,046 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:51:12,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:51:12,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:12,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:51:12,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:51:12,047 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2024-11-23 02:51:12,047 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:51:12,047 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:51:12,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:12,049 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:12,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:51:12,076 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:51:12,076 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:51:12,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:12,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:12,078 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) [2024-11-23 02:51:12,079 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 [2024-11-23 02:51:12,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:12,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:12,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:12,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:12,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:12,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:12,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:12,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:12,091 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:12,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:12,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:12,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:12,106 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:12,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-23 02:51:12,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:12,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:12,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:12,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:12,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:12,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:12,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:12,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:12,136 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:51:12,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:12,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:12,148 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:12,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-23 02:51:12,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:51:12,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:51:12,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:51:12,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:51:12,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:51:12,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:51:12,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:51:12,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:51:12,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:51:12,182 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:51:12,183 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:51:12,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:51:12,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:51:12,185 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:51:12,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-23 02:51:12,188 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:51:12,188 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:51:12,188 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:51:12,188 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-23 02:51:12,201 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 [2024-11-23 02:51:12,201 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:51:12,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-23 02:51:12,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:12,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:12,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 02:51:12,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:12,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 02:51:12,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:12,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:12,529 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 [2024-11-23 02:51:12,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:12,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 139 states and 161 transitions. Complement of second has 24 states. [2024-11-23 02:51:12,637 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 [2024-11-23 02:51:12,638 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 02:51:12,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 02:51:12,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:12,638 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:12,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:12,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 02:51:12,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:12,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 02:51:12,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:13,031 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 [2024-11-23 02:51:13,031 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:13,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 139 states and 161 transitions. Complement of second has 24 states. [2024-11-23 02:51:13,145 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 [2024-11-23 02:51:13,145 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 02:51:13,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 02:51:13,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:13,146 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 02:51:13,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:51:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:13,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 02:51:13,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:51:13,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 02:51:13,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:51:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:51:13,399 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 [2024-11-23 02:51:13,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:13,522 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 181 states and 211 transitions. Complement of second has 27 states. [2024-11-23 02:51:13,523 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 [2024-11-23 02:51:13,523 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, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 02:51:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2024-11-23 02:51:13,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 02:51:13,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:13,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 40 letters. Loop has 8 letters. [2024-11-23 02:51:13,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:13,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 16 letters. [2024-11-23 02:51:13,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:51:13,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 211 transitions. [2024-11-23 02:51:13,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:51:13,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 0 states and 0 transitions. [2024-11-23 02:51:13,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 02:51:13,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 02:51:13,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 02:51:13,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:51:13,527 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:51:13,527 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:51:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:51:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 02:51:13,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 02:51:13,528 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 02:51:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:51:13,528 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-23 02:51:13,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-23 02:51:13,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:51:13,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 02:51:13,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 02:51:13,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 02:51:13,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 02:51:13,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:51:13,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:51:13,529 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:51:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 02:51:13,529 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:51:13,529 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-23 02:51:13,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 02:51:13,529 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:51:13,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 02:51:13,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:51:13 BoogieIcfgContainer [2024-11-23 02:51:13,536 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:51:13,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:51:13,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:51:13,536 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:51:13,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:03" (3/4) ... [2024-11-23 02:51:13,539 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 02:51:13,539 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:51:13,540 INFO L158 Benchmark]: Toolchain (without parser) took 10970.68ms. Allocated memory was 197.1MB in the beginning and 262.1MB in the end (delta: 65.0MB). Free memory was 127.3MB in the beginning and 82.2MB in the end (delta: 45.1MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2024-11-23 02:51:13,540 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 77.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:51:13,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.94ms. Allocated memory is still 197.1MB. Free memory was 127.1MB in the beginning and 115.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-23 02:51:13,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.95ms. Allocated memory is still 197.1MB. Free memory was 115.2MB in the beginning and 113.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:51:13,541 INFO L158 Benchmark]: Boogie Preprocessor took 22.91ms. Allocated memory is still 197.1MB. Free memory was 113.8MB in the beginning and 112.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:51:13,541 INFO L158 Benchmark]: RCFGBuilder took 226.59ms. Allocated memory is still 197.1MB. Free memory was 112.4MB in the beginning and 101.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-23 02:51:13,541 INFO L158 Benchmark]: BuchiAutomizer took 10503.06ms. Allocated memory was 197.1MB in the beginning and 262.1MB in the end (delta: 65.0MB). Free memory was 101.9MB in the beginning and 82.2MB in the end (delta: 19.7MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2024-11-23 02:51:13,542 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 262.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:51:13,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 77.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.94ms. Allocated memory is still 197.1MB. Free memory was 127.1MB in the beginning and 115.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.95ms. Allocated memory is still 197.1MB. Free memory was 115.2MB in the beginning and 113.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.91ms. Allocated memory is still 197.1MB. Free memory was 113.8MB in the beginning and 112.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 226.59ms. Allocated memory is still 197.1MB. Free memory was 112.4MB in the beginning and 101.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 10503.06ms. Allocated memory was 197.1MB in the beginning and 262.1MB in the end (delta: 65.0MB). Free memory was 101.9MB in the beginning and 82.2MB in the end (delta: 19.7MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 262.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret4 - 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 8 terminating modules (3 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 21 locations. One nondeterministic module has affine ranking function null and consists of 8 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.3s and 6 iterations. TraceHistogramMax:7. Analysis of lassos took 4.5s. Construction of modules took 0.7s. Büchi inclusion checks took 4.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 65 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, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 962 IncrementalHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 172 mSDtfsCounter, 962 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf90 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 02:51:13,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-23 02:51:13,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-23 02:51:13,966 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