./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-new/nested-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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-new/nested-1.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 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:05:26,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:05:26,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:05:26,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:05:26,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:05:26,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:05:26,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:05:26,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:05:26,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:05:26,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:05:26,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:05:26,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:05:26,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:05:26,545 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:05:26,546 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:05:26,546 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:05:26,546 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:05:26,546 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:05:26,547 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:05:26,547 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:05:26,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:05:26,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:05:26,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:05:26,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:05:26,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:05:26,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:05:26,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:05:26,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:05:26,554 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:05:26,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:05:26,554 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:05:26,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:05:26,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:05:26,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:05:26,555 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:05:26,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a [2024-11-10 23:05:26,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:05:26,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:05:26,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:05:26,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:05:26,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:05:26,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/nested-1.i [2024-11-10 23:05:28,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:05:28,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:05:28,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i [2024-11-10 23:05:28,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54d85deb6/121e1637525b4f46a4af5228fad4e5ab/FLAG55c41e324 [2024-11-10 23:05:28,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54d85deb6/121e1637525b4f46a4af5228fad4e5ab [2024-11-10 23:05:28,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:05:28,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:05:28,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:05:28,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:05:28,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:05:28,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:05:28" (1/1) ... [2024-11-10 23:05:28,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187e21d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:28, skipping insertion in model container [2024-11-10 23:05:28,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:05:28" (1/1) ... [2024-11-10 23:05:28,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:05:29,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:05:29,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:05:29,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:05:29,122 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:05:29,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29 WrapperNode [2024-11-10 23:05:29,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:05:29,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:05:29,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:05:29,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:05:29,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,182 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2024-11-10 23:05:29,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:05:29,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:05:29,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:05:29,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:05:29,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,220 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]. [2024-11-10 23:05:29,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,237 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:05:29,245 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:05:29,245 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:05:29,245 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:05:29,246 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (1/1) ... [2024-11-10 23:05:29,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:29,287 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) [2024-11-10 23:05:29,290 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 [2024-11-10 23:05:29,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:05:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:05:29,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:05:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:05:29,402 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:05:29,404 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:05:29,541 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-10 23:05:29,542 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:05:29,553 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:05:29,553 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:05:29,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:29 BoogieIcfgContainer [2024-11-10 23:05:29,554 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:05:29,556 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:05:29,556 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:05:29,559 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:05:29,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:29,560 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:05:28" (1/3) ... [2024-11-10 23:05:29,561 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e17369e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:05:29, skipping insertion in model container [2024-11-10 23:05:29,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:29,561 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:05:29" (2/3) ... [2024-11-10 23:05:29,562 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e17369e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:05:29, skipping insertion in model container [2024-11-10 23:05:29,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:05:29,562 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:29" (3/3) ... [2024-11-10 23:05:29,564 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested-1.i [2024-11-10 23:05:29,614 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:05:29,614 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:05:29,615 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:05:29,615 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:05:29,615 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:05:29,615 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:05:29,615 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:05:29,615 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:05:29,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-11-10 23:05:29,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:05:29,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:29,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:29,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 23:05:29,638 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 23:05:29,638 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:05:29,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-11-10 23:05:29,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:05:29,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:29,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:29,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 23:05:29,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 23:05:29,646 INFO L745 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 14#ULTIMATE.init_returnLabel#1true assume true;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~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 7#L29-1true assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 12#L30-1true assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 9#L31true [2024-11-10 23:05:29,646 INFO L747 eck$LassoCheckResult]: Loop: 9#L31true assume true; 17#L31-2true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 11#L32true assume !true; 16#L31-1true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 9#L31true [2024-11-10 23:05:29,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1938365, now seen corresponding path program 1 times [2024-11-10 23:05:29,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:29,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800765357] [2024-11-10 23:05:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:29,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:29,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1599642, now seen corresponding path program 1 times [2024-11-10 23:05:29,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:29,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127063258] [2024-11-10 23:05:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:29,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:29,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:05:29,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127063258] [2024-11-10 23:05:29,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127063258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:05:29,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:05:29,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 23:05:29,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538841558] [2024-11-10 23:05:29,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:05:29,835 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:05:29,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:05:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 