./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/McCarthy91-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-551b009-m [2025-01-10 07:48:45,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:48:45,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:48:45,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:48:45,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:48:45,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:48:45,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:48:45,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:48:45,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:48:45,251 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:48:45,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:48:45,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:48:45,252 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:48:45,252 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:48:45,253 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:48:45,253 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:48:45,253 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:48:45,253 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:48:45,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:48:45,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:48:45,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:48:45,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:48:45,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:48:45,255 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:48:45,256 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 [2025-01-10 07:48:45,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:48:45,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:48:45,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:48:45,555 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:48:45,555 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:48:45,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2025-01-10 07:48:46,939 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff9ec5708/b69ed590bd044682bb36792edaf2f5c9/FLAGfd8180742 [2025-01-10 07:48:47,173 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:48:47,175 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2025-01-10 07:48:47,185 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff9ec5708/b69ed590bd044682bb36792edaf2f5c9/FLAGfd8180742 [2025-01-10 07:48:47,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff9ec5708/b69ed590bd044682bb36792edaf2f5c9 [2025-01-10 07:48:47,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:48:47,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:48:47,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:48:47,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:48:47,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:48:47,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211ced4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47, skipping insertion in model container [2025-01-10 07:48:47,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:48:47,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:48:47,435 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:48:47,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:48:47,461 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:48:47,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47 WrapperNode [2025-01-10 07:48:47,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:48:47,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:48:47,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:48:47,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:48:47,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,488 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2025-01-10 07:48:47,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:48:47,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:48:47,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:48:47,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:48:47,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,509 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]. [2025-01-10 07:48:47,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:48:47,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:48:47,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:48:47,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:48:47,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (1/1) ... [2025-01-10 07:48:47,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:47,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:47,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:48:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:48:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:48:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:48:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:48:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2025-01-10 07:48:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2025-01-10 07:48:47,634 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:48:47,636 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:48:47,732 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-01-10 07:48:47,733 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:48:47,742 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:48:47,742 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 07:48:47,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:47 BoogieIcfgContainer [2025-01-10 07:48:47,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:48:47,744 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:48:47,744 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:48:47,749 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:48:47,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:47,750 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:48:47" (1/3) ... [2025-01-10 07:48:47,751 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f39b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:48:47, skipping insertion in model container [2025-01-10 07:48:47,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:47,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:47" (2/3) ... [2025-01-10 07:48:47,752 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f39b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:48:47, skipping insertion in model container [2025-01-10 07:48:47,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:47,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:47" (3/3) ... [2025-01-10 07:48:47,754 INFO L363 chiAutomizerObserver]: Analyzing ICFG McCarthy91-1.c [2025-01-10 07:48:47,797 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:48:47,798 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:48:47,798 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:48:47,798 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:48:47,798 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:48:47,798 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:48:47,798 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:48:47,798 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:48:47,802 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) [2025-01-10 07:48:47,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:48:47,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:47,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:47,821 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:48:47,821 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-01-10 07:48:47,822 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:48:47,822 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) [2025-01-10 07:48:47,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:48:47,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:47,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:47,826 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:48:47,826 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-01-10 07:48:47,832 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< [2025-01-10 07:48:47,832 INFO L754 eck$LassoCheckResult]: Loop: "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< [2025-01-10 07:48:47,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash 29879, now seen corresponding path program 1 times [2025-01-10 07:48:47,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:47,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246732398] [2025-01-10 07:48:47,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:47,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:47,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:47,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:47,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,905 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:47,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:47,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:47,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:47,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:47,935 INFO L85 PathProgramCache]: Analyzing trace with hash 46807, now seen corresponding path program 1 times [2025-01-10 07:48:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:47,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577136952] [2025-01-10 07:48:47,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:47,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:47,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:47,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:47,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,944 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:47,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:47,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:47,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:47,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 890142305, now seen corresponding path program 1 times [2025-01-10 07:48:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:47,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222296847] [2025-01-10 07:48:47,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:47,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 07:48:47,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 07:48:47,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,961 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:47,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 07:48:47,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 07:48:47,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:47,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:47,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:48,059 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:48,060 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:48,060 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:48,060 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:48,060 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:48:48,060 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,060 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:48,061 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:48,061 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2025-01-10 07:48:48,061 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:48,061 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:48,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,146 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:48,147 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:48:48,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-01-10 07:48:48,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:48,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:48,178 