./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/nested6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:26:41,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:26:41,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:26:41,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:26:41,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:26:41,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:26:41,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:26:41,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:26:41,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:26:41,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:26:41,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:26:41,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:26:41,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:26:41,582 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:26:41,583 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:26:41,583 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:26:41,584 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:26:41,584 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:26:41,584 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:26:41,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:26:41,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:26:41,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:26:41,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:26:41,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:26:41,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:26:41,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:26:41,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:26:41,590 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:26:41,590 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2024-11-12 21:26:41,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:26:41,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:26:41,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:26:41,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:26:41,800 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:26:41,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/nested6.i [2024-11-12 21:26:42,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:26:43,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:26:43,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested6.i [2024-11-12 21:26:43,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49dd3545/2bb5632058bb4350a2d1ba67fa4c0769/FLAGe5df50ca6 [2024-11-12 21:26:43,131 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49dd3545/2bb5632058bb4350a2d1ba67fa4c0769 [2024-11-12 21:26:43,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:26:43,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:26:43,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:26:43,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:26:43,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:26:43,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d648470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43, skipping insertion in model container [2024-11-12 21:26:43,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:26:43,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:26:43,326 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:26:43,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:26:43,380 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:26:43,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43 WrapperNode [2024-11-12 21:26:43,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:26:43,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:26:43,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:26:43,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:26:43,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,413 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 81 [2024-11-12 21:26:43,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:26:43,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:26:43,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:26:43,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:26:43,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,434 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 21:26:43,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:26:43,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:26:43,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:26:43,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:26:43,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (1/1) ... [2024-11-12 21:26:43,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:43,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:43,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:43,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 21:26:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:26:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:26:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:26:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:26:43,586 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:26:43,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:26:43,747 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-12 21:26:43,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:26:43,759 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:26:43,760 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 21:26:43,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:43 BoogieIcfgContainer [2024-11-12 21:26:43,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:26:43,762 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:26:43,762 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:26:43,765 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:26:43,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:43,767 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:26:43" (1/3) ... [2024-11-12 21:26:43,768 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bae532d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:26:43, skipping insertion in model container [2024-11-12 21:26:43,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:43,768 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:43" (2/3) ... [2024-11-12 21:26:43,768 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bae532d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:26:43, skipping insertion in model container [2024-11-12 21:26:43,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:43,769 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:43" (3/3) ... [2024-11-12 21:26:43,769 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested6.i [2024-11-12 21:26:43,816 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:26:43,817 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:26:43,817 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:26:43,817 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:26:43,817 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:26:43,817 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:26:43,817 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:26:43,818 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:26:43,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:43,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-12 21:26:43,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:43,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:43,842 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-12 21:26:43,842 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 21:26:43,842 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:26:43,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:43,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-12 21:26:43,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:43,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:43,844 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-12 21:26:43,845 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 21:26:43,850 INFO L747 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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" [2024-11-12 21:26:43,851 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" "assume !true;" "main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" [2024-11-12 21:26:43,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash 28695784, now seen corresponding path program 1 times [2024-11-12 21:26:43,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:43,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360609248] [2024-11-12 21:26:43,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:43,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:43,927 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:43,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:43,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash 54231, now seen corresponding path program 1 times [2024-11-12 21:26:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:43,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281405507] [2024-11-12 21:26:43,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:43,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:43,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281405507] [2024-11-12 21:26:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281405507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:43,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740578616] [2024-11-12 21:26:43,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:43,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:43,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:43,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:43,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:26:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:44,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-12 21:26:44,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:44,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:44,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740578616] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:44,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:44,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 21:26:44,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053634917] [2024-11-12 21:26:44,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:44,037 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:26:44,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 21:26:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 21:26:44,066 INFO L87 Difference]: Start difference. First operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:44,073 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2024-11-12 21:26:44,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2024-11-12 21:26:44,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-12 21:26:44,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 18 states and 21 transitions. [2024-11-12 21:26:44,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-12 21:26:44,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-12 21:26:44,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2024-11-12 21:26:44,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:44,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-12 21:26:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2024-11-12 21:26:44,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-12 21:26:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-11-12 21:26:44,100 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-12 21:26:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 21:26:44,103 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-12 21:26:44,103 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:26:44,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2024-11-12 21:26:44,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-12 21:26:44,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:44,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:44,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-12 21:26:44,104 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 21:26:44,104 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" [2024-11-12 21:26:44,105 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" "assume !