./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:12:22,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:12:22,625 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-15 00:12:22,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:12:22,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:12:22,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:12:22,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:12:22,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:12:22,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:12:22,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:12:22,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:12:22,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:12:22,657 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:12:22,657 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-15 00:12:22,658 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-15 00:12:22,658 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-15 00:12:22,658 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-15 00:12:22,659 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-15 00:12:22,659 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-15 00:12:22,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:12:22,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-15 00:12:22,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:12:22,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:12:22,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-15 00:12:22,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-15 00:12:22,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-15 00:12:22,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:12:22,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:12:22,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:12:22,668 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-15 00:12:22,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:12:22,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:12:22,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:12:22,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:12:22,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:12:22,670 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-15 00:12:22,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 [2024-10-15 00:12:22,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:12:22,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:12:22,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:12:22,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:12:22,957 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:12:22,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2024-10-15 00:12:24,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:12:24,657 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:12:24,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2024-10-15 00:12:24,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20caa28f5/463cee50914140f29ab5438402f6ad92/FLAG95ed6c401 [2024-10-15 00:12:25,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20caa28f5/463cee50914140f29ab5438402f6ad92 [2024-10-15 00:12:25,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:12:25,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:12:25,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:12:25,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:12:25,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:12:25,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ce70f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25, skipping insertion in model container [2024-10-15 00:12:25,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,080 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:12:25,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:12:25,260 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:12:25,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:12:25,294 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:12:25,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25 WrapperNode [2024-10-15 00:12:25,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:12:25,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:12:25,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:12:25,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:12:25,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,325 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-10-15 00:12:25,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:12:25,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:12:25,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:12:25,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:12:25,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,345 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-15 00:12:25,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:12:25,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:12:25,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:12:25,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:12:25,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (1/1) ... [2024-10-15 00:12:25,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:25,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:25,393 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) [2024-10-15 00:12:25,417 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 [2024-10-15 00:12:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:12:25,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:12:25,565 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:12:25,567 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:12:25,623 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-15 00:12:25,624 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:12:25,638 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:12:25,639 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-15 00:12:25,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:12:25 BoogieIcfgContainer [2024-10-15 00:12:25,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:12:25,641 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-15 00:12:25,641 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-15 00:12:25,645 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-15 00:12:25,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:12:25,646 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 12:12:25" (1/3) ... [2024-10-15 00:12:25,647 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b58dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:12:25, skipping insertion in model container [2024-10-15 00:12:25,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:12:25,648 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:25" (2/3) ... [2024-10-15 00:12:25,649 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b58dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:12:25, skipping insertion in model container [2024-10-15 00:12:25,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:12:25,649 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:12:25" (3/3) ... [2024-10-15 00:12:25,652 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2024-10-15 00:12:25,711 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-15 00:12:25,711 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-15 00:12:25,711 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-15 00:12:25,711 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-15 00:12:25,712 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-15 00:12:25,712 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-15 00:12:25,712 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-15 00:12:25,712 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-15 00:12:25,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:12:25,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-15 00:12:25,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:12:25,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:12:25,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:12:25,735 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:12:25,735 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-15 00:12:25,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:12:25,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-15 00:12:25,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:12:25,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:12:25,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:12:25,737 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:12:25,742 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L10-2true [2024-10-15 00:12:25,743 INFO L747 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 2#L12-2true assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 5#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L10-2true [2024-10-15 00:12:25,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:25,748 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-15 00:12:25,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:25,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932253877] [2024-10-15 00:12:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:25,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:25,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-10-15 00:12:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:25,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054991563] [2024-10-15 00:12:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:25,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2024-10-15 00:12:25,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:25,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777222279] [2024-10-15 00:12:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:25,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:26,087 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:26,087 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:26,088 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:26,088 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:26,088 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:12:26,088 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,089 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:26,089 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:26,089 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2024-10-15 00:12:26,089 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:26,094 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:26,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,219 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:26,219 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:12:26,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,224 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) [2024-10-15 00:12:26,226 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 [2024-10-15 00:12:26,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:26,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:26,257 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:26,257 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:26,269 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 [2024-10-15 00:12:26,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,271 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) [2024-10-15 00:12:26,273 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 [2024-10-15 00:12:26,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:26,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:26,297 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:26,297 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:26,316 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 [2024-10-15 00:12:26,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,319 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) [2024-10-15 00:12:26,320 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 [2024-10-15 00:12:26,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:26,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:26,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-15 00:12:26,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,357 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) [2024-10-15 00:12:26,358 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 [2024-10-15 00:12:26,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:12:26,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:26,379 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:12:26,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:26,396 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:26,396 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:26,396 