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:48:48,178 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-01-10 07:48:48,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-01-10 07:48:48,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-01-10 07:48:48,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:48,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:48,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-01-10 07:48:48,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-01-10 07:48:48,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:48:48,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:48,334 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:48:48,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-01-10 07:48:48,340 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:48,340 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:48,340 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:48,341 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:48,341 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:48:48,341 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,341 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:48,341 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:48,341 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2025-01-10 07:48:48,341 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:48,341 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:48,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:48,404 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:48,407 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:48:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-01-10 07:48:48,415 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 [2025-01-10 07:48:48,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:48,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:48,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:48,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:48,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:48,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:48,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:48,439 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:48,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-01-10 07:48:48,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-01-10 07:48:48,452 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 [2025-01-10 07:48:48,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:48,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:48,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:48,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:48,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:48,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:48,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:48,468 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:48:48,478 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:48:48,481 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:48:48,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:48,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:48,486 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:48,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-01-10 07:48:48,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:48:48,489 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:48:48,489 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:48:48,489 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2025-01-10 07:48:48,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-01-10 07:48:48,500 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:48:48,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:48,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:48,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:48,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:48,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:48:48,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:48,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:48,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:48,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:48,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 07:48:48,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:48,669 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 [2025-01-10 07:48:48,671 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) [2025-01-10 07:48:48,773 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. [2025-01-10 07:48:48,775 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 [2025-01-10 07:48:48,780 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) [2025-01-10 07:48:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2025-01-10 07:48:48,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2025-01-10 07:48:48,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:48,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2025-01-10 07:48:48,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:48,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2025-01-10 07:48:48,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:48,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2025-01-10 07:48:48,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:48:48,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2025-01-10 07:48:48,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-01-10 07:48:48,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2025-01-10 07:48:48,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2025-01-10 07:48:48,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:48,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2025-01-10 07:48:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2025-01-10 07:48:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2025-01-10 07:48:48,825 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) [2025-01-10 07:48:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2025-01-10 07:48:48,828 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2025-01-10 07:48:48,828 INFO L432 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2025-01-10 07:48:48,828 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:48:48,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2025-01-10 07:48:48,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:48:48,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:48,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:48,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:48,831 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:48,832 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2025-01-10 07:48:48,832 INFO L754 eck$LassoCheckResult]: Loop: "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2025-01-10 07:48:48,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:48,832 INFO L85 PathProgramCache]: Analyzing trace with hash -218206616, now seen corresponding path program 1 times [2025-01-10 07:48:48,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:48,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021909779] [2025-01-10 07:48:48,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:48,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:48,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 07:48:48,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 07:48:48,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,846 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:48,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 07:48:48,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 07:48:48,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:48,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 1 times [2025-01-10 07:48:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160993764] [2025-01-10 07:48:48,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:48,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:48,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:48,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,863 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:48,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:48,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:48,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:48,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:48,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1919740023, now seen corresponding path program 1 times [2025-01-10 07:48:48,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:48,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841157626] [2025-01-10 07:48:48,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:48,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:48,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 07:48:48,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 07:48:48,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,887 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:48,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 07:48:48,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 07:48:48,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:48,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:48,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:48,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:49,069 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:49,070 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:49,070 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:49,070 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:49,070 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:48:49,070 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,070 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:49,070 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:49,070 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2025-01-10 07:48:49,070 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:49,070 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:49,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,127 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:49,128 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:48:49,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-01-10 07:48:49,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:49,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:49,150 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:48:49,151 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-01-10 07:48:49,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-01-10 07:48:49,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,162 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:49,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:49,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-01-10 07:48:49,184 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:48:49,184 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-01-10 07:48:49,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:49,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,195 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-01-10 07:48:49,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:49,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:49,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-01-10 07:48:49,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:48:49,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:49,882 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:48:49,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-01-10 07:48:49,898 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:49,898 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:49,898 