23:05:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 23:05:29,871 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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 2.0) internal successors, (4), 2 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) [2024-11-10 23:05:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:05:29,875 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-10 23:05:29,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-11-10 23:05:29,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:05:29,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 10 transitions. [2024-11-10 23:05:29,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-10 23:05:29,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-10 23:05:29,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2024-11-10 23:05:29,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:05:29,881 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-10 23:05:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2024-11-10 23:05:29,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-10 23:05:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-11-10 23:05:29,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-10 23:05:29,899 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-10 23:05:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 23:05:29,903 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-10 23:05:29,903 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:05:29,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-11-10 23:05:29,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:05:29,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:29,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:29,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 23:05:29,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-10 23:05:29,905 INFO L745 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 46#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 47#L29-1 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 43#L30-1 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 44#L31 [2024-11-10 23:05:29,905 INFO L747 eck$LassoCheckResult]: Loop: 44#L31 assume true; 51#L31-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 50#L32 assume true; 48#L32-1 assume !(main_~j~0#1 < main_~m~0#1); 49#L31-1 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 44#L31 [2024-11-10 23:05:29,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:29,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1938365, now seen corresponding path program 2 times [2024-11-10 23:05:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143695302] [2024-11-10 23:05:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:29,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:29,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 49588014, now seen corresponding path program 1 times [2024-11-10 23:05:29,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499662293] [2024-11-10 23:05:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:29,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:29,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:29,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1507194638, now seen corresponding path program 1 times [2024-11-10 23:05:29,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:29,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279956580] [2024-11-10 23:05:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:29,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:05:30,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279956580] [2024-11-10 23:05:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279956580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:05:30,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:05:30,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 23:05:30,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507720779] [2024-11-10 23:05:30,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:05:30,121 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:30,122 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:30,122 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:30,122 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:30,123 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:05:30,123 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,123 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:30,123 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:30,123 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2024-11-10 23:05:30,123 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:30,123 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:30,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,210 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:30,211 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:05:30,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:05:30,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-10 23:05:30,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:30,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:30,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-10 23:05:30,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:05:30,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-10 23:05:30,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:05:30,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:30,383 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:05:30,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:30,388 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:30,390 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:30,390 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:30,390 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:30,390 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:05:30,390 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,390 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:30,391 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:30,391 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2024-11-10 23:05:30,391 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:30,391 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:30,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,445 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:30,449 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:05:30,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,453 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) [2024-11-10 23:05:30,454 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 [2024-11-10 23:05:30,455 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 [2024-11-10 23:05:30,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:30,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:30,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:30,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:30,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:30,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:30,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:30,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:05:30,478 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 23:05:30,478 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:05:30,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,613 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) [2024-11-10 23:05:30,614 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 [2024-11-10 23:05:30,615 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:05:30,615 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:05:30,615 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:05:30,616 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-10 23:05:30,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:30,629 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:05:30,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:30,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 23:05:30,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:30,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:30,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:30,732 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 [2024-11-10 23:05:30,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-10 23:05:30,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 14 states and 17 transitions. Complement of second has 6 states. [2024-11-10 23:05:30,775 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 [2024-11-10 23:05:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-10 23:05:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-10 23:05:30,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-10 23:05:30,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:30,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-10 23:05:30,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:30,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-10 23:05:30,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:30,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-11-10 23:05:30,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 23:05:30,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 16 transitions. [2024-11-10 23:05:30,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-10 23:05:30,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-10 23:05:30,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-10 23:05:30,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:05:30,785 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-10 23:05:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-10 23:05:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-10 23:05:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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) [2024-11-10 23:05:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-10 23:05:30,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-10 23:05:30,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:05:30,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 23:05:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 23:05:30,788 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-10 23:05:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:05:30,804 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-10 23:05:30,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-11-10 23:05:30,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 23:05:30,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 20 transitions. [2024-11-10 23:05:30,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-10 23:05:30,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-10 23:05:30,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2024-11-10 23:05:30,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:05:30,807 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-11-10 