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:26,397 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:26,397 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:12:26,397 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,397 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:26,397 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:26,398 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2024-10-15 00:12:26,398 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:26,398 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:26,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,482 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:26,488 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:12:26,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,493 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) [2024-10-15 00:12:26,495 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 [2024-10-15 00:12:26,496 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 [2024-10-15 00:12:26,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:26,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:26,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:26,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:26,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:12:26,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:12:26,528 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:12:26,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:26,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,544 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) [2024-10-15 00:12:26,545 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 [2024-10-15 00:12:26,546 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 [2024-10-15 00:12:26,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:26,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:26,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:26,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:26,560 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:12:26,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:12:26,568 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:12:26,584 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 [2024-10-15 00:12:26,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,586 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) [2024-10-15 00:12:26,588 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 [2024-10-15 00:12:26,589 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 [2024-10-15 00:12:26,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:26,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:12:26,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:26,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:26,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:26,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:12:26,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:12:26,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:12:26,612 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:12:26,613 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:12:26,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:26,637 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) [2024-10-15 00:12:26,638 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 [2024-10-15 00:12:26,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:12:26,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:12:26,639 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:12:26,640 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-10-15 00:12:26,651 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 [2024-10-15 00:12:26,655 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:12:26,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:26,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:12:26,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:26,711 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:12:26,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:26,786 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 [2024-10-15 00:12:26,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-15 00:12:26,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 20 states and 31 transitions. Complement of second has 6 states. [2024-10-15 00:12:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:12:26,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-15 00:12:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-15 00:12:26,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-15 00:12:26,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:26,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-15 00:12:26,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:26,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-15 00:12:26,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:26,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2024-10-15 00:12:26,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:26,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-10-15 00:12:26,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-10-15 00:12:26,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-15 00:12:26,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-15 00:12:26,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:12:26,862 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-15 00:12:26,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-15 00:12:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-15 00:12:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2024-10-15 00:12:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-10-15 00:12:26,886 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-15 00:12:26,886 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-15 00:12:26,886 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-15 00:12:26,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2024-10-15 00:12:26,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:26,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:12:26,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:12:26,887 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-15 00:12:26,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-15 00:12:26,887 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 71#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 68#L12-2 [2024-10-15 00:12:26,888 INFO L747 eck$LassoCheckResult]: Loop: 68#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 68#L12-2 [2024-10-15 00:12:26,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-15 00:12:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958612168] [2024-10-15 00:12:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:26,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:26,898 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-10-15 00:12:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:26,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267166845] [2024-10-15 00:12:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:26,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:26,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:26,913 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-10-15 00:12:26,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:26,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247255854] [2024-10-15 00:12:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:26,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:26,985 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:26,986 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:26,986 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:26,986 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:26,986 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:12:26,986 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:26,986 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:26,987 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:26,987 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2024-10-15 00:12:26,987 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:26,987 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:26,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:26,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,084 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:27,086 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:12:27,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,089 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) [2024-10-15 00:12:27,092 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 [2024-10-15 00:12:27,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:27,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:27,117 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:27,117 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:27,137 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 [2024-10-15 00:12:27,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,140 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) [2024-10-15 00:12:27,141 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 [2024-10-15 00:12:27,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:27,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:27,157 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:27,158 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:27,173 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 [2024-10-15 00:12:27,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,175 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) [2024-10-15 00:12:27,177 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 [2024-10-15 00:12:27,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:27,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:27,196 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:27,197 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:27,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:27,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,215 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) [2024-10-15 00:12:27,216 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 [2024-10-15 00:12:27,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:27,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:27,257 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 [2024-10-15 00:12:27,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,259 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) [2024-10-15 00:12:27,260 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 [2024-10-15 00:12:27,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:12:27,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:27,300 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:12:27,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-15 00:12:27,305 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:27,305 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:27,305 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:27,305 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:27,306 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:12:27,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:27,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:27,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2024-10-15 00:12:27,306 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:27,306 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:27,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:27,400 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:27,400 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:12:27,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,403 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:27,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-15 00:12:27,406 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 [2024-10-15 00:12:27,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:27,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:27,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:27,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:27,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:12:27,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:12:27,425 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:12:27,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-15 00:12:27,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,439 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) [2024-10-15 00:12:27,440 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 [2024-10-15 00:12:27,441 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 [2024-10-15 