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:49,898 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:49,898 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:48:49,898 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,898 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:49,898 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:49,898 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2025-01-10 07:48:49,898 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:49,898 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:49,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:49,960 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:49,960 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:48:49,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,964 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-01-10 07:48:49,967 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 [2025-01-10 07:48:49,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:49,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:49,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:49,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:49,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:49,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:49,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:49,983 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:49,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-01-10 07:48:49,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:49,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:49,994 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:49,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-01-10 07:48:49,997 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 [2025-01-10 07:48:50,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:50,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:50,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:50,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:50,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:50,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:50,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:50,016 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:50,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-01-10 07:48:50,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:50,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:50,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:50,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-01-10 07:48:50,031 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 [2025-01-10 07:48:50,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:50,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:50,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:50,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:50,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:50,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:50,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:50,053 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:48:50,056 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:48:50,057 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:48:50,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:50,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:50,059 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:50,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-01-10 07:48:50,062 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:48:50,062 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:48:50,062 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:48:50,063 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2025-01-10 07:48:50,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:50,072 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:48:50,074 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2025-01-10 07:48:50,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:50,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 07:48:50,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 07:48:50,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:50,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:50,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 07:48:50,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:50,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:50,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:50,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:50,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:50,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 07:48:50,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:50,344 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 [2025-01-10 07:48:50,344 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) [2025-01-10 07:48:50,530 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. [2025-01-10 07:48:50,530 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 [2025-01-10 07:48:50,531 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) [2025-01-10 07:48:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2025-01-10 07:48:50,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2025-01-10 07:48:50,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:50,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2025-01-10 07:48:50,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:50,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2025-01-10 07:48:50,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:50,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2025-01-10 07:48:50,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2025-01-10 07:48:50,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2025-01-10 07:48:50,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2025-01-10 07:48:50,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2025-01-10 07:48:50,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2025-01-10 07:48:50,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:50,545 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2025-01-10 07:48:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2025-01-10 07:48:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2025-01-10 07:48:50,550 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) [2025-01-10 07:48:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2025-01-10 07:48:50,551 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2025-01-10 07:48:50,551 INFO L432 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2025-01-10 07:48:50,552 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:48:50,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2025-01-10 07:48:50,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2025-01-10 07:48:50,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:50,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:50,554 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:50,554 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-01-10 07:48:50,555 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" [2025-01-10 07:48:50,555 INFO L754 eck$LassoCheckResult]: Loop: "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" [2025-01-10 07:48:50,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1987218266, now seen corresponding path program 2 times [2025-01-10 07:48:50,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:50,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957117068] [2025-01-10 07:48:50,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:50,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:50,560 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-01-10 07:48:50,569 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 07:48:50,571 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 07:48:50,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:50,571 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:50,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 07:48:50,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 07:48:50,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:50,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:50,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:50,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash 57247, now seen corresponding path program 2 times [2025-01-10 07:48:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784777981] [2025-01-10 07:48:50,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:50,584 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:50,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:50,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:48:50,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:50,586 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:50,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:50,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:50,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:50,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:50,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:50,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash -609818202, now seen corresponding path program 3 times [2025-01-10 07:48:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:50,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466689309] [2025-01-10 07:48:50,590 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:48:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:50,594 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 4 equivalence classes. [2025-01-10 07:48:50,600 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 07:48:50,601 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-10 07:48:50,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 07:48:50,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:50,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466689309] [2025-01-10 07:48:50,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466689309] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:50,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:50,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 07:48:50,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997574511] [2025-01-10 07:48:50,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:50,829 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:50,829 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:50,829 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:50,829 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:50,830 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:48:50,830 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:50,830 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:50,830 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:50,830 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2025-01-10 07:48:50,830 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:50,830 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:50,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:50,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:50,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:50,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:50,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-01-10 07:48:50,908 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:50,909 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:48:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:50,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:50,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-01-10 