23:05:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2024-11-10 23:05:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2024-11-10 23:05:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-10 23:05:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-10 23:05:30,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-10 23:05:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 23:05:30,813 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-10 23:05:30,813 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:05:30,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2024-11-10 23:05:30,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 23:05:30,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:30,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:30,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-10 23:05:30,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-10 23:05:30,815 INFO L745 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 150#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 151#L29-1 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 147#L30-1 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 148#L31 assume true; 156#L31-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 153#L32 [2024-11-10 23:05:30,815 INFO L747 eck$LassoCheckResult]: Loop: 153#L32 assume true; 152#L32-1 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 153#L32 [2024-11-10 23:05:30,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1862769468, now seen corresponding path program 1 times [2024-11-10 23:05:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:30,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231533673] [2024-11-10 23:05:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:30,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:30,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1472, now seen corresponding path program 1 times [2024-11-10 23:05:30,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:30,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255853485] [2024-11-10 23:05:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:30,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:30,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:30,863 INFO L85 PathProgramCache]: Analyzing trace with hash -879903173, now seen corresponding path program 1 times [2024-11-10 23:05:30,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:30,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409800118] [2024-11-10 23:05:30,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:30,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:30,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:30,901 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:30,902 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:30,902 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:30,902 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:30,902 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:05:30,902 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,902 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:30,902 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:30,902 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2024-11-10 23:05:30,902 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:30,902 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:30,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:30,947 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:30,948 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:05:30,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,950 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) [2024-11-10 23:05:30,951 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 [2024-11-10 23:05:30,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:30,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:30,971 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:05:30,971 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:05:30,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-10 23:05:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:30,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:30,989 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) [2024-11-10 23:05:30,990 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 [2024-11-10 23:05:30,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:30,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,017 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 [2024-11-10 23:05:31,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,019 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) [2024-11-10 23:05:31,020 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 [2024-11-10 23:05:31,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:05:31,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,047 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:05:31,047 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=4}, {ULTIMATE.start_main_~k~0#1=-1}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-10 23:05:31,057 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 [2024-11-10 23:05:31,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,059 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) [2024-11-10 23:05:31,060 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 [2024-11-10 23:05:31,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:31,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,082 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 [2024-11-10 23:05:31,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:05:31,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-10 23:05:31,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:05:31,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,194 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:05:31,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:31,199 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:31,199 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:31,199 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:31,200 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:31,200 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:05:31,200 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,200 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:31,200 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:31,200 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2024-11-10 23:05:31,200 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:31,200 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:31,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,245 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:31,245 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:05:31,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,248 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) [2024-11-10 23:05:31,249 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 [2024-11-10 23:05:31,250 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 [2024-11-10 23:05:31,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:31,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:31,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:31,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:31,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:31,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:31,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:31,268 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:05:31,283 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 [2024-11-10 23:05:31,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,285 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) [2024-11-10 23:05:31,287 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 [2024-11-10 23:05:31,288 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 [2024-11-10 23:05:31,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:31,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:31,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:31,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:31,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:31,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:31,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:31,303 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:05:31,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-10 23:05:31,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,324 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) [2024-11-10 23:05:31,325 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 [2024-11-10 23:05:31,326 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 [2024-11-10 23:05:31,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:31,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:31,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:31,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:31,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:31,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:31,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:31,347 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:05:31,350 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 23:05:31,350 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:05:31,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,352 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) [2024-11-10 23:05:31,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:05:31,355 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:05:31,355 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 [2024-11-10 23:05:31,356 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:05:31,356 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-11-10 23:05:31,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-10 23:05:31,371 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:05:31,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:31,424 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 [2024-11-10 23:05:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:31,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 23:05:31,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:31,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-10 23:05:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:31,450 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:31,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:31,455 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-10 23:05:31,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 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) [2024-11-10 23:05:31,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. 