00:12:27,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:27,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:12:27,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:27,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:27,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:27,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:12:27,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:12:27,454 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:12:27,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:27,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,472 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) [2024-10-15 00:12:27,474 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 [2024-10-15 00:12:27,474 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 [2024-10-15 00:12:27,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:27,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:12:27,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:27,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:27,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:27,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:12:27,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:12:27,491 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:12:27,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-15 00:12:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,509 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:27,510 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 [2024-10-15 00:12:27,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:12:27,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:27,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:27,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:27,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:27,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:12:27,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:12:27,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:12:27,554 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:12:27,554 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:12:27,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,557 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) [2024-10-15 00:12:27,558 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 [2024-10-15 00:12:27,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:12:27,575 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-15 00:12:27,575 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:12:27,576 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-10-15 00:12:27,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:27,596 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-15 00:12:27,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:27,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-15 00:12:27,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:27,639 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:12:27,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:27,640 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 [2024-10-15 00:12:27,640 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 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) [2024-10-15 00:12:27,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. 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) Result 10 states and 14 transitions. Complement of second has 3 states. [2024-10-15 00:12:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-15 00:12:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2024-10-15 00:12:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-10-15 00:12:27,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2024-10-15 00:12:27,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:27,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2024-10-15 00:12:27,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:27,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-15 00:12:27,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:27,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 14 transitions. [2024-10-15 00:12:27,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:27,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 11 transitions. [2024-10-15 00:12:27,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-10-15 00:12:27,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-10-15 00:12:27,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-15 00:12:27,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:12:27,667 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-15 00:12:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-15 00:12:27,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-15 00:12:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2024-10-15 00:12:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-10-15 00:12:27,669 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-15 00:12:27,669 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-15 00:12:27,669 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-15 00:12:27,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-10-15 00:12:27,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:27,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:12:27,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:12:27,670 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-15 00:12:27,670 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-15 00:12:27,670 INFO L745 eck$LassoCheckResult]: Stem: 127#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 125#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 123#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 124#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 126#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 122#L12-2 [2024-10-15 00:12:27,670 INFO L747 eck$LassoCheckResult]: Loop: 122#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 122#L12-2 [2024-10-15 00:12:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2024-10-15 00:12:27,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:27,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776742706] [2024-10-15 00:12:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:27,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:27,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:27,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:27,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:27,714 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2024-10-15 00:12:27,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:27,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120676166] [2024-10-15 00:12:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:27,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:27,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:27,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2024-10-15 00:12:27,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:27,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894698084] [2024-10-15 00:12:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:27,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:27,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-15 00:12:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:27,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:12:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894698084] [2024-10-15 00:12:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894698084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:12:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399395982] [2024-10-15 00:12:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:27,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:12:27,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:27,883 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:12:27,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-15 00:12:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:27,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:12:27,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:27,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:12:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:28,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399395982] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:12:28,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:12:28,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-15 00:12:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140126879] [2024-10-15 00:12:28,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:12:28,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:12:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-15 00:12:28,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-15 00:12:28,050 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-10-15 00:12:28,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:12:28,119 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2024-10-15 00:12:28,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2024-10-15 00:12:28,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:28,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 13 transitions. [2024-10-15 00:12:28,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-15 00:12:28,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-15 00:12:28,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2024-10-15 00:12:28,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:12:28,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-15 00:12:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2024-10-15 00:12:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2024-10-15 00:12:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2024-10-15 00:12:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2024-10-15 00:12:28,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-10-15 00:12:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-15 00:12:28,123 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-10-15 00:12:28,124 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-15 00:12:28,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2024-10-15 00:12:28,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:12:28,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:12:28,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:12:28,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2024-10-15 00:12:28,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-15 00:12:28,125 INFO L745 eck$LassoCheckResult]: Stem: 210#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 207#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 205#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 206#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 212#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 209#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 208#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 204#L12-2 [2024-10-15 00:12:28,125 INFO L747 eck$LassoCheckResult]: Loop: 204#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 204#L12-2 [2024-10-15 00:12:28,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 301557853, now seen corresponding path program 2 times [2024-10-15 00:12:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160432856] [2024-10-15 00:12:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:28,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 3 times [2024-10-15 00:12:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:28,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565799763] [2024-10-15 00:12:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:28,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:28,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,156 INFO L85 PathProgramCache]: Analyzing trace with hash 758358871, now seen corresponding path program 3 times [2024-10-15 00:12:28,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:12:28,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196502223] [2024-10-15 00:12:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:12:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:12:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:12:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:12:28,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:12:28,260 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:28,261 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:28,261 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:28,261 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:28,261 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:12:28,261 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,261 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:28,261 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:28,261 