07:48:50,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:50,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:50,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:50,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:50,959 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:50,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-01-10 07:48:50,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:48:50,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:51,333 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:48:51,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-01-10 07:48:51,345 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:51,345 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:51,345 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:51,345 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:51,345 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:48:51,345 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:51,345 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:51,345 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:51,345 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2025-01-10 07:48:51,345 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:51,345 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:51,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:51,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:51,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:51,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:51,392 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:51,392 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:48:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:51,396 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:51,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-01-10 07:48:51,400 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 [2025-01-10 07:48:51,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:51,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:51,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:51,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:51,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:51,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:51,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:51,411 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:51,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-01-10 07:48:51,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:51,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:51,419 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:51,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-01-10 07:48:51,421 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 [2025-01-10 07:48:51,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:51,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:51,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:51,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:51,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:51,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:51,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:51,437 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:48:51,440 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:48:51,440 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:48:51,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:51,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:51,442 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:51,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-01-10 07:48:51,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:48:51,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:48:51,445 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:48:51,445 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2025-01-10 07:48:51,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-01-10 07:48:51,454 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:48:51,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:51,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 07:48:51,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 07:48:51,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:51,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:51,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:51,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:51,639 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 [2025-01-10 07:48:51,639 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) [2025-01-10 07:48:51,709 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. [2025-01-10 07:48:51,712 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 [2025-01-10 07:48:51,713 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) [2025-01-10 07:48:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-01-10 07:48:51,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2025-01-10 07:48:51,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:51,714 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:51,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:51,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 07:48:51,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 07:48:51,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:51,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:51,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:51,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:51,841 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 [2025-01-10 07:48:51,841 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) [2025-01-10 07:48:51,895 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. [2025-01-10 07:48:51,896 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 [2025-01-10 07:48:51,896 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) [2025-01-10 07:48:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-01-10 07:48:51,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2025-01-10 07:48:51,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:51,897 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:51,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:51,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 07:48:51,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 07:48:51,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:51,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:48:51,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:48:51,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:51,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:51,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 07:48:51,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:52,024 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 [2025-01-10 07:48:52,024 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) [2025-01-10 07:48:52,097 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. [2025-01-10 07:48:52,098 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 [2025-01-10 07:48:52,098 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) [2025-01-10 07:48:52,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2025-01-10 07:48:52,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2025-01-10 07:48:52,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:52,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2025-01-10 07:48:52,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:52,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2025-01-10 07:48:52,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:52,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2025-01-10 07:48:52,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2025-01-10 07:48:52,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2025-01-10 07:48:52,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2025-01-10 07:48:52,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2025-01-10 07:48:52,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2025-01-10 07:48:52,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:52,111 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2025-01-10 07:48:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2025-01-10 07:48:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2025-01-10 07:48:52,116 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) [2025-01-10 07:48:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2025-01-10 07:48:52,116 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2025-01-10 07:48:52,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:52,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 07:48:52,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-10 07:48:52,119 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) [2025-01-10 07:48:52,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:52,211 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2025-01-10 07:48:52,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2025-01-10 07:48:52,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2025-01-10 07:48:52,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2025-01-10 07:48:52,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2025-01-10 07:48:52,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2025-01-10 07:48:52,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2025-01-10 07:48:52,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:52,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2025-01-10 07:48:52,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2025-01-10 07:48:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2025-01-10 07:48:52,221 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) [2025-01-10 07:48:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2025-01-10 07:48:52,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2025-01-10 07:48:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 07:48:52,223 INFO L432 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2025-01-10 07:48:52,223 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 07:48:52,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2025-01-10 07:48:52,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2025-01-10 07:48:52,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:52,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:52,225 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 07:48:52,225 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2025-01-10 07:48:52,225 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< [2025-01-10 07:48:52,225 INFO L754 eck$LassoCheckResult]: Loop: "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< [2025-01-10 07:48:52,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash -834951989, now seen corresponding path program 1 times [2025-01-10 07:48:52,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:52,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866022907] [2025-01-10 07:48:52,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:52,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:52,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:48:52,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:48:52,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:52,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:52,236 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:52,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:48:52,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:48:52,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:52,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:52,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:52,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash -871747263, now seen corresponding path program 1 times [2025-01-10 07:48:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:52,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006139227] [2025-01-10 