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 27 states and 32 transitions. Complement of second has 5 states. [2024-11-10 23:05:31,467 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 [2024-11-10 23:05:31,468 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) [2024-11-10 23:05:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-10 23:05:31,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-10 23:05:31,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:31,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-10 23:05:31,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:31,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-10 23:05:31,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:31,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2024-11-10 23:05:31,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 23:05:31,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 21 states and 24 transitions. [2024-11-10 23:05:31,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-10 23:05:31,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-10 23:05:31,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2024-11-10 23:05:31,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:05:31,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-10 23:05:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2024-11-10 23:05:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-10 23:05:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 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) [2024-11-10 23:05:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-10 23:05:31,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-10 23:05:31,474 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-10 23:05:31,474 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 23:05:31,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2024-11-10 23:05:31,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 23:05:31,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:05:31,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:05:31,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:05:31,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-10 23:05:31,476 INFO L745 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 235#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 236#L29-1 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 232#L30-1 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 233#L31 assume true; 241#L31-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 247#L32 assume true; 248#L32-1 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 251#L32 assume true; 249#L32-1 assume !(main_~j~0#1 < main_~m~0#1); 245#L31-1 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 242#L31 assume true; 243#L31-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 238#L32 [2024-11-10 23:05:31,476 INFO L747 eck$LassoCheckResult]: Loop: 238#L32 assume true; 237#L32-1 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 238#L32 [2024-11-10 23:05:31,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash 49183634, now seen corresponding path program 1 times [2024-11-10 23:05:31,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:31,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295824754] [2024-11-10 23:05:31,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:31,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:31,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:05:31,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295824754] [2024-11-10 23:05:31,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295824754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 23:05:31,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500984762] [2024-11-10 23:05:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:31,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 23:05:31,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,574 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 23:05:31,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 23:05:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:31,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:31,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:31,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 23:05:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:31,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500984762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 23:05:31,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 23:05:31,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 23:05:31,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463845921] [2024-11-10 23:05:31,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 23:05:31,695 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-10 23:05:31,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1472, now seen corresponding path program 2 times [2024-11-10 23:05:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:05:31,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209031446] [2024-11-10 23:05:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:05:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:05:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:31,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:05:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:05:31,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:05:31,722 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:31,723 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:31,723 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:31,723 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:31,723 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:05:31,723 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,723 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:31,723 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:31,723 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2024-11-10 23:05:31,723 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:31,723 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:31,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:31,767 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:31,768 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:05:31,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,770 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) [2024-11-10 23:05:31,773 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 [2024-11-10 23:05:31,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:31,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,789 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:05:31,789 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:05:31,804 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 [2024-11-10 23:05:31,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,807 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) [2024-11-10 23:05:31,808 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 [2024-11-10 23:05:31,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:31,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,840 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 [2024-11-10 23:05:31,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,842 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) [2024-11-10 23:05:31,843 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 [2024-11-10 23:05:31,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:05:31,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,871 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:05:31,872 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=4}, {ULTIMATE.start_main_~k~0#1=-1}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-10 23:05:31,882 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 [2024-11-10 23:05:31,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,883 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) [2024-11-10 23:05:31,884 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 [2024-11-10 23:05:31,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:05:31,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:31,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:31,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:31,908 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) [2024-11-10 23:05:31,909 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 [2024-11-10 23:05:31,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:05:31,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:05:32,028 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:05:32,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:32,033 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:05:32,033 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:05:32,033 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:05:32,033 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:05:32,033 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:05:32,033 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,034 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:05:32,034 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:05:32,034 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2024-11-10 23:05:32,034 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:05:32,034 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:05:32,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:32,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:32,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:32,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:05:32,079 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:05:32,080 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:05:32,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:32,081 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) [2024-11-10 23:05:32,083 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 [2024-11-10 23:05:32,084 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 [2024-11-10 23:05:32,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:32,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:32,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:32,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:32,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:32,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:32,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:32,099 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:05:32,114 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 [2024-11-10 23:05:32,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:32,117 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:05:32,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-10 23:05:32,120 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 [2024-11-10 23:05:32,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:32,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:32,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:32,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:32,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:32,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:32,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:32,137 