(main_~j~0#1 < main_~n~0#1);" "main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" [2024-11-12 21:26:44,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 28695784, now seen corresponding path program 2 times [2024-11-12 21:26:44,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:44,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535306182] [2024-11-12 21:26:44,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,116 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:44,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 51906, now seen corresponding path program 1 times [2024-11-12 21:26:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:44,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986345676] [2024-11-12 21:26:44,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,137 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:44,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,144 INFO L85 PathProgramCache]: Analyzing trace with hash 177631355, now seen corresponding path program 1 times [2024-11-12 21:26:44,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:44,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595663956] [2024-11-12 21:26:44,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:44,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:44,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595663956] [2024-11-12 21:26:44,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595663956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:44,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912962002] [2024-11-12 21:26:44,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:44,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,288 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 21:26:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:44,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:44,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:44,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:44,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912962002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:44,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:44,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-12 21:26:44,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864363222] [2024-11-12 21:26:44,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:44,425 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:44,426 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:44,428 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:44,428 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:44,428 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:44,428 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,428 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:44,428 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:44,428 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration2_Loop [2024-11-12 21:26:44,428 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:44,429 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:44,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,487 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:44,487 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:44,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-12 21:26:44,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:44,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:44,508 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:44,508 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:44,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-12 21:26:44,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-12 21:26:44,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:44,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:44,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:44,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-12 21:26:44,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:44,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:44,629 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:44,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:44,634 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:44,634 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:44,634 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:44,634 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:44,634 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:44,634 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,634 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:44,635 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:44,635 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration2_Loop [2024-11-12 21:26:44,635 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:44,635 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:44,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:44,677 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:44,681 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:44,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,684 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-12 21:26:44,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:44,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:44,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:44,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:44,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:44,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:44,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:44,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:44,702 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:44,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:44,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,715 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-12 21:26:44,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:44,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:44,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:44,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:44,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:44,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:44,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:44,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:44,730 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:44,733 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-12 21:26:44,733 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 21:26:44,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:44,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:44,735 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-12 21:26:44,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:44,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:44,737 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:44,737 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-12 21:26:44,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:44,751 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:44,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:44,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:44,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:44,784 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:44,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:44,816 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:44,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-12 21:26:44,880 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 40 transitions. Complement of second has 4 states. [2024-11-12 21:26:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2024-11-12 21:26:44,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-12 21:26:44,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:44,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-12 21:26:44,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:44,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-12 21:26:44,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:44,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2024-11-12 21:26:44,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-12 21:26:44,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 31 states and 38 transitions. [2024-11-12 21:26:44,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-12 21:26:44,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-12 21:26:44,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2024-11-12 21:26:44,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:44,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-12 21:26:44,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2024-11-12 21:26:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-12 21:26:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-11-12 21:26:44,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-11-12 21:26:44,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:44,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 21:26:44,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-12 21:26:44,897 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:44,968 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2024-11-12 21:26:44,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 91 transitions. [2024-11-12 21:26:44,970 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2024-11-12 21:26:44,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 75 states and 91 transitions. [2024-11-12 21:26:44,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2024-11-12 21:26:44,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2024-11-12 21:26:44,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 91 transitions. [2024-11-12 21:26:44,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:44,973 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75 states and 91 transitions. [2024-11-12 21:26:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 91 transitions. [2024-11-12 21:26:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 31. [2024-11-12 21:26:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-12 21:26:44,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-12 21:26:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 21:26:44,978 INFO L426 stractBuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-12 21:26:44,978 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:26:44,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2024-11-12 21:26:44,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-12 21:26:44,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:44,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:44,979 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:26:44,979 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 21:26:44,979 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-12 21:26:44,979 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" "assume !