07:48:52,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:52,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:52,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:48:52,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:48:52,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:52,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:52,260 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:52,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:48:52,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:48:52,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:52,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:52,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:52,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:52,270 INFO L85 PathProgramCache]: Analyzing trace with hash 418853943, now seen corresponding path program 2 times [2025-01-10 07:48:52,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:52,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138305072] [2025-01-10 07:48:52,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:52,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:52,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 2 equivalence classes. [2025-01-10 07:48:52,298 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-01-10 07:48:52,298 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 07:48:52,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:52,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-01-10 07:48:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-10 07:48:52,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:52,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138305072] [2025-01-10 07:48:52,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138305072] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 07:48:52,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715160787] [2025-01-10 07:48:52,446 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 07:48:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:52,448 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 07:48:52,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 07:48:52,471 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 2 equivalence classes. [2025-01-10 07:48:52,484 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-01-10 07:48:52,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 07:48:52,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:52,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 07:48:52,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-10 07:48:52,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 07:48:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-10 07:48:52,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715160787] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 07:48:52,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 07:48:52,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2025-01-10 07:48:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555444049] [2025-01-10 07:48:52,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 07:48:52,925 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:52,925 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:52,925 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:52,925 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:52,925 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:48:52,925 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:52,925 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:52,925 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:52,926 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2025-01-10 07:48:52,926 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:52,926 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:52,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:52,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:52,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:52,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:52,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:52,964 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:52,964 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:48:52,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:52,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:52,967 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:52,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-01-10 07:48:52,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:52,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:52,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-01-10 07:48:52,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:52,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:52,999 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:53,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-01-10 07:48:53,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:48:53,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:53,014 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:48:53,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-01-10 07:48:53,022 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:53,022 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:53,022 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:53,022 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:53,022 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:48:53,022 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:53,022 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:53,023 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:53,023 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2025-01-10 07:48:53,023 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:53,023 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:53,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:53,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:53,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:53,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:53,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:53,059 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:53,060 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:48:53,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:53,063 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:53,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-01-10 07:48:53,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-01-10 07:48:53,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:53,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:53,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:53,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:53,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:53,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:53,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:53,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:48:53,079 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:48:53,079 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:48:53,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:53,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:53,081 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:53,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-01-10 07:48:53,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:48:53,083 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:48:53,083 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:48:53,083 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2025-01-10 07:48:53,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:53,090 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:48:53,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:53,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:48:53,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:48:53,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:53,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:53,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 07:48:53,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:53,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-01-10 07:48:53,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:48:53,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:48:53,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:53,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:53,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-10 07:48:53,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 07:48:53,541 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 [2025-01-10 07:48:53,541 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) [2025-01-10 07:48:53,930 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. [2025-01-10 07:48:53,931 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 [2025-01-10 07:48:53,932 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) [2025-01-10 07:48:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2025-01-10 07:48:53,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2025-01-10 07:48:53,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:53,932 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:53,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:53,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:48:53,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:48:53,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:53,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:53,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 07:48:53,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:54,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:48:54,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:48:54,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:54,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:54,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-10 07:48:54,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 07:48:54,367 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 [2025-01-10 07:48:54,367 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) [2025-01-10 07:48:54,682 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. [2025-01-10 07:48:54,683 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 [2025-01-10 07:48:54,684 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) [2025-01-10 07:48:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2025-01-10 07:48:54,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2025-01-10 07:48:54,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:54,685 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:54,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:54,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:48:54,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:48:54,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:54,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:54,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 07:48:54,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:54,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:48:54,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:48:54,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:54,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:54,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-10 07:48:54,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 07:48:55,095 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 [2025-01-10 07:48:55,095 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) [2025-01-10 07:48:55,781 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. [2025-01-10 07:48:55,782 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 [2025-01-10 07:48:55,783 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) [2025-01-10 07:48:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 50 transitions. [2025-01-10 07:48:55,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2025-01-10 07:48:55,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:55,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2025-01-10 07:48:55,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:55,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2025-01-10 07:48:55,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:55,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 531 transitions. [2025-01-10 07:48:55,801 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 29 [2025-01-10 07:48:55,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 203 states and 269 transitions. [2025-01-10 07:48:55,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2025-01-10 07:48:55,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2025-01-10 07:48:55,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 269 transitions. [2025-01-10 07:48:55,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:55,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 269 transitions. [2025-01-10 07:48:55,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 269 transitions. [2025-01-10 07:48:55,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 157. [2025-01-10 07:48:55,822 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) [2025-01-10 07:48:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2025-01-10 07:48:55,824 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 198 transitions. [2025-01-10 07:48:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:55,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 07:48:55,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-01-10 07:48:55,825 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) [2025-01-10 07:48:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:56,030 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2025-01-10 07:48:56,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 188 transitions. [2025-01-10 07:48:56,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2025-01-10 07:48:56,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 104 states and 123 transitions. [2025-01-10 07:48:56,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2025-01-10 07:48:56,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2025-01-10 07:48:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 123 transitions. [2025-01-10 07:48:56,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 07:48:56,040 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 123 transitions. [2025-01-10 07:48:56,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 123 transitions. [2025-01-10 07:48:56,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2025-01-10 07:48:56,048 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) [2025-01-10 07:48:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2025-01-10 07:48:56,049 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 119 transitions. [2025-01-10 07:48:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 07:48:56,053 INFO L432 stractBuchiCegarLoop]: Abstraction has 100 states and 119 transitions. [2025-01-10 07:48:56,053 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-01-10 07:48:56,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 119 transitions. [2025-01-10 07:48:56,054 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2025-01-10 07:48:56,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:56,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:56,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2025-01-10 07:48:56,057 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:56,057 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2025-01-10 07:48:56,057 INFO L754 eck$LassoCheckResult]: Loop: "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2025-01-10 07:48:56,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash 2083076242, now seen corresponding path program 3 times [2025-01-10 07:48:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521515916] [2025-01-10 07:48:56,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:48:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:56,062 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 7 equivalence classes. [2025-01-10 07:48:56,068 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 32 statements. [2025-01-10 07:48:56,068 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-10 07:48:56,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-10 07:48:56,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:56,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521515916] [2025-01-10 07:48:56,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521515916] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 07:48:56,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144081524] [2025-01-10 07:48:56,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:48:56,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 07:48:56,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:56,199 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 07:48:56,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-10 07:48:56,223 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 7 equivalence classes. [2025-01-10 07:48:56,233 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 32 statements. [2025-01-10 07:48:56,233 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-10 07:48:56,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:56,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 07:48:56,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-10 07:48:56,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 07:48:56,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144081524] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 07:48:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 9 [2025-01-10 07:48:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534087728] [2025-01-10 07:48:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:56,255 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-01-10 07:48:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 2 times [2025-01-10 07:48:56,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:56,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557195232] [2025-01-10 07:48:56,256 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:56,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes. [2025-01-10 07:48:56,259 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:56,259 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 07:48:56,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:56,260 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:56,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:56,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:56,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:56,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:56,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:56,350 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:56,351 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:56,351 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:56,351 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:56,351 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:48:56,351 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:56,351 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:56,351 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:56,351 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2025-01-10 07:48:56,351 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:56,351 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:56,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:56,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:56,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:56,398 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:56,399 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:48:56,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:56,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:56,401 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:56,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-01-10 07:48:56,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:56,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:56,419 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-01-10 07:48:56,419 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-01-10 07:48:56,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-01-10 07:48:56,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:56,430 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:56,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-01-10 07:48:56,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:48:56,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:56,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-01-10 07:48:56,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:56,473 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:56,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-01-10 07:48:56,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:48:56,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:48:57,124 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:48:57,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-01-10 07:48:57,142 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:48:57,142 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:48:57,142 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:48:57,142 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:48:57,142 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:48:57,142 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:57,142 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:48:57,143 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:48:57,143 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2025-01-10 07:48:57,143 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:48:57,143 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:48:57,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:57,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:57,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:48:57,181 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:48:57,181 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:48:57,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:57,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:57,183 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:57,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-01-10 07:48:57,185 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 [2025-01-10 07:48:57,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:57,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:57,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:57,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:57,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:57,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:57,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:57,197 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:57,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-01-10 07:48:57,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:57,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:57,205 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:57,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-01-10 07:48:57,208 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 [2025-01-10 07:48:57,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:57,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:57,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:57,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:57,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:57,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:57,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:57,223 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-01-10 07:48:57,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-01-10 07:48:57,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:57,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:57,231 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:57,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-01-10 07:48:57,233 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 [2025-01-10 07:48:57,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:48:57,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:48:57,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:48:57,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:48:57,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:48:57,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:48:57,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:48:57,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:48:57,250 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:48:57,250 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:48:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:57,252 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:57,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-01-10 07:48:57,254 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:48:57,254 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:48:57,254 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:48:57,254 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2025-01-10 07:48:57,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-01-10 07:48:57,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:48:57,262 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2025-01-10 07:48:57,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:57,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:48:57,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:48:57,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:57,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:57,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 07:48:57,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:57,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:57,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-01-10 07:48:57,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:57,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:57,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:57,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 07:48:57,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:57,590 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 [2025-01-10 07:48:57,590 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) [2025-01-10 07:48:57,700 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. [2025-01-10 07:48:57,702 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 [2025-01-10 07:48:57,703 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) [2025-01-10 07:48:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2025-01-10 07:48:57,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2025-01-10 07:48:57,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:57,703 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:57,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:57,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:48:57,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:48:57,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:57,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:57,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 07:48:57,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:57,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:57,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:57,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:57,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:57,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 07:48:57,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:58,025 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 [2025-01-10 07:48:58,026 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) [2025-01-10 07:48:58,170 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. [2025-01-10 07:48:58,172 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 [2025-01-10 07:48:58,173 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) [2025-01-10 07:48:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2025-01-10 07:48:58,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2025-01-10 07:48:58,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:58,174 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 07:48:58,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:58,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:48:58,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:48:58,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:58,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:58,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 07:48:58,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:58,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:58,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:58,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:58,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:58,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 07:48:58,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:48:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:58,463 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 [2025-01-10 07:48:58,464 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) [2025-01-10 07:48:58,579 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. [2025-01-10 07:48:58,580 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 [2025-01-10 07:48:58,581 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) [2025-01-10 07:48:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2025-01-10 07:48:58,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 8 letters. [2025-01-10 07:48:58,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:58,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 40 letters. Loop has 8 letters. [2025-01-10 07:48:58,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:58,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 16 letters. [2025-01-10 07:48:58,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:48:58,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 211 transitions. [2025-01-10 07:48:58,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:48:58,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 0 states and 0 transitions. [2025-01-10 07:48:58,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 07:48:58,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 07:48:58,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 07:48:58,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:58,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:48:58,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:48:58,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:58,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 07:48:58,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-10 07:48:58,588 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) [2025-01-10 07:48:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:58,589 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:48:58,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 07:48:58,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 07:48:58,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:58,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:48:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 07:48:58,590 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:48:58,591 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-01-10 07:48:58,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-01-10 07:48:58,591 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:48:58,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-01-10 07:48:58,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:48:58 BoogieIcfgContainer [2025-01-10 07:48:58,601 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:48:58,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:48:58,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:48:58,602 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:48:58,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:47" (3/4) ... [2025-01-10 07:48:58,604 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 07:48:58,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:48:58,606 INFO L158 Benchmark]: Toolchain (without parser) took 11375.57ms. Allocated memory was 520.1MB in the beginning and 142.6MB in the end (delta: -377.5MB). Free memory was 484.0MB in the beginning and 69.4MB in the end (delta: 414.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2025-01-10 07:48:58,606 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:58,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.84ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 96.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:48:58,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.69ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 95.2MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:58,607 INFO L158 Benchmark]: Boogie Preprocessor took 30.78ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 950.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:58,607 INFO L158 Benchmark]: RCFGBuilder took 219.27ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 84.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:48:58,607 INFO L158 Benchmark]: BuchiAutomizer took 10856.47ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 69.4MB in the end (delta: 15.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2025-01-10 07:48:58,608 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 142.6MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:58,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.84ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 96.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.69ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 95.2MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.78ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 950.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 219.27ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 84.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10856.47ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 69.4MB in the end (delta: 15.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 142.6MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 41.6kB). 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 10.8s and 6 iterations. TraceHistogramMax:7. Analysis of lassos took 4.8s. Construction of modules took 0.6s. Büchi inclusion checks took 5.0s. 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, 0.8s 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: 30ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-01-10 07:48:58,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-01-10 07:48:58,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 07:48:59,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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