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:05:32,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-10 23:05:32,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:32,154 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) [2024-11-10 23:05:32,155 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 [2024-11-10 23:05:32,156 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 [2024-11-10 23:05:32,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:32,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:32,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:32,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:32,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:32,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:32,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:32,172 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:05:32,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-10 23:05:32,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:32,189 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) [2024-11-10 23:05:32,190 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 [2024-11-10 23:05:32,191 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 [2024-11-10 23:05:32,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:05:32,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:05:32,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:05:32,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:05:32,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:05:32,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:05:32,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:05:32,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:05:32,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 23:05:32,214 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:05:32,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:05:32,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:05:32,216 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) [2024-11-10 23:05:32,217 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 [2024-11-10 23:05:32,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:05:32,218 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:05:32,218 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:05:32,218 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-11-10 23:05:32,232 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 [2024-11-10 23:05:32,235 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:05:32,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,287 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:32,291 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-10 23:05:32,291 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6 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) [2024-11-10 23:05:32,298 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6. 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 22 states and 26 transitions. Complement of second has 5 states. [2024-11-10 23:05:32,299 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 [2024-11-10 23:05:32,299 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) [2024-11-10 23:05:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-10 23:05:32,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-10 23:05:32,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:32,300 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-10 23:05:32,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,343 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:32,346 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-10 23:05:32,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6 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) [2024-11-10 23:05:32,353 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6. 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 22 states and 26 transitions. Complement of second has 5 states. [2024-11-10 23:05:32,353 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 [2024-11-10 23:05:32,354 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) [2024-11-10 23:05:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-10 23:05:32,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-10 23:05:32,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:32,354 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-10 23:05:32,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:05:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:05:32,395 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:05:32,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:05:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:05:32,398 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 1 loop predicates [2024-11-10 23:05:32,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6 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) [2024-11-10 23:05:32,405 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 6. 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 26 states and 31 transitions. Complement of second has 4 states. [2024-11-10 23:05:32,407 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 [2024-11-10 23:05:32,408 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) [2024-11-10 23:05:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-10 23:05:32,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-10 23:05:32,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:32,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 15 letters. Loop has 2 letters. [2024-11-10 23:05:32,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:32,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-10 23:05:32,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:05:32,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2024-11-10 23:05:32,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 23:05:32,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2024-11-10 23:05:32,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 23:05:32,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 23:05:32,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 23:05:32,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:05:32,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:05:32,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:05:32,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:05:32,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 23:05:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-10 23:05:32,413 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2024-11-10 23:05:32,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:05:32,413 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-10 23:05:32,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-10 23:05:32,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 23:05:32,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 23:05:32,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 23:05:32,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 23:05:32,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 23:05:32,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:05:32,414 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:05:32,414 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:05:32,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 23:05:32,414 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:05:32,414 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 23:05:32,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 23:05:32,415 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 23:05:32,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 23:05:32,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:05:32 BoogieIcfgContainer [2024-11-10 23:05:32,427 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:05:32,428 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:05:32,428 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:05:32,428 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:05:32,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:05:29" (3/4) ... [2024-11-10 23:05:32,430 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 23:05:32,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:05:32,433 INFO L158 Benchmark]: Toolchain (without parser) took 3577.14ms. Allocated memory is still 174.1MB. Free memory was 106.0MB in the beginning and 87.4MB in the end (delta: 18.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,433 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:05:32,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.24ms. Allocated memory is still 174.1MB. Free memory was 105.8MB in the beginning and 93.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.96ms. Allocated memory is still 174.1MB. Free memory was 93.6MB in the beginning and 148.1MB in the end (delta: -54.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,434 INFO L158 Benchmark]: Boogie Preprocessor took 61.38ms. Allocated memory is still 174.1MB. Free memory was 148.1MB in the beginning and 146.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,435 INFO L158 Benchmark]: IcfgBuilder took 309.26ms. Allocated memory is still 174.1MB. Free memory was 146.3MB in the beginning and 135.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,437 INFO L158 Benchmark]: BuchiAutomizer took 2871.37ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 88.5MB in the end (delta: 46.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,437 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 174.1MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:05:32,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.24ms. Allocated memory is still 174.1MB. Free memory was 105.8MB in the beginning and 93.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.96ms. Allocated memory is still 174.1MB. Free memory was 93.6MB in the beginning and 148.1MB in the end (delta: -54.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.38ms. Allocated memory is still 174.1MB. Free memory was 148.1MB in the beginning and 146.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 309.26ms. Allocated memory is still 174.1MB. Free memory was 146.3MB in the beginning and 135.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2871.37ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 88.5MB in the end (delta: 46.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 174.1MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -1 * j) + m) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -1 * j) + m) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 68 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 166ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 23:05:32,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-10 23:05:32,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-10 23:05:32,867 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