(main_~k~0#1 < main_~n~0#1);" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-12 21:26:44,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash 889569326, now seen corresponding path program 1 times [2024-11-12 21:26:44,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:44,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605532089] [2024-11-12 21:26:44,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,990 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:44,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:44,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1850274, now seen corresponding path program 1 times [2024-11-12 21:26:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832747109] [2024-11-12 21:26:44,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:45,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:45,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832747109] [2024-11-12 21:26:45,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832747109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:45,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821137928] [2024-11-12 21:26:45,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:45,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 21:26:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:45,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:26:45,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:45,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:45,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821137928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:45,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:45,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:26:45,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55336415] [2024-11-12 21:26:45,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:45,079 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:26:45,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:45,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 21:26:45,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 21:26:45,080 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:45,109 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-11-12 21:26:45,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2024-11-12 21:26:45,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-12 21:26:45,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 40 transitions. [2024-11-12 21:26:45,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-12 21:26:45,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-12 21:26:45,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 40 transitions. [2024-11-12 21:26:45,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:45,111 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-12 21:26:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 40 transitions. [2024-11-12 21:26:45,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-12 21:26:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-12 21:26:45,113 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-12 21:26:45,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 21:26:45,114 INFO L426 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-12 21:26:45,114 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:26:45,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2024-11-12 21:26:45,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-12 21:26:45,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:45,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:45,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:26:45,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:26:45,115 INFO L747 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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-12 21:26:45,116 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-12 21:26:45,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash 889569326, now seen corresponding path program 2 times [2024-11-12 21:26:45,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783439997] [2024-11-12 21:26:45,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,121 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,126 INFO L85 PathProgramCache]: Analyzing trace with hash 239540955, now seen corresponding path program 1 times [2024-11-12 21:26:45,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34640103] [2024-11-12 21:26:45,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,137 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1037975054, now seen corresponding path program 1 times [2024-11-12 21:26:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970070384] [2024-11-12 21:26:45,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,168 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,211 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:45,212 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:45,212 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:45,212 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:45,212 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:45,212 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,212 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:45,212 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:45,212 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-12 21:26:45,213 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:45,213 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:45,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,252 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:45,252 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:45,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,254 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-12 21:26:45,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:45,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:45,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-12 21:26:45,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-12 21:26:45,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:45,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:45,493 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:45,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:45,499 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:45,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:45,499 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:45,499 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:45,499 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:45,499 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,499 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:45,499 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:45,499 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-12 21:26:45,499 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:45,499 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:45,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,542 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:45,542 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:45,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,544 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-12 21:26:45,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:45,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:45,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:45,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:45,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:45,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:45,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:45,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:45,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:45,564 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-12 21:26:45,564 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 21:26:45,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-12 21:26:45,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:45,570 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:45,570 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:45,570 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-12 21:26:45,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:45,586 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:45,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:45,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:45,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:45,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:45,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:45,677 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:45,677 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:45,711 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 98 transitions. Complement of second has 5 states. [2024-11-12 21:26:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:45,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-12 21:26:45,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 6 letters. Loop has 7 letters. [2024-11-12 21:26:45,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:45,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 13 letters. Loop has 7 letters. [2024-11-12 21:26:45,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:45,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 6 letters. Loop has 14 letters. [2024-11-12 21:26:45,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:45,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 98 transitions. [2024-11-12 21:26:45,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-12 21:26:45,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 64 states and 78 transitions. [2024-11-12 21:26:45,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-11-12 21:26:45,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-12 21:26:45,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 78 transitions. [2024-11-12 21:26:45,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:45,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 78 transitions. [2024-11-12 21:26:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 78 transitions. [2024-11-12 21:26:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2024-11-12 21:26:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 50 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2024-11-12 21:26:45,720 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 62 transitions. [2024-11-12 21:26:45,720 INFO L426 stractBuchiCegarLoop]: Abstraction has 51 states and 62 transitions. [2024-11-12 21:26:45,720 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 21:26:45,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 62 transitions. [2024-11-12 21:26:45,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-12 21:26:45,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:45,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:45,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:26:45,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 21:26:45,721 INFO L747 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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" [2024-11-12 