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2024-10-15 00:12:28,261 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:28,261 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:28,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,348 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:28,348 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:12:28,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,352 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) [2024-10-15 00:12:28,354 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 [2024-10-15 00:12:28,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,370 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:28,371 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:28,386 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 [2024-10-15 00:12:28,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,389 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) [2024-10-15 00:12:28,391 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 [2024-10-15 00:12:28,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,407 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:28,408 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:28,421 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 [2024-10-15 00:12:28,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,424 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) [2024-10-15 00:12:28,426 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 [2024-10-15 00:12:28,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,450 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:28,450 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:28,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:28,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,464 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) [2024-10-15 00:12:28,464 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 [2024-10-15 00:12:28,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,476 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:28,476 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:28,487 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 [2024-10-15 00:12:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,488 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) [2024-10-15 00:12:28,489 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 [2024-10-15 00:12:28,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,509 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:12:28,509 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:12:28,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:28,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,520 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:28,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-15 00:12:28,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:12:28,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:28,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,554 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:28,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-15 00:12:28,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:12:28,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:12:28,593 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:12:28,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:28,598 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:12:28,598 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:12:28,598 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:12:28,598 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:12:28,598 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:12:28,598 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,598 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:12:28,598 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:12:28,598 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2024-10-15 00:12:28,598 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:12:28,599 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:12:28,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:12:28,674 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:12:28,674 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:12:28,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,676 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:28,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-15 00:12:28,679 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 [2024-10-15 00:12:28,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:12:28,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:12:28,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:12:28,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:12:28,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:12:28,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:12:28,707 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:12:28,716 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-10-15 00:12:28,716 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-15 00:12:28,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:12:28,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:12:28,718 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:12:28,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-15 00:12:28,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:12:28,739 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-15 00:12:28,740 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:12:28,740 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-10-15 00:12:28,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:28,758 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-15 00:12:28,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,806 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:28,807 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 [2024-10-15 00:12:28,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 12 states and 15 transitions. Complement of second has 3 states. [2024-10-15 00:12:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-15 00:12:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-10-15 00:12:28,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 8 letters. Loop has 1 letters. [2024-10-15 00:12:28,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:28,832 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:12:28,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,885 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:28,886 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 [2024-10-15 00:12:28,886 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,904 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 12 states and 15 transitions. Complement of second has 3 states. [2024-10-15 00:12:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-15 00:12:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-10-15 00:12:28,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 8 letters. Loop has 1 letters. [2024-10-15 00:12:28,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:28,906 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:12:28,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:12:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:12:28,964 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:12:28,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:12:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:12:28,965 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 [2024-10-15 00:12:28,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,986 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 10 states and 12 transitions. Complement of second has 2 states. [2024-10-15 00:12:28,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-15 00:12:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-10-15 00:12:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2024-10-15 00:12:28,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2024-10-15 00:12:28,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:28,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-15 00:12:28,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:28,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-15 00:12:28,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:12:28,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2024-10-15 00:12:28,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:12:28,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2024-10-15 00:12:28,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:12:28,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:12:28,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:12:28,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:12:28,990 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:12:28,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:12:28,990 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:12:28,991 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-15 00:12:28,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-15 00:12:28,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:12:28,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-15 00:12:28,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 12:12:28 BoogieIcfgContainer [2024-10-15 00:12:28,998 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-15 00:12:28,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:12:28,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:12:28,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:12:28,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:12:25" (3/4) ... [2024-10-15 00:12:29,000 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-15 00:12:29,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:12:29,002 INFO L158 Benchmark]: Toolchain (without parser) took 3954.21ms. Allocated memory is still 178.3MB. Free memory was 111.8MB in the beginning and 78.2MB in the end (delta: 33.6MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,002 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 104.9MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:12:29,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.13ms. Allocated memory is still 178.3MB. Free memory was 111.6MB in the beginning and 101.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.76ms. Allocated memory is still 178.3MB. Free memory was 101.3MB in the beginning and 100.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,003 INFO L158 Benchmark]: Boogie Preprocessor took 27.97ms. Allocated memory is still 178.3MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,003 INFO L158 Benchmark]: RCFGBuilder took 283.48ms. Allocated memory is still 178.3MB. Free memory was 98.4MB in the beginning and 144.8MB in the end (delta: -46.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,003 INFO L158 Benchmark]: BuchiAutomizer took 3357.34ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 79.2MB in the end (delta: 65.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,004 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 178.3MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:12:29,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 104.9MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.13ms. Allocated memory is still 178.3MB. Free memory was 111.6MB in the beginning and 101.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.76ms. Allocated memory is still 178.3MB. Free memory was 101.3MB in the beginning and 100.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.97ms. Allocated memory is still 178.3MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.48ms. Allocated memory is still 178.3MB. Free memory was 98.4MB in the beginning and 144.8MB in the end (delta: -46.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3357.34ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 79.2MB in the end (delta: 65.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 178.3MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 4 locations. One deterministic module has affine ranking function (2147483647 + ((long) -2 * y)) and consists of 2 locations. One nondeterministic module has affine ranking function (2147483647 + ((long) -2 * y)) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 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, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 20 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq145 hnf94 smp100 dnf100 smp100 tf103 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-15 00:12:29,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-15 00:12:29,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-15 00:12:29,428 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