21:26:45,723 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" [2024-11-12 21:26:45,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,723 INFO L85 PathProgramCache]: Analyzing trace with hash 177631345, now seen corresponding path program 1 times [2024-11-12 21:26:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351368721] [2024-11-12 21:26:45,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,735 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2199665, now seen corresponding path program 1 times [2024-11-12 21:26:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541881707] [2024-11-12 21:26:45,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,747 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2771169, now seen corresponding path program 1 times [2024-11-12 21:26:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255150173] [2024-11-12 21:26:45,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,764 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:45,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:45,798 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:45,799 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:45,799 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:45,799 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:45,799 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:45,799 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,799 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:45,799 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:45,799 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-12 21:26:45,799 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:45,799 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:45,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:45,829 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:45,829 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:45,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,831 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-12 21:26:45,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:45,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:45,844 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:45,845 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:45,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-12 21:26:45,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,858 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-12 21:26:45,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:45,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:45,871 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:45,872 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:45,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-12 21:26:45,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,885 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-12 21:26:45,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:45,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:45,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:45,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:45,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:45,911 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:45,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-12 21:26:45,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:45,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:46,040 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:46,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-12 21:26:46,044 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:46,044 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:46,044 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:46,044 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:46,045 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:46,045 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,045 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:46,045 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:46,045 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-12 21:26:46,045 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:46,045 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:46,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,076 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:46,077 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:46,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,079 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-12 21:26:46,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,092 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:46,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-12 21:26:46,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,105 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-12 21:26:46,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,120 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:46,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:26:46,123 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:26:46,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,124 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-12 21:26:46,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:46,126 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:46,126 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:46,127 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2024-11-12 21:26:46,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-12 21:26:46,139 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:46,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:46,207 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:46,208 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 62 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 62 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 157 states and 192 transitions. Complement of second has 7 states. [2024-11-12 21:26:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-12 21:26:46,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-12 21:26:46,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:46,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-12 21:26:46,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:46,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-12 21:26:46,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:46,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 192 transitions. [2024-11-12 21:26:46,240 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2024-11-12 21:26:46,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 114 states and 138 transitions. [2024-11-12 21:26:46,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2024-11-12 21:26:46,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-12 21:26:46,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 138 transitions. [2024-11-12 21:26:46,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:46,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 138 transitions. [2024-11-12 21:26:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 138 transitions. [2024-11-12 21:26:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 79. [2024-11-12 21:26:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 78 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2024-11-12 21:26:46,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 95 transitions. [2024-11-12 21:26:46,244 INFO L426 stractBuchiCegarLoop]: Abstraction has 79 states and 95 transitions. [2024-11-12 21:26:46,245 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 21:26:46,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 95 transitions. [2024-11-12 21:26:46,245 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 23 [2024-11-12 21:26:46,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:46,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:46,246 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:26:46,246 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 21:26:46,246 INFO L747 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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" "assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" "assume !(main_~k~0#1 < main_~n~0#1);" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" [2024-11-12 21:26:46,246 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" [2024-11-12 21:26:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash -566482494, now seen corresponding path program 1 times [2024-11-12 21:26:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:46,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180741345] [2024-11-12 21:26:46,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:46,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:46,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180741345] [2024-11-12 21:26:46,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180741345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:46,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447675034] [2024-11-12 21:26:46,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:46,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:46,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,310 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-12 21:26:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:46,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447675034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:46,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:46,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-12 21:26:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407717750] [2024-11-12 21:26:46,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:46,378 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 21:26:46,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2199665, now seen corresponding path program 2 times [2024-11-12 21:26:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:46,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061415554] [2024-11-12 21:26:46,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:46,385 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:46,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:46,411 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:46,411 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:46,411 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:46,412 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:46,412 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:46,412 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,412 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:46,412 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:46,412 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-12 21:26:46,412 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:46,412 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:46,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:46,440 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:46,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,442 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-12 21:26:46,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:46,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:46,456 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:46,456 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:46,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,467 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-12 21:26:46,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:46,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:46,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-12 21:26:46,505 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:46,505 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:46,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,526 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-12 21:26:46,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:46,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:46,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,552 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-12 21:26:46,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:46,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:46,676 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:46,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,680 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:46,680 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:46,680 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:46,680 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:46,680 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:46,680 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,680 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:46,680 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:46,680 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-12 21:26:46,680 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:46,680 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:46,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:46,717 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:46,717 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:46,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,719 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-12 21:26:46,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,731 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:46,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-12 21:26:46,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,743 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-12 21:26:46,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,756 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:46,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-12 21:26:46,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,767 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-12 21:26:46,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,781 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:46,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,792 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-12 21:26:46,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:46,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:46,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:46,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:46,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:46,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:46,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:46,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:46,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:46,808 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:26:46,808 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 21:26:46,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:46,809 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:46,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-12 21:26:46,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:46,810 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:46,810 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:46,810 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2024-11-12 21:26:46,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:46,821 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:46,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:46,873 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:46,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,898 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 180 transitions. Complement of second has 7 states. [2024-11-12 21:26:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:46,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-12 21:26:46,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-12 21:26:46,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:46,900 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 21:26:46,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:46,950 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:46,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,969 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 180 transitions. Complement of second has 7 states. [2024-11-12 21:26:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-12 21:26:46,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-12 21:26:46,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:46,971 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 21:26:46,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:46,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:46,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:47,032 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:47,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 121 states and 148 transitions. Complement of second has 6 states. [2024-11-12 21:26:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-11-12 21:26:47,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-12 21:26:47,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:47,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 20 letters. Loop has 4 letters. [2024-11-12 21:26:47,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:47,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 16 letters. Loop has 8 letters. [2024-11-12 21:26:47,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:47,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 148 transitions. [2024-11-12 21:26:47,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-12 21:26:47,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 55 states and 66 transitions. [2024-11-12 21:26:47,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-12 21:26:47,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-11-12 21:26:47,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 66 transitions. [2024-11-12 21:26:47,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:47,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 66 transitions. [2024-11-12 21:26:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 66 transitions. [2024-11-12 21:26:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 33. [2024-11-12 21:26:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 32 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-11-12 21:26:47,067 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-12 21:26:47,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:47,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 21:26:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 21:26:47,069 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:47,113 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2024-11-12 21:26:47,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 58 transitions. [2024-11-12 21:26:47,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-12 21:26:47,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 49 states and 56 transitions. [2024-11-12 21:26:47,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-12 21:26:47,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-12 21:26:47,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 56 transitions. [2024-11-12 21:26:47,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:26:47,114 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-12 21:26:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 56 transitions. [2024-11-12 21:26:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2024-11-12 21:26:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-12 21:26:47,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-12 21:26:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 21:26:47,116 INFO L426 stractBuchiCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-12 21:26:47,116 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-12 21:26:47,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 50 transitions. [2024-11-12 21:26:47,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:26:47,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:47,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:47,117 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:26:47,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:26:47,117 INFO L747 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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" "assume !(main_~j~0#1 < main_~n~0#1);" "main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" "assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-12 21:26:47,117 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-12 21:26:47,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:47,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1449667301, now seen corresponding path program 1 times [2024-11-12 21:26:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:47,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046265239] [2024-11-12 21:26:47,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:47,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046265239] [2024-11-12 21:26:47,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046265239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315186996] [2024-11-12 21:26:47,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:47,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:47,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,203 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-12 21:26:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,296 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:47,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315186996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:47,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-12 21:26:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248153197] [2024-11-12 21:26:47,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:47,334 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 21:26:47,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 239540955, now seen corresponding path program 2 times [2024-11-12 21:26:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041211319] [2024-11-12 21:26:47,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:47,339 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:47,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:47,376 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:47,376 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:47,376 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:47,376 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:47,376 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:47,376 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,376 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:47,376 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:47,376 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration7_Loop [2024-11-12 21:26:47,376 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:47,376 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:47,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,413 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:47,413 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:47,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,414 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-12 21:26:47,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:47,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:47,427 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:47,427 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:47,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:47,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,438 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-12 21:26:47,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:47,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:47,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-12 21:26:47,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,463 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-12 21:26:47,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:47,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:47,672 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:47,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:47,678 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:47,678 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:47,678 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:47,678 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:47,678 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:47,678 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,678 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:47,678 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:47,678 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration7_Loop [2024-11-12 21:26:47,678 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:47,678 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:47,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:47,715 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:47,715 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:47,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,717 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-12 21:26:47,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:47,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:47,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:47,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:47,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:47,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:47,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:47,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:47,730 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:47,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-12 21:26:47,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,742 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-12 21:26:47,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:47,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:47,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:47,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:47,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:47,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:47,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:47,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:47,755 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:47,757 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:26:47,758 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:26:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:47,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:47,759 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:47,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-12 21:26:47,760 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:47,760 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:47,760 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:47,760 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-12 21:26:47,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:47,770 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:47,829 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:47,829 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,850 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 91 transitions. Complement of second has 5 states. [2024-11-12 21:26:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-12 21:26:47,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-12 21:26:47,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:47,853 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 21:26:47,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:47,913 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:47,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,927 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 91 transitions. Complement of second has 5 states. [2024-11-12 21:26:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-12 21:26:47,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-12 21:26:47,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:47,929 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 21:26:47,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:47,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:47,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:47,991 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:47,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:48,008 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 88 transitions. Complement of second has 4 states. [2024-11-12 21:26:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-11-12 21:26:48,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-12 21:26:48,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:48,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 23 letters. Loop has 7 letters. [2024-11-12 21:26:48,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:48,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 16 letters. Loop has 14 letters. [2024-11-12 21:26:48,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:48,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 88 transitions. [2024-11-12 21:26:48,010 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:48,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2024-11-12 21:26:48,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 21:26:48,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 21:26:48,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 21:26:48,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:48,010 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:48,010 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:48,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 21:26:48,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-12 21:26:48,011 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:48,011 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:48,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 21:26:48,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 21:26:48,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:48,011 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 21:26:48,012 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:48,012 INFO L333 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-12 21:26:48,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 21:26:48,012 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:48,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 21:26:48,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:26:48 BoogieIcfgContainer [2024-11-12 21:26:48,018 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:26:48,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:26:48,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:26:48,018 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:26:48,019 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:43" (3/4) ... [2024-11-12 21:26:48,020 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 21:26:48,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:26:48,021 INFO L158 Benchmark]: Toolchain (without parser) took 4887.52ms. Allocated memory was 178.3MB in the beginning and 226.5MB in the end (delta: 48.2MB). Free memory was 115.6MB in the beginning and 69.4MB in the end (delta: 46.2MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2024-11-12 21:26:48,022 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:48,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.46ms. Allocated memory is still 178.3MB. Free memory was 115.2MB in the beginning and 146.9MB in the end (delta: -31.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 21:26:48,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.75ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:48,022 INFO L158 Benchmark]: Boogie Preprocessor took 32.52ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 143.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:48,022 INFO L158 Benchmark]: RCFGBuilder took 312.89ms. Allocated memory is still 178.3MB. Free memory was 143.9MB in the beginning and 132.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:26:48,023 INFO L158 Benchmark]: BuchiAutomizer took 4255.96ms. Allocated memory was 178.3MB in the beginning and 226.5MB in the end (delta: 48.2MB). Free memory was 131.4MB in the beginning and 69.4MB in the end (delta: 61.9MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2024-11-12 21:26:48,023 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 226.5MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:48,024 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.46ms. Allocated memory is still 178.3MB. Free memory was 115.2MB in the beginning and 146.9MB in the end (delta: -31.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.75ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.52ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 143.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.89ms. Allocated memory is still 178.3MB. Free memory was 143.9MB in the beginning and 132.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4255.96ms. Allocated memory was 178.3MB in the beginning and 226.5MB in the end (delta: 48.2MB). Free memory was 131.4MB in the beginning and 69.4MB in the end (delta: 61.9MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 226.5MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. One deterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 121 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 [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 404 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 395 mSDsluCounter, 387 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 254 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-12 21:26:48,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:48,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:48,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:48,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:48,